====================================== | [ 10.870563][ T234] softirqs last disabled at (15858): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 10.870567][ T234] Preemption disabled at: | [ 10.870568][ T234] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.870579][ T234] Tainted: [W]=WARN [ 10.870580][ T234] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.870582][ T234] Call Trace: [ 10.870584][ T234] [ 10.870586][ T234] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.870594][ T234] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.870597][ T234] __might_resched.cold (kernel/sched/core.c:9234) [ 10.870603][ T234] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.870609][ T234] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.870616][ T234] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 10.870619][ T234] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.870629][ T234] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 10.870632][ T234] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.870639][ T234] put_chars (drivers/char/virtio_console.c:1176) [ 10.870643][ T234] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.870647][ T234] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.870657][ T234] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.870674][ T234] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.870678][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.870682][ T234] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.870690][ T234] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.870696][ T234] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.870699][ T234] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 10.870704][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.870707][ T234] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.870714][ T234] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.870721][ T234] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.870724][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.870734][ T234] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.870739][ T234] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.870741][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.870744][ T234] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 10.870751][ T234] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.870754][ T234] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.870759][ T234] vprintk_emit (kernel/printk/printk.c:2479) [ 10.870764][ T234] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.870767][ T234] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.870770][ T234] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 10.870776][ T234] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.870782][ T234] _printk (kernel/printk/printk.c:2504) [ 10.870787][ T234] ? snapshot_read.cold (user.c:?) [ 10.870793][ T234] ? br_multicast_flood (??:?) [ 10.870798][ T234] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 10.870800][ T234] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.870802][ T234] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.870811][ T234] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 10.870818][ T234] br_init_port (net/bridge/br_stp_if.c:39) [ 10.870822][ T234] new_nbp (net/bridge/br_if.c:449) [ 10.870828][ T234] br_add_if (net/bridge/br_if.c:592) [ 10.870832][ T234] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 10.870837][ T234] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 10.870846][ T234] do_set_master (net/core/rtnetlink.c:3071) [ 10.870853][ T234] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 10.870859][ T234] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.870864][ T234] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.870867][ T234] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.870871][ T234] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.870876][ T234] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.870880][ T234] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.870882][ T234] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.870887][ T234] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.870890][ T234] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.870892][ T234] ? kasan_save_track (mm/kasan/common.c:78) [ 10.870894][ T234] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.870898][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.870901][ T234] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.870905][ T234] ? ___sys_sendmsg (net/socket.c:2758) [ 10.870911][ T234] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.870915][ T234] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.870919][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.870922][ T234] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.870925][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.870927][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.870930][ T234] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.870934][ T234] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 10.870936][ T234] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.870940][ T234] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.870946][ T234] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.870948][ T234] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.870956][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.870960][ T234] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.870970][ T234] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.870980][ T234] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.870983][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.870991][ T234] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.870995][ T234] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.870998][ T234] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.871001][ T234] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.871008][ T234] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.871012][ T234] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.871017][ T234] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.871019][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.871028][ T234] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.871031][ T234] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.871037][ T234] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.871042][ T234] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.871047][ T234] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.871059][ T234] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 10.871062][ T234] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 10.871070][ T234] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.871077][ T234] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.871081][ T234] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.871089][ T234] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.871100][ T234] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.871106][ T234] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.871109][ T234] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.871118][ T234] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.871122][ T234] ____sys_sendmsg (net/socket.c:2713) [ 10.871126][ T234] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.871130][ T234] ? sock_write_iter (net/socket.c:1269) [ 10.871132][ T234] ? move_addr_to_kernel (net/socket.c:258) [ 10.871146][ T234] ___sys_sendmsg (net/socket.c:2767) [ 10.871151][ T234] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.871181][ T234] __sys_sendmsg (net/socket.c:2799) [ 10.871186][ T234] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.871198][ T234] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.871203][ T234] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.871207][ T234] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.871212][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.871216][ T234] RIP: 0033:0x7fbedc20e54e [ 10.871221][ T234] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 10.871223][ T234] RSP: 002b:00007fff141167f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.871227][ T234] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbedc20e54e [ 10.871230][ T234] RDX: 0000000000000000 RSI: 00007fff141168a0 RDI: 0000000000000005 [ 10.871231][ T234] RBP: 00007fff14116800 R08: 0000000000000000 R09: 0000000000000000 [ 10.871233][ T234] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e122 [ 10.871234][ T234] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff14116f60 | [ 12.961973][ T386] softirqs last disabled at (25078): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 12.961975][ T386] Preemption disabled at: | [ 12.961976][ T386] 0x0 | [ 12.961986][ T386] Tainted: [W]=WARN [ 12.961988][ T386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.961989][ T386] Call Trace: [ 12.961991][ T386] [ 12.961992][ T386] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.961999][ T386] __might_resched.cold (kernel/sched/core.c:9234) [ 12.962004][ T386] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.962008][ T386] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.962013][ T386] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 12.962015][ T386] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.962021][ T386] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 12.962024][ T386] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.962028][ T386] put_chars (drivers/char/virtio_console.c:1176) [ 12.962030][ T386] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.962037][ T386] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.962044][ T386] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.962047][ T386] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.962052][ T386] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.962056][ T386] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.962058][ T386] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 12.962061][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.962064][ T386] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.962068][ T386] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.962072][ T386] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.962074][ T386] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.962079][ T386] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.962082][ T386] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.962084][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.962086][ T386] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 12.962090][ T386] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.962094][ T386] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.962098][ T386] vprintk_emit (kernel/printk/printk.c:2479) [ 12.962101][ T386] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.962102][ T386] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.962105][ T386] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.962107][ T386] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.962112][ T386] _printk (kernel/printk/printk.c:2504) [ 12.962115][ T386] ? snapshot_read.cold (user.c:?) [ 12.962122][ T386] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 12.962127][ T386] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 12.962131][ T386] br_device_event (net/bridge/br.c:111) [ 12.962133][ T386] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 12.962137][ T386] ? packet_sendmsg_spkt (af_packet.c:?) [ 12.962142][ T386] notifier_call_chain (kernel/notifier.c:85) [ 12.962148][ T386] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 12.962153][ T386] ? netif_change_name (net/core/dev.c:1517) [ 12.962157][ T386] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 12.962160][ T386] ? __kernel_text_address (kernel/extable.c:79) [ 12.962163][ T386] ? write_profile (profile.c:?) [ 12.962168][ T386] netif_change_flags (net/core/dev.c:9882) [ 12.962172][ T386] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 12.962175][ T386] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.962178][ T386] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.962179][ T386] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.962181][ T386] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.962184][ T386] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.962186][ T386] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.962188][ T386] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.962191][ T386] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.962193][ T386] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.962194][ T386] ? kasan_save_track (mm/kasan/common.c:78) [ 12.962196][ T386] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.962198][ T386] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.962200][ T386] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.962203][ T386] ? ___sys_sendmsg (net/socket.c:2758) [ 12.962207][ T386] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.962209][ T386] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.962212][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.962213][ T386] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.962215][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.962216][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.962218][ T386] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.962220][ T386] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 12.962221][ T386] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.962223][ T386] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.962226][ T386] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.962230][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.962232][ T386] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.962237][ T386] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.962243][ T386] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.962245][ T386] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.962249][ T386] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.962251][ T386] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.962253][ T386] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.962255][ T386] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.962259][ T386] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.962261][ T386] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.962264][ T386] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.962266][ T386] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.962270][ T386] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.962272][ T386] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.962276][ T386] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.962279][ T386] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.962282][ T386] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.962288][ T386] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 12.962290][ T386] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 12.962295][ T386] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.962299][ T386] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.962301][ T386] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.962306][ T386] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.962310][ T386] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.962314][ T386] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.962315][ T386] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.962321][ T386] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.962323][ T386] ____sys_sendmsg (net/socket.c:2713) [ 12.962326][ T386] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.962328][ T386] ? sock_write_iter (net/socket.c:1269) [ 12.962330][ T386] ? move_addr_to_kernel (net/socket.c:258) [ 12.962337][ T386] ___sys_sendmsg (net/socket.c:2767) [ 12.962340][ T386] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.962356][ T386] __sys_sendmsg (net/socket.c:2799) [ 12.962359][ T386] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.962365][ T386] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.962369][ T386] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.962372][ T386] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.962375][ T386] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.962377][ T386] RIP: 0033:0x7ffa0d94854e [ 12.962379][ T386] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 12.962381][ T386] RSP: 002b:00007ffe1999d090 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.962383][ T386] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ffa0d94854e [ 12.962385][ T386] RDX: 0000000000000000 RSI: 00007ffe1999d140 RDI: 0000000000000005 [ 12.962385][ T386] RBP: 00007ffe1999d0a0 R08: 0000000000000000 R09: 0000000000000000 [ 12.962386][ T386] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e124 [ 12.962387][ T386] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe1999d800 | [ 14.013675][ T487] softirqs last disabled at (18206): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 14.013678][ T487] Preemption disabled at: | [ 14.013678][ T487] 0x0 | [ 14.013690][ T487] Tainted: [W]=WARN [ 14.013691][ T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.013692][ T487] Call Trace: [ 14.013694][ T487] [ 14.013696][ T487] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.013703][ T487] __might_resched.cold (kernel/sched/core.c:9234) [ 14.013708][ T487] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.013712][ T487] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.013717][ T487] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 14.013719][ T487] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.013726][ T487] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 14.013729][ T487] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.013733][ T487] put_chars (drivers/char/virtio_console.c:1176) [ 14.013736][ T487] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.013742][ T487] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.013750][ T487] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.013753][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.013758][ T487] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.013762][ T487] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.013764][ T487] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 14.013767][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.013770][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.013774][ T487] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.013779][ T487] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.013781][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.013786][ T487] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.013789][ T487] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.013791][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.013793][ T487] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 14.013797][ T487] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.013799][ T487] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.013801][ T487] vprintk_emit (kernel/printk/printk.c:2479) [ 14.013805][ T487] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.013806][ T487] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 14.013809][ T487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.013811][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.013816][ T487] _printk (kernel/printk/printk.c:2504) [ 14.013820][ T487] ? snapshot_read.cold (user.c:?) [ 14.013828][ T487] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 14.013833][ T487] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 14.013837][ T487] br_device_event (net/bridge/br.c:111) [ 14.013839][ T487] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 14.013843][ T487] ? packet_sendmsg_spkt (af_packet.c:?) [ 14.013849][ T487] notifier_call_chain (kernel/notifier.c:85) [ 14.013855][ T487] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 14.013860][ T487] ? netif_change_name (net/core/dev.c:1517) [ 14.013864][ T487] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 14.013867][ T487] ? __kernel_text_address (kernel/extable.c:79) [ 14.013870][ T487] ? write_profile (profile.c:?) [ 14.013875][ T487] netif_change_flags (net/core/dev.c:9882) [ 14.013879][ T487] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 14.013883][ T487] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 14.013885][ T487] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 14.013887][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 14.013889][ T487] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 14.013892][ T487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.013894][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.013896][ T487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.013899][ T487] ? kasan_save_stack (mm/kasan/common.c:58) [ 14.013901][ T487] ? kasan_save_stack (mm/kasan/common.c:57) [ 14.013902][ T487] ? kasan_save_track (mm/kasan/common.c:78) [ 14.013903][ T487] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 14.013906][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.013908][ T487] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 14.013911][ T487] ? ___sys_sendmsg (net/socket.c:2758) [ 14.013915][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.013917][ T487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.013920][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.013921][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.013923][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.013924][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.013926][ T487] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 14.013928][ T487] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 14.013930][ T487] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 14.013932][ T487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.013935][ T487] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 14.013939][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.013941][ T487] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 14.013947][ T487] rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.013952][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.013954][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.013959][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.013961][ T487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.013963][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.013965][ T487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.013969][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.013971][ T487] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.013974][ T487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.013976][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.013980][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.013982][ T487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.013986][ T487] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 14.013989][ T487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.013993][ T487] ? netlink_ack (./include/linux/skbuff.h:2718) [ 14.013999][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 14.014001][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 14.014006][ T487] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 14.014010][ T487] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 14.014013][ T487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.014017][ T487] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 14.014022][ T487] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 14.014026][ T487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.014027][ T487] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 14.014033][ T487] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 14.014036][ T487] ____sys_sendmsg (net/socket.c:2713) [ 14.014038][ T487] ? copy_msghdr_from_user (net/socket.c:2650) [ 14.014041][ T487] ? sock_write_iter (net/socket.c:1269) [ 14.014042][ T487] ? move_addr_to_kernel (net/socket.c:258) [ 14.014050][ T487] ___sys_sendmsg (net/socket.c:2767) [ 14.014053][ T487] ? copy_msghdr_from_user (net/socket.c:2619) [ 14.014070][ T487] __sys_sendmsg (net/socket.c:2799) [ 14.014073][ T487] ? __sys_sendmsg_sock (net/socket.c:2780) [ 14.014079][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.014082][ T487] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.014085][ T487] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.014089][ T487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.014093][ T487] RIP: 0033:0x7f2b2127a54e [ 14.014096][ T487] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 14.014098][ T487] RSP: 002b:00007fffa600f190 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 14.014100][ T487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2b2127a54e [ 14.014102][ T487] RDX: 0000000000000000 RSI: 00007fffa600f240 RDI: 0000000000000005 [ 14.014103][ T487] RBP: 00007fffa600f1a0 R08: 0000000000000000 R09: 0000000000000000 [ 14.014104][ T487] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e125 [ 14.014104][ T487] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffa600f900 | [ 15.036784][ T590] softirqs last disabled at (22158): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 15.036787][ T590] Preemption disabled at: | [ 15.036787][ T590] 0x0 | [ 15.036798][ T590] Tainted: [W]=WARN [ 15.036799][ T590] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.036800][ T590] Call Trace: [ 15.036802][ T590] [ 15.036803][ T590] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.036810][ T590] __might_resched.cold (kernel/sched/core.c:9234) [ 15.036815][ T590] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.036820][ T590] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.036824][ T590] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 15.036826][ T590] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.036833][ T590] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 15.036836][ T590] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.036839][ T590] put_chars (drivers/char/virtio_console.c:1176) [ 15.036842][ T590] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.036843][ T590] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.036847][ T590] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.036852][ T590] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.036860][ T590] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.036863][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.036865][ T590] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.036869][ T590] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.036873][ T590] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.036875][ T590] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 15.036879][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.036880][ T590] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.036885][ T590] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.036889][ T590] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.036891][ T590] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.036896][ T590] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.036899][ T590] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.036901][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.036903][ T590] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 15.036907][ T590] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.036909][ T590] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.036912][ T590] vprintk_emit (kernel/printk/printk.c:2479) [ 15.036915][ T590] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.036917][ T590] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.036919][ T590] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.036924][ T590] _printk (kernel/printk/printk.c:2504) [ 15.036928][ T590] ? snapshot_read.cold (user.c:?) [ 15.036934][ T590] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.036938][ T590] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 15.036943][ T590] br_init_port (net/bridge/br_stp_if.c:39) [ 15.036945][ T590] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 15.036947][ T590] br_device_event (net/bridge/br.c:120) [ 15.036950][ T590] ? packet_sendmsg_spkt (af_packet.c:?) [ 15.036952][ T590] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 15.036959][ T590] notifier_call_chain (kernel/notifier.c:85) [ 15.036965][ T590] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 15.036970][ T590] ? netif_change_name (net/core/dev.c:1517) [ 15.036974][ T590] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 15.036976][ T590] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 15.036980][ T590] ? __kernel_text_address (kernel/extable.c:79) [ 15.036981][ T590] ? write_profile (profile.c:?) [ 15.036987][ T590] netif_change_flags (net/core/dev.c:9882) [ 15.036991][ T590] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 15.036994][ T590] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 15.036997][ T590] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 15.036998][ T590] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 15.037002][ T590] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.037005][ T590] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.037007][ T590] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.037009][ T590] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.037012][ T590] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.037014][ T590] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.037015][ T590] ? kasan_save_track (mm/kasan/common.c:78) [ 15.037017][ T590] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 15.037019][ T590] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.037021][ T590] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 15.037024][ T590] ? ___sys_sendmsg (net/socket.c:2758) [ 15.037028][ T590] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.037030][ T590] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.037033][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.037035][ T590] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.037036][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.037038][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.037039][ T590] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 15.037042][ T590] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 15.037045][ T590] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 15.037047][ T590] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.037050][ T590] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 15.037054][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.037056][ T590] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 15.037062][ T590] rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.037067][ T590] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.037069][ T590] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.037074][ T590] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.037076][ T590] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.037078][ T590] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.037080][ T590] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.037084][ T590] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.037086][ T590] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.037090][ T590] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.037091][ T590] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.037096][ T590] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.037098][ T590] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.037101][ T590] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 15.037103][ T590] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.037106][ T590] ? netlink_ack (./include/linux/skbuff.h:2718) [ 15.037113][ T590] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 15.037115][ T590] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 15.037120][ T590] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 15.037124][ T590] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.037127][ T590] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.037131][ T590] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 15.037136][ T590] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.037140][ T590] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.037141][ T590] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 15.037147][ T590] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 15.037150][ T590] ____sys_sendmsg (net/socket.c:2713) [ 15.037152][ T590] ? copy_msghdr_from_user (net/socket.c:2650) [ 15.037155][ T590] ? sock_write_iter (net/socket.c:1269) [ 15.037156][ T590] ? move_addr_to_kernel (net/socket.c:258) [ 15.037164][ T590] ___sys_sendmsg (net/socket.c:2767) [ 15.037167][ T590] ? copy_msghdr_from_user (net/socket.c:2619) [ 15.037183][ T590] __sys_sendmsg (net/socket.c:2799) [ 15.037186][ T590] ? __sys_sendmsg_sock (net/socket.c:2780) [ 15.037193][ T590] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.037196][ T590] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.037199][ T590] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.037202][ T590] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.037204][ T590] RIP: 0033:0x7f2ebc5b254e [ 15.037206][ T590] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 15.037208][ T590] RSP: 002b:00007ffcdd6e2c80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 15.037211][ T590] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2ebc5b254e [ 15.037212][ T590] RDX: 0000000000000000 RSI: 00007ffcdd6e2d30 RDI: 0000000000000005 [ 15.037213][ T590] RBP: 00007ffcdd6e2c90 R08: 0000000000000000 R09: 0000000000000000 [ 15.037214][ T590] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e126 [ 15.037215][ T590] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcdd6e33f0 | [ 16.345285][ T685] softirqs last disabled at (23674): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 16.345289][ T685] Preemption disabled at: | [ 16.345290][ T685] 0x0 | [ 16.345303][ T685] Tainted: [W]=WARN [ 16.345304][ T685] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.345306][ T685] Call Trace: [ 16.345308][ T685] [ 16.345310][ T685] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.345318][ T685] __might_resched.cold (kernel/sched/core.c:9234) [ 16.345324][ T685] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.345329][ T685] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.345336][ T685] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 16.345339][ T685] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.345348][ T685] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 16.345352][ T685] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.345357][ T685] put_chars (drivers/char/virtio_console.c:1176) [ 16.345361][ T685] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.345363][ T685] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.345368][ T685] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.345377][ T685] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.345389][ T685] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.345393][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345396][ T685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.345402][ T685] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.345409][ T685] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.345411][ T685] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 16.345416][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345419][ T685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.345426][ T685] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.345433][ T685] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.345435][ T685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.345444][ T685] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.345448][ T685] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.345451][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345454][ T685] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 16.345460][ T685] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.345462][ T685] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.345467][ T685] vprintk_emit (kernel/printk/printk.c:2479) [ 16.345472][ T685] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.345475][ T685] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.345478][ T685] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.345486][ T685] _printk (kernel/printk/printk.c:2504) [ 16.345491][ T685] ? snapshot_read.cold (user.c:?) [ 16.345499][ T685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.345506][ T685] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 16.345513][ T685] br_init_port (net/bridge/br_stp_if.c:39) [ 16.345517][ T685] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 16.345520][ T685] br_device_event (net/bridge/br.c:120) [ 16.345524][ T685] ? packet_sendmsg_spkt (af_packet.c:?) [ 16.345527][ T685] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 16.345537][ T685] notifier_call_chain (kernel/notifier.c:85) [ 16.345546][ T685] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 16.345553][ T685] ? netif_change_name (net/core/dev.c:1517) [ 16.345559][ T685] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 16.345562][ T685] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 16.345567][ T685] ? __kernel_text_address (kernel/extable.c:79) [ 16.345569][ T685] ? write_profile (profile.c:?) [ 16.345576][ T685] netif_change_flags (net/core/dev.c:9882) [ 16.345583][ T685] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 16.345588][ T685] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 16.345591][ T685] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 16.345593][ T685] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 16.345596][ T685] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 16.345601][ T685] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.345604][ T685] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.345607][ T685] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.345611][ T685] ? kasan_save_stack (mm/kasan/common.c:58) [ 16.345614][ T685] ? kasan_save_stack (mm/kasan/common.c:57) [ 16.345616][ T685] ? kasan_save_track (mm/kasan/common.c:78) [ 16.345618][ T685] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 16.345622][ T685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.345624][ T685] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 16.345628][ T685] ? ___sys_sendmsg (net/socket.c:2758) [ 16.345635][ T685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.345637][ T685] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.345642][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345645][ T685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.345647][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345649][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345651][ T685] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 16.345655][ T685] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 16.345658][ T685] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 16.345666][ T685] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.345672][ T685] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 16.345678][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345682][ T685] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 16.345690][ T685] rtnl_newlink (net/core/rtnetlink.c:4215) [ 16.345700][ T685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.345702][ T685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.345710][ T685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.345713][ T685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.345716][ T685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.345719][ T685] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.345725][ T685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.345728][ T685] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 16.345733][ T685] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.345735][ T685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.345742][ T685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.345745][ T685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.345751][ T685] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 16.345753][ T685] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.345758][ T685] ? netlink_ack (./include/linux/skbuff.h:2718) [ 16.345768][ T685] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 16.345771][ T685] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 16.345778][ T685] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 16.345784][ T685] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 16.345788][ T685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.345795][ T685] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 16.345801][ T685] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 16.345807][ T685] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.345809][ T685] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 16.345817][ T685] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 16.345821][ T685] ____sys_sendmsg (net/socket.c:2713) [ 16.345825][ T685] ? copy_msghdr_from_user (net/socket.c:2650) [ 16.345828][ T685] ? sock_write_iter (net/socket.c:1269) [ 16.345830][ T685] ? move_addr_to_kernel (net/socket.c:258) [ 16.345843][ T685] ___sys_sendmsg (net/socket.c:2767) [ 16.345847][ T685] ? copy_msghdr_from_user (net/socket.c:2619) [ 16.345875][ T685] __sys_sendmsg (net/socket.c:2799) [ 16.345879][ T685] ? __sys_sendmsg_sock (net/socket.c:2780) [ 16.345890][ T685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.345895][ T685] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.345898][ T685] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.345903][ T685] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.345906][ T685] RIP: 0033:0x7f2b9c82b54e [ 16.345909][ T685] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 16.345911][ T685] RSP: 002b:00007ffca713a3a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 16.345914][ T685] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2b9c82b54e [ 16.345916][ T685] RDX: 0000000000000000 RSI: 00007ffca713a450 RDI: 0000000000000005 [ 16.345917][ T685] RBP: 00007ffca713a3b0 R08: 0000000000000000 R09: 0000000000000000 [ 16.345918][ T685] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e127 [ 16.345919][ T685] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffca713ab10 | [ 17.466840][ T785] softirqs last disabled at (21456): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 17.466843][ T785] Preemption disabled at: | [ 17.466843][ T785] 0x0 | [ 17.466854][ T785] Tainted: [W]=WARN [ 17.466855][ T785] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.466857][ T785] Call Trace: [ 17.466858][ T785] [ 17.466860][ T785] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.466866][ T785] __might_resched.cold (kernel/sched/core.c:9234) [ 17.466871][ T785] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.466876][ T785] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.466880][ T785] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 17.466882][ T785] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.466889][ T785] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 17.466892][ T785] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.466895][ T785] put_chars (drivers/char/virtio_console.c:1176) [ 17.466898][ T785] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.466899][ T785] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.466903][ T785] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.466908][ T785] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.466916][ T785] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.466918][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.466920][ T785] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.466924][ T785] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.466928][ T785] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.466930][ T785] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 17.466934][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.466935][ T785] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.466939][ T785] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.466944][ T785] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.466945][ T785] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.466951][ T785] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.466954][ T785] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.466956][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.466958][ T785] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 17.466962][ T785] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.466963][ T785] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.466966][ T785] vprintk_emit (kernel/printk/printk.c:2479) [ 17.466969][ T785] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.466971][ T785] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.466973][ T785] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.466978][ T785] _printk (kernel/printk/printk.c:2504) [ 17.466982][ T785] ? snapshot_read.cold (user.c:?) [ 17.466987][ T785] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.466991][ T785] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 17.466996][ T785] br_init_port (net/bridge/br_stp_if.c:39) [ 17.466999][ T785] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 17.467000][ T785] br_device_event (net/bridge/br.c:120) [ 17.467003][ T785] ? packet_sendmsg_spkt (af_packet.c:?) [ 17.467005][ T785] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 17.467012][ T785] notifier_call_chain (kernel/notifier.c:85) [ 17.467018][ T785] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 17.467023][ T785] ? netif_change_name (net/core/dev.c:1517) [ 17.467027][ T785] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 17.467029][ T785] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 17.467032][ T785] ? __kernel_text_address (kernel/extable.c:79) [ 17.467034][ T785] ? write_profile (profile.c:?) [ 17.467039][ T785] netif_change_flags (net/core/dev.c:9882) [ 17.467043][ T785] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 17.467046][ T785] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 17.467048][ T785] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 17.467050][ T785] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 17.467052][ T785] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 17.467055][ T785] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.467057][ T785] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.467059][ T785] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.467061][ T785] ? kasan_save_stack (mm/kasan/common.c:58) [ 17.467064][ T785] ? kasan_save_stack (mm/kasan/common.c:57) [ 17.467065][ T785] ? kasan_save_track (mm/kasan/common.c:78) [ 17.467066][ T785] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 17.467068][ T785] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.467070][ T785] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 17.467073][ T785] ? ___sys_sendmsg (net/socket.c:2758) [ 17.467077][ T785] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.467079][ T785] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 17.467082][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.467083][ T785] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.467085][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.467086][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.467088][ T785] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 17.467090][ T785] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 17.467093][ T785] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 17.467095][ T785] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 17.467099][ T785] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 17.467102][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.467104][ T785] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 17.467110][ T785] rtnl_newlink (net/core/rtnetlink.c:4215) [ 17.467115][ T785] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 17.467117][ T785] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.467122][ T785] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.467123][ T785] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.467126][ T785] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 17.467128][ T785] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.467131][ T785] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 17.467133][ T785] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 17.467137][ T785] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 17.467138][ T785] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.467143][ T785] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.467145][ T785] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.467148][ T785] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 17.467150][ T785] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 17.467153][ T785] ? netlink_ack (./include/linux/skbuff.h:2718) [ 17.467160][ T785] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 17.467162][ T785] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 17.467166][ T785] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 17.467170][ T785] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 17.467173][ T785] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.467177][ T785] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 17.467181][ T785] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 17.467185][ T785] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.467187][ T785] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 17.467192][ T785] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 17.467195][ T785] ____sys_sendmsg (net/socket.c:2713) [ 17.467197][ T785] ? copy_msghdr_from_user (net/socket.c:2650) [ 17.467200][ T785] ? sock_write_iter (net/socket.c:1269) [ 17.467201][ T785] ? move_addr_to_kernel (net/socket.c:258) [ 17.467209][ T785] ___sys_sendmsg (net/socket.c:2767) [ 17.467212][ T785] ? copy_msghdr_from_user (net/socket.c:2619) [ 17.467228][ T785] __sys_sendmsg (net/socket.c:2799) [ 17.467231][ T785] ? __sys_sendmsg_sock (net/socket.c:2780) [ 17.467237][ T785] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.467240][ T785] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.467243][ T785] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.467246][ T785] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.467249][ T785] RIP: 0033:0x7fe8caebf54e [ 17.467251][ T785] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 17.467253][ T785] RSP: 002b:00007ffe4c24bc70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 17.467256][ T785] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe8caebf54e [ 17.467257][ T785] RDX: 0000000000000000 RSI: 00007ffe4c24bd20 RDI: 0000000000000005 [ 17.467258][ T785] RBP: 00007ffe4c24bc80 R08: 0000000000000000 R09: 0000000000000000 [ 17.467259][ T785] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e128 [ 17.467259][ T785] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe4c24c3e0 | [ 18.968725][ T536] softirqs last disabled at (69234): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 18.968728][ T536] Preemption disabled at: | [ 18.968729][ T536] 0x0 | [ 18.968740][ T536] Tainted: [W]=WARN [ 18.968741][ T536] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.968742][ T536] Workqueue: events_unbound linkwatch_event [ 18.968746][ T536] Call Trace: [ 18.968748][ T536] [ 18.968749][ T536] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.968756][ T536] __might_resched.cold (kernel/sched/core.c:9234) [ 18.968761][ T536] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.968765][ T536] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.968770][ T536] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 18.968772][ T536] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.968779][ T536] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 18.968782][ T536] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.968786][ T536] put_chars (drivers/char/virtio_console.c:1176) [ 18.968788][ T536] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.968791][ T536] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.968795][ T536] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.968798][ T536] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.968802][ T536] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.968806][ T536] ? mark_usage (kernel/locking/lockdep.c:4690) [ 18.968808][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.968810][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.968815][ T536] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.968816][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.968821][ T536] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.968826][ T536] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.968830][ T536] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.968832][ T536] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 18.968835][ T536] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.968837][ T536] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.968841][ T536] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.968846][ T536] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.968848][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.968854][ T536] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.968857][ T536] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.968859][ T536] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.968861][ T536] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 18.968864][ T536] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.968866][ T536] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.968869][ T536] vprintk_emit (kernel/printk/printk.c:2479) [ 18.968873][ T536] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.968875][ T536] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.968877][ T536] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.968881][ T536] _printk (kernel/printk/printk.c:2504) [ 18.968885][ T536] ? snapshot_read.cold (user.c:?) [ 18.968890][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.968894][ T536] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 18.968899][ T536] br_init_port (net/bridge/br_stp_if.c:39) [ 18.968901][ T536] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 18.968903][ T536] br_port_carrier_check (net/bridge/br_if.c:90) [ 18.968907][ T536] br_device_event (net/bridge/br.c:101) [ 18.968911][ T536] ? packet_sendmsg_spkt (af_packet.c:?) [ 18.968912][ T536] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 18.968920][ T536] notifier_call_chain (kernel/notifier.c:85) [ 18.968926][ T536] netif_state_change (net/core/dev.c:1625) [ 18.968931][ T536] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 18.968936][ T536] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 18.968938][ T536] __linkwatch_run_queue (net/core/link_watch.c:240) [ 18.968941][ T536] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 18.968944][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.968948][ T536] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 18.968951][ T536] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 18.968954][ T536] process_one_work (kernel/workqueue.c:3387) [ 18.968961][ T536] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 18.968964][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.968972][ T536] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 18.968977][ T536] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 18.968979][ T536] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 18.968982][ T536] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 18.968985][ T536] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 18.968987][ T536] kthread (kernel/kthread.c:436) [ 18.968989][ T536] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 18.968993][ T536] ? kthread_affine_preferred (kernel/kthread.c:857) [ 18.968996][ T536] ret_from_fork (arch/x86/kernel/process.c:158) [ 18.969000][ T536] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 18.969004][ T536] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 18.969008][ T536] ? kthread_affine_preferred (kernel/kthread.c:857) [ 18.969011][ T536] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 20.023145][ T968] softirqs last disabled at (17104): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 20.023147][ T968] Preemption disabled at: | [ 20.023148][ T968] 0x0 | [ 20.023159][ T968] Tainted: [W]=WARN [ 20.023160][ T968] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.023162][ T968] Call Trace: [ 20.023164][ T968] [ 20.023165][ T968] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.023172][ T968] __might_resched.cold (kernel/sched/core.c:9234) [ 20.023177][ T968] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.023181][ T968] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 20.023186][ T968] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 20.023188][ T968] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.023194][ T968] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 20.023197][ T968] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.023201][ T968] put_chars (drivers/char/virtio_console.c:1176) [ 20.023204][ T968] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.023210][ T968] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.023218][ T968] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.023221][ T968] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.023226][ T968] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.023230][ T968] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.023232][ T968] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 20.023235][ T968] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.023238][ T968] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.023242][ T968] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.023246][ T968] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.023248][ T968] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.023254][ T968] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.023257][ T968] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.023259][ T968] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.023260][ T968] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 20.023264][ T968] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.023266][ T968] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.023269][ T968] vprintk_emit (kernel/printk/printk.c:2479) [ 20.023272][ T968] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.023274][ T968] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 20.023276][ T968] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.023278][ T968] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.023283][ T968] _printk (kernel/printk/printk.c:2504) [ 20.023287][ T968] ? snapshot_read.cold (user.c:?) [ 20.023294][ T968] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 20.023299][ T968] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 20.023302][ T968] br_device_event (net/bridge/br.c:111) [ 20.023305][ T968] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 20.023309][ T968] ? packet_sendmsg_spkt (af_packet.c:?) [ 20.023315][ T968] notifier_call_chain (kernel/notifier.c:85) [ 20.023320][ T968] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 20.023325][ T968] ? netif_change_name (net/core/dev.c:1517) [ 20.023329][ T968] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 20.023333][ T968] ? __kernel_text_address (kernel/extable.c:79) [ 20.023335][ T968] ? write_profile (profile.c:?) [ 20.023340][ T968] netif_change_flags (net/core/dev.c:9882) [ 20.023344][ T968] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 20.023347][ T968] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 20.023350][ T968] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 20.023351][ T968] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 20.023353][ T968] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.023357][ T968] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.023359][ T968] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.023360][ T968] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.023363][ T968] ? kasan_save_stack (mm/kasan/common.c:58) [ 20.023365][ T968] ? kasan_save_stack (mm/kasan/common.c:57) [ 20.023366][ T968] ? kasan_save_track (mm/kasan/common.c:78) [ 20.023368][ T968] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 20.023370][ T968] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.023372][ T968] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 20.023375][ T968] ? ___sys_sendmsg (net/socket.c:2758) [ 20.023379][ T968] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.023381][ T968] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.023384][ T968] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.023385][ T968] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.023387][ T968] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.023388][ T968] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.023390][ T968] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 20.023392][ T968] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 20.023393][ T968] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 20.023395][ T968] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.023399][ T968] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 20.023402][ T968] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.023405][ T968] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 20.023410][ T968] rtnl_newlink (net/core/rtnetlink.c:4215) [ 20.023415][ T968] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.023417][ T968] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.023422][ T968] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.023424][ T968] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.023426][ T968] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.023428][ T968] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.023432][ T968] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.023434][ T968] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 20.023437][ T968] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.023438][ T968] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.023443][ T968] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.023445][ T968] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.023449][ T968] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 20.023452][ T968] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.023455][ T968] ? netlink_ack (./include/linux/skbuff.h:2718) [ 20.023461][ T968] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 20.023463][ T968] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 20.023468][ T968] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 20.023472][ T968] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 20.023475][ T968] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.023479][ T968] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 20.023483][ T968] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.023487][ T968] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.023489][ T968] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 20.023494][ T968] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 20.023497][ T968] ____sys_sendmsg (net/socket.c:2713) [ 20.023499][ T968] ? copy_msghdr_from_user (net/socket.c:2650) [ 20.023502][ T968] ? sock_write_iter (net/socket.c:1269) [ 20.023503][ T968] ? move_addr_to_kernel (net/socket.c:258) [ 20.023511][ T968] ___sys_sendmsg (net/socket.c:2767) [ 20.023514][ T968] ? copy_msghdr_from_user (net/socket.c:2619) [ 20.023530][ T968] __sys_sendmsg (net/socket.c:2799) [ 20.023533][ T968] ? __sys_sendmsg_sock (net/socket.c:2780) [ 20.023540][ T968] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.023543][ T968] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.023546][ T968] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.023549][ T968] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.023551][ T968] RIP: 0033:0x7f0178a0e54e [ 20.023553][ T968] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 20.023555][ T968] RSP: 002b:00007ffea8a03700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 20.023558][ T968] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0178a0e54e [ 20.023559][ T968] RDX: 0000000000000000 RSI: 00007ffea8a037b0 RDI: 0000000000000005 [ 20.023560][ T968] RBP: 00007ffea8a03710 R08: 0000000000000000 R09: 0000000000000000 [ 20.023561][ T968] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e12b [ 20.023562][ T968] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea8a03e70 | [ 21.044752][ T1060] softirqs last disabled at (15034): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 21.044754][ T1060] Preemption disabled at: | [ 21.044755][ T1060] 0x0 | [ 21.044765][ T1060] Tainted: [W]=WARN [ 21.044766][ T1060] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.044768][ T1060] Call Trace: [ 21.044769][ T1060] [ 21.044771][ T1060] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 21.044777][ T1060] __might_resched.cold (kernel/sched/core.c:9234) [ 21.044782][ T1060] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 21.044786][ T1060] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 21.044791][ T1060] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 21.044792][ T1060] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.044799][ T1060] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 21.044801][ T1060] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.044805][ T1060] put_chars (drivers/char/virtio_console.c:1176) [ 21.044807][ T1060] ? __send_to_port (drivers/char/virtio_console.c:654) [ 21.044814][ T1060] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 21.044821][ T1060] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 21.044824][ T1060] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.044828][ T1060] console_emit_next_record (kernel/printk/printk.c:3183) [ 21.044832][ T1060] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 21.044834][ T1060] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 21.044837][ T1060] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.044840][ T1060] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.044844][ T1060] console_flush_one_record (kernel/printk/printk.c:3268) [ 21.044848][ T1060] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 21.044850][ T1060] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.044855][ T1060] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 21.044858][ T1060] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 21.044860][ T1060] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.044862][ T1060] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 21.044865][ T1060] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 21.044867][ T1060] ? vprintk_emit (kernel/printk/printk.c:2478) [ 21.044870][ T1060] vprintk_emit (kernel/printk/printk.c:2479) [ 21.044873][ T1060] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 21.044874][ T1060] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 21.044877][ T1060] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.044879][ T1060] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.044883][ T1060] _printk (kernel/printk/printk.c:2504) [ 21.044887][ T1060] ? snapshot_read.cold (user.c:?) [ 21.044894][ T1060] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 21.044899][ T1060] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 21.044903][ T1060] br_device_event (net/bridge/br.c:111) [ 21.044905][ T1060] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 21.044909][ T1060] ? packet_sendmsg_spkt (af_packet.c:?) [ 21.044915][ T1060] notifier_call_chain (kernel/notifier.c:85) [ 21.044920][ T1060] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 21.044925][ T1060] ? netif_change_name (net/core/dev.c:1517) [ 21.044929][ T1060] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 21.044932][ T1060] ? __kernel_text_address (kernel/extable.c:79) [ 21.044934][ T1060] ? write_profile (profile.c:?) [ 21.044939][ T1060] netif_change_flags (net/core/dev.c:9882) [ 21.044943][ T1060] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 21.044946][ T1060] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 21.044948][ T1060] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 21.044950][ T1060] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 21.044952][ T1060] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 21.044958][ T1060] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.044960][ T1060] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.044962][ T1060] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 21.044964][ T1060] ? kasan_save_stack (mm/kasan/common.c:58) [ 21.044966][ T1060] ? kasan_save_stack (mm/kasan/common.c:57) [ 21.044968][ T1060] ? kasan_save_track (mm/kasan/common.c:78) [ 21.044969][ T1060] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 21.044971][ T1060] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.044973][ T1060] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 21.044976][ T1060] ? ___sys_sendmsg (net/socket.c:2758) [ 21.044980][ T1060] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.044982][ T1060] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.044984][ T1060] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.044986][ T1060] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.044987][ T1060] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.044989][ T1060] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.044990][ T1060] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 21.044993][ T1060] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 21.044994][ T1060] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 21.044996][ T1060] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.044999][ T1060] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 21.045003][ T1060] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.045005][ T1060] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 21.045010][ T1060] rtnl_newlink (net/core/rtnetlink.c:4215) [ 21.045015][ T1060] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.045017][ T1060] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.045022][ T1060] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.045024][ T1060] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.045026][ T1060] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.045028][ T1060] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.045031][ T1060] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.045033][ T1060] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 21.045037][ T1060] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.045038][ T1060] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.045042][ T1060] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.045044][ T1060] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.045048][ T1060] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 21.045051][ T1060] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.045054][ T1060] ? netlink_ack (./include/linux/skbuff.h:2718) [ 21.045060][ T1060] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 21.045062][ T1060] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 21.045066][ T1060] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 21.045070][ T1060] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 21.045073][ T1060] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.045077][ T1060] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 21.045081][ T1060] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 21.045085][ T1060] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.045086][ T1060] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 21.045092][ T1060] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 21.045095][ T1060] ____sys_sendmsg (net/socket.c:2713) [ 21.045097][ T1060] ? copy_msghdr_from_user (net/socket.c:2650) [ 21.045099][ T1060] ? sock_write_iter (net/socket.c:1269) [ 21.045101][ T1060] ? move_addr_to_kernel (net/socket.c:258) [ 21.045108][ T1060] ___sys_sendmsg (net/socket.c:2767) [ 21.045111][ T1060] ? copy_msghdr_from_user (net/socket.c:2619) [ 21.045127][ T1060] __sys_sendmsg (net/socket.c:2799) [ 21.045130][ T1060] ? __sys_sendmsg_sock (net/socket.c:2780) [ 21.045136][ T1060] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.045139][ T1060] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 21.045142][ T1060] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 21.045145][ T1060] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 21.045147][ T1060] RIP: 0033:0x7f969ba8d54e [ 21.045149][ T1060] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 21.045151][ T1060] RSP: 002b:00007ffdcd51fe00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 21.045154][ T1060] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f969ba8d54e [ 21.045155][ T1060] RDX: 0000000000000000 RSI: 00007ffdcd51feb0 RDI: 0000000000000005 [ 21.045156][ T1060] RBP: 00007ffdcd51fe10 R08: 0000000000000000 R09: 0000000000000000 [ 21.045157][ T1060] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e12c [ 21.045157][ T1060] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdcd520570 | [ 22.333615][ T1170] softirqs last disabled at (23990): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 22.333617][ T1170] Preemption disabled at: | [ 22.333618][ T1170] 0x0 | [ 22.333628][ T1170] Tainted: [W]=WARN [ 22.333629][ T1170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.333631][ T1170] Call Trace: [ 22.333632][ T1170] [ 22.333634][ T1170] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.333640][ T1170] __might_resched.cold (kernel/sched/core.c:9234) [ 22.333645][ T1170] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.333649][ T1170] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.333654][ T1170] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 22.333656][ T1170] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.333667][ T1170] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 22.333670][ T1170] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.333674][ T1170] put_chars (drivers/char/virtio_console.c:1176) [ 22.333676][ T1170] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.333677][ T1170] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.333681][ T1170] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.333687][ T1170] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.333694][ T1170] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.333697][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.333699][ T1170] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.333703][ T1170] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.333707][ T1170] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.333709][ T1170] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 22.333712][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.333714][ T1170] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.333718][ T1170] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.333722][ T1170] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.333724][ T1170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.333729][ T1170] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.333732][ T1170] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.333734][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.333735][ T1170] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 22.333739][ T1170] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.333741][ T1170] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.333743][ T1170] vprintk_emit (kernel/printk/printk.c:2479) [ 22.333747][ T1170] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.333749][ T1170] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.333751][ T1170] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.333755][ T1170] _printk (kernel/printk/printk.c:2504) [ 22.333759][ T1170] ? snapshot_read.cold (user.c:?) [ 22.333764][ T1170] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.333768][ T1170] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 22.333773][ T1170] br_init_port (net/bridge/br_stp_if.c:39) [ 22.333775][ T1170] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 22.333777][ T1170] br_device_event (net/bridge/br.c:120) [ 22.333780][ T1170] ? packet_sendmsg_spkt (af_packet.c:?) [ 22.333781][ T1170] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 22.333788][ T1170] notifier_call_chain (kernel/notifier.c:85) [ 22.333793][ T1170] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 22.333798][ T1170] ? netif_change_name (net/core/dev.c:1517) [ 22.333802][ T1170] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 22.333804][ T1170] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 22.333807][ T1170] ? __kernel_text_address (kernel/extable.c:79) [ 22.333809][ T1170] ? write_profile (profile.c:?) [ 22.333814][ T1170] netif_change_flags (net/core/dev.c:9882) [ 22.333817][ T1170] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 22.333821][ T1170] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 22.333823][ T1170] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 22.333824][ T1170] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 22.333826][ T1170] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 22.333829][ T1170] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.333831][ T1170] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.333833][ T1170] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.333836][ T1170] ? kasan_save_stack (mm/kasan/common.c:58) [ 22.333838][ T1170] ? kasan_save_stack (mm/kasan/common.c:57) [ 22.333839][ T1170] ? kasan_save_track (mm/kasan/common.c:78) [ 22.333840][ T1170] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 22.333843][ T1170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.333845][ T1170] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 22.333847][ T1170] ? ___sys_sendmsg (net/socket.c:2758) [ 22.333851][ T1170] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.333853][ T1170] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 22.333856][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.333857][ T1170] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.333859][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.333860][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.333862][ T1170] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 22.333864][ T1170] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 22.333867][ T1170] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 22.333869][ T1170] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 22.333872][ T1170] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 22.333876][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.333878][ T1170] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 22.333883][ T1170] rtnl_newlink (net/core/rtnetlink.c:4215) [ 22.333889][ T1170] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.333890][ T1170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.333895][ T1170] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.333897][ T1170] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.333899][ T1170] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.333901][ T1170] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.333904][ T1170] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.333906][ T1170] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 22.333910][ T1170] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 22.333911][ T1170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.333915][ T1170] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.333917][ T1170] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.333921][ T1170] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 22.333922][ T1170] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 22.333925][ T1170] ? netlink_ack (./include/linux/skbuff.h:2718) [ 22.333932][ T1170] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 22.333934][ T1170] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 22.333939][ T1170] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 22.333942][ T1170] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 22.333945][ T1170] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.333949][ T1170] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 22.333953][ T1170] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 22.333957][ T1170] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.333959][ T1170] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 22.333964][ T1170] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 22.333967][ T1170] ____sys_sendmsg (net/socket.c:2713) [ 22.333969][ T1170] ? copy_msghdr_from_user (net/socket.c:2650) [ 22.333971][ T1170] ? sock_write_iter (net/socket.c:1269) [ 22.333973][ T1170] ? move_addr_to_kernel (net/socket.c:258) [ 22.333980][ T1170] ___sys_sendmsg (net/socket.c:2767) [ 22.333983][ T1170] ? copy_msghdr_from_user (net/socket.c:2619) [ 22.333999][ T1170] __sys_sendmsg (net/socket.c:2799) [ 22.334002][ T1170] ? __sys_sendmsg_sock (net/socket.c:2780) [ 22.334008][ T1170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.334011][ T1170] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.334014][ T1170] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.334017][ T1170] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.334019][ T1170] RIP: 0033:0x7ff25ea6654e [ 22.334021][ T1170] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 22.334023][ T1170] RSP: 002b:00007fffaaa27e90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 22.334026][ T1170] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff25ea6654e [ 22.334027][ T1170] RDX: 0000000000000000 RSI: 00007fffaaa27f40 RDI: 0000000000000005 [ 22.334028][ T1170] RBP: 00007fffaaa27ea0 R08: 0000000000000000 R09: 0000000000000000 [ 22.334029][ T1170] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e12d [ 22.334029][ T1170] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffaaa28600 | [ 23.498020][ T1231] softirqs last disabled at (16428): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 23.498023][ T1231] Preemption disabled at: | [ 23.498023][ T1231] 0x0 | [ 23.498034][ T1231] Tainted: [W]=WARN [ 23.498035][ T1231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.498037][ T1231] Call Trace: [ 23.498039][ T1231] [ 23.498040][ T1231] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.498047][ T1231] __might_resched.cold (kernel/sched/core.c:9234) [ 23.498051][ T1231] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.498056][ T1231] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.498061][ T1231] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 23.498063][ T1231] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.498069][ T1231] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 23.498072][ T1231] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.498076][ T1231] put_chars (drivers/char/virtio_console.c:1176) [ 23.498078][ T1231] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.498085][ T1231] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.498095][ T1231] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.498099][ T1231] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.498103][ T1231] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.498108][ T1231] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.498110][ T1231] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 23.498113][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498116][ T1231] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.498120][ T1231] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.498124][ T1231] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.498127][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.498132][ T1231] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.498136][ T1231] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.498137][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498139][ T1231] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 23.498143][ T1231] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.498145][ T1231] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.498148][ T1231] vprintk_emit (kernel/printk/printk.c:2479) [ 23.498152][ T1231] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.498153][ T1231] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 23.498155][ T1231] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.498158][ T1231] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.498162][ T1231] _printk (kernel/printk/printk.c:2504) [ 23.498166][ T1231] ? snapshot_read.cold (user.c:?) [ 23.498174][ T1231] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 23.498179][ T1231] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 23.498182][ T1231] br_device_event (net/bridge/br.c:111) [ 23.498184][ T1231] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 23.498188][ T1231] ? packet_sendmsg_spkt (af_packet.c:?) [ 23.498194][ T1231] notifier_call_chain (kernel/notifier.c:85) [ 23.498200][ T1231] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 23.498205][ T1231] ? netif_change_name (net/core/dev.c:1517) [ 23.498209][ T1231] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 23.498212][ T1231] ? __kernel_text_address (kernel/extable.c:79) [ 23.498215][ T1231] ? write_profile (profile.c:?) [ 23.498220][ T1231] netif_change_flags (net/core/dev.c:9882) [ 23.498224][ T1231] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 23.498228][ T1231] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 23.498230][ T1231] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 23.498231][ T1231] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 23.498233][ T1231] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 23.498237][ T1231] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.498239][ T1231] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.498241][ T1231] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.498243][ T1231] ? kasan_save_stack (mm/kasan/common.c:58) [ 23.498246][ T1231] ? kasan_save_stack (mm/kasan/common.c:57) [ 23.498247][ T1231] ? kasan_save_track (mm/kasan/common.c:78) [ 23.498248][ T1231] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 23.498250][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.498252][ T1231] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 23.498255][ T1231] ? ___sys_sendmsg (net/socket.c:2758) [ 23.498259][ T1231] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.498261][ T1231] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.498264][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498266][ T1231] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.498267][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498269][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498270][ T1231] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 23.498273][ T1231] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 23.498274][ T1231] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 23.498276][ T1231] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.498278][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498281][ T1231] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 23.498282][ T1231] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.498284][ T1231] ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167) [ 23.498286][ T1231] ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167) [ 23.498287][ T1231] ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4527) [ 23.498290][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498292][ T1231] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 23.498298][ T1231] rtnl_newlink (net/core/rtnetlink.c:4215) [ 23.498304][ T1231] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.498306][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.498310][ T1231] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.498312][ T1231] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.498314][ T1231] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.498316][ T1231] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.498320][ T1231] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.498322][ T1231] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 23.498326][ T1231] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.498327][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.498332][ T1231] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.498334][ T1231] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.498338][ T1231] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 23.498341][ T1231] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.498344][ T1231] ? netlink_ack (./include/linux/skbuff.h:2718) [ 23.498350][ T1231] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 23.498352][ T1231] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 23.498357][ T1231] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 23.498361][ T1231] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 23.498364][ T1231] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.498368][ T1231] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 23.498372][ T1231] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 23.498376][ T1231] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.498378][ T1231] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 23.498384][ T1231] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 23.498387][ T1231] ____sys_sendmsg (net/socket.c:2713) [ 23.498389][ T1231] ? copy_msghdr_from_user (net/socket.c:2650) [ 23.498391][ T1231] ? sock_write_iter (net/socket.c:1269) [ 23.498393][ T1231] ? move_addr_to_kernel (net/socket.c:258) [ 23.498401][ T1231] ___sys_sendmsg (net/socket.c:2767) [ 23.498404][ T1231] ? copy_msghdr_from_user (net/socket.c:2619) [ 23.498420][ T1231] __sys_sendmsg (net/socket.c:2799) [ 23.498423][ T1231] ? __sys_sendmsg_sock (net/socket.c:2780) [ 23.498429][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.498433][ T1231] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 23.498436][ T1231] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 23.498438][ T1231] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 23.498441][ T1231] RIP: 0033:0x7f4b0287554e [ 23.498443][ T1231] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 23.498445][ T1231] RSP: 002b:00007ffe1aff9a60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 23.498448][ T1231] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4b0287554e [ 23.498449][ T1231] RDX: 0000000000000000 RSI: 00007ffe1aff9b10 RDI: 0000000000000005 [ 23.498450][ T1231] RBP: 00007ffe1aff9a70 R08: 0000000000000000 R09: 0000000000000000 [ 23.498451][ T1231] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e12e [ 23.498451][ T1231] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe1affa1d0 | [ 24.564087][ T1315] softirqs last disabled at (21420): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 24.564093][ T1315] Preemption disabled at: | [ 24.564095][ T1315] 0x0 | [ 24.564109][ T1315] Tainted: [W]=WARN [ 24.564110][ T1315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.564113][ T1315] Call Trace: [ 24.564115][ T1315] [ 24.564117][ T1315] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.564126][ T1315] __might_resched.cold (kernel/sched/core.c:9234) [ 24.564133][ T1315] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.564139][ T1315] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.564146][ T1315] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 24.564150][ T1315] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.564160][ T1315] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 24.564163][ T1315] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.564170][ T1315] put_chars (drivers/char/virtio_console.c:1176) [ 24.564174][ T1315] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.564176][ T1315] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.564182][ T1315] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.564192][ T1315] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.564204][ T1315] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.564209][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564212][ T1315] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.564220][ T1315] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.564226][ T1315] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.564229][ T1315] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 24.564234][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564238][ T1315] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.564245][ T1315] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.564252][ T1315] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.564255][ T1315] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.564265][ T1315] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.564270][ T1315] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.564272][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564276][ T1315] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 24.564282][ T1315] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.564285][ T1315] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.564290][ T1315] vprintk_emit (kernel/printk/printk.c:2479) [ 24.564296][ T1315] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.564300][ T1315] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.564303][ T1315] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.564311][ T1315] _printk (kernel/printk/printk.c:2504) [ 24.564317][ T1315] ? snapshot_read.cold (user.c:?) [ 24.564326][ T1315] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.564333][ T1315] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 24.564341][ T1315] br_init_port (net/bridge/br_stp_if.c:39) [ 24.564345][ T1315] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 24.564348][ T1315] br_device_event (net/bridge/br.c:120) [ 24.564353][ T1315] ? packet_sendmsg_spkt (af_packet.c:?) [ 24.564356][ T1315] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 24.564368][ T1315] notifier_call_chain (kernel/notifier.c:85) [ 24.564378][ T1315] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 24.564385][ T1315] ? netif_change_name (net/core/dev.c:1517) [ 24.564392][ T1315] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 24.564396][ T1315] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 24.564401][ T1315] ? __kernel_text_address (kernel/extable.c:79) [ 24.564403][ T1315] ? write_profile (profile.c:?) [ 24.564412][ T1315] netif_change_flags (net/core/dev.c:9882) [ 24.564418][ T1315] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 24.564425][ T1315] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 24.564428][ T1315] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 24.564430][ T1315] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 24.564434][ T1315] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 24.564439][ T1315] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.564442][ T1315] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.564446][ T1315] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.564450][ T1315] ? kasan_save_stack (mm/kasan/common.c:58) [ 24.564453][ T1315] ? kasan_save_stack (mm/kasan/common.c:57) [ 24.564455][ T1315] ? kasan_save_track (mm/kasan/common.c:78) [ 24.564457][ T1315] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 24.564462][ T1315] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.564465][ T1315] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 24.564469][ T1315] ? ___sys_sendmsg (net/socket.c:2758) [ 24.564475][ T1315] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.564479][ T1315] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.564483][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564487][ T1315] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.564489][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564491][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564494][ T1315] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 24.564498][ T1315] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 24.564502][ T1315] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 24.564506][ T1315] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.564512][ T1315] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 24.564519][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564523][ T1315] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 24.564533][ T1315] rtnl_newlink (net/core/rtnetlink.c:4215) [ 24.564543][ T1315] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.564546][ T1315] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.564555][ T1315] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.564558][ T1315] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.564561][ T1315] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.564565][ T1315] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.564572][ T1315] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.564575][ T1315] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 24.564581][ T1315] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.564583][ T1315] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.564591][ T1315] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.564594][ T1315] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.564601][ T1315] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 24.564604][ T1315] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.564609][ T1315] ? netlink_ack (./include/linux/skbuff.h:2718) [ 24.564621][ T1315] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 24.564624][ T1315] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 24.564633][ T1315] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 24.564640][ T1315] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.564644][ T1315] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.564652][ T1315] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 24.564659][ T1315] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.564672][ T1315] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.564675][ T1315] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 24.564683][ T1315] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 24.564688][ T1315] ____sys_sendmsg (net/socket.c:2713) [ 24.564692][ T1315] ? copy_msghdr_from_user (net/socket.c:2650) [ 24.564696][ T1315] ? sock_write_iter (net/socket.c:1269) [ 24.564699][ T1315] ? move_addr_to_kernel (net/socket.c:258) [ 24.564713][ T1315] ___sys_sendmsg (net/socket.c:2767) [ 24.564717][ T1315] ? copy_msghdr_from_user (net/socket.c:2619) [ 24.564750][ T1315] __sys_sendmsg (net/socket.c:2799) [ 24.564755][ T1315] ? __sys_sendmsg_sock (net/socket.c:2780) [ 24.564768][ T1315] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.564774][ T1315] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.564778][ T1315] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.564783][ T1315] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.564786][ T1315] RIP: 0033:0x7f9a1073c54e [ 24.564790][ T1315] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 24.564792][ T1315] RSP: 002b:00007ffc2c0a0b60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 24.564796][ T1315] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9a1073c54e [ 24.564798][ T1315] RDX: 0000000000000000 RSI: 00007ffc2c0a0c10 RDI: 0000000000000005 [ 24.564800][ T1315] RBP: 00007ffc2c0a0b70 R08: 0000000000000000 R09: 0000000000000000 [ 24.564801][ T1315] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e12f [ 24.564803][ T1315] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2c0a12d0 | [ 25.598937][ T1395] softirqs last disabled at (24132): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 25.598940][ T1395] Preemption disabled at: | [ 25.598940][ T1395] 0x0 | [ 25.598952][ T1395] Tainted: [W]=WARN [ 25.598953][ T1395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.598955][ T1395] Call Trace: [ 25.598956][ T1395] [ 25.598958][ T1395] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.598965][ T1395] __might_resched.cold (kernel/sched/core.c:9234) [ 25.598970][ T1395] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.598975][ T1395] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.598979][ T1395] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 25.598981][ T1395] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.598988][ T1395] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 25.598991][ T1395] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.598995][ T1395] put_chars (drivers/char/virtio_console.c:1176) [ 25.598997][ T1395] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.599004][ T1395] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.599012][ T1395] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.599015][ T1395] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.599020][ T1395] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.599024][ T1395] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.599026][ T1395] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 25.599030][ T1395] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.599033][ T1395] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.599037][ T1395] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.599041][ T1395] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.599043][ T1395] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.599049][ T1395] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.599052][ T1395] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.599054][ T1395] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.599056][ T1395] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 25.599060][ T1395] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.599062][ T1395] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.599064][ T1395] vprintk_emit (kernel/printk/printk.c:2479) [ 25.599068][ T1395] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.599069][ T1395] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 25.599072][ T1395] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.599074][ T1395] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.599079][ T1395] _printk (kernel/printk/printk.c:2504) [ 25.599082][ T1395] ? snapshot_read.cold (user.c:?) [ 25.599090][ T1395] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 25.599098][ T1395] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 25.599101][ T1395] br_device_event (net/bridge/br.c:111) [ 25.599104][ T1395] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 25.599108][ T1395] ? packet_sendmsg_spkt (af_packet.c:?) [ 25.599114][ T1395] notifier_call_chain (kernel/notifier.c:85) [ 25.599120][ T1395] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 25.599125][ T1395] ? netif_change_name (net/core/dev.c:1517) [ 25.599129][ T1395] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 25.599133][ T1395] ? __kernel_text_address (kernel/extable.c:79) [ 25.599135][ T1395] ? write_profile (profile.c:?) [ 25.599140][ T1395] netif_change_flags (net/core/dev.c:9882) [ 25.599144][ T1395] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 25.599148][ T1395] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.599150][ T1395] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.599151][ T1395] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.599153][ T1395] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.599157][ T1395] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.599159][ T1395] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.599161][ T1395] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.599164][ T1395] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.599166][ T1395] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.599167][ T1395] ? kasan_save_track (mm/kasan/common.c:78) [ 25.599168][ T1395] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.599171][ T1395] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.599173][ T1395] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.599176][ T1395] ? ___sys_sendmsg (net/socket.c:2758) [ 25.599180][ T1395] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.599182][ T1395] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.599185][ T1395] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.599187][ T1395] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.599188][ T1395] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.599189][ T1395] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.599191][ T1395] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.599194][ T1395] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 25.599195][ T1395] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.599197][ T1395] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.599200][ T1395] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.599204][ T1395] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.599206][ T1395] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.599212][ T1395] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.599218][ T1395] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.599220][ T1395] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.599224][ T1395] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.599226][ T1395] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.599229][ T1395] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.599230][ T1395] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.599234][ T1395] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.599237][ T1395] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.599240][ T1395] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.599241][ T1395] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.599246][ T1395] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.599248][ T1395] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.599252][ T1395] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.599255][ T1395] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.599258][ T1395] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.599265][ T1395] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 25.599267][ T1395] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 25.599272][ T1395] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.599276][ T1395] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.599279][ T1395] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.599283][ T1395] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.599288][ T1395] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.599292][ T1395] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.599293][ T1395] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.599299][ T1395] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.599302][ T1395] ____sys_sendmsg (net/socket.c:2713) [ 25.599304][ T1395] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.599307][ T1395] ? sock_write_iter (net/socket.c:1269) [ 25.599309][ T1395] ? move_addr_to_kernel (net/socket.c:258) [ 25.599316][ T1395] ___sys_sendmsg (net/socket.c:2767) [ 25.599319][ T1395] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.599336][ T1395] __sys_sendmsg (net/socket.c:2799) [ 25.599339][ T1395] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.599346][ T1395] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.599349][ T1395] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.599352][ T1395] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.599355][ T1395] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.599357][ T1395] RIP: 0033:0x7fd18aabb54e [ 25.599360][ T1395] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 25.599362][ T1395] RSP: 002b:00007ffc66818620 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.599365][ T1395] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd18aabb54e [ 25.599366][ T1395] RDX: 0000000000000000 RSI: 00007ffc668186d0 RDI: 0000000000000005 [ 25.599367][ T1395] RBP: 00007ffc66818630 R08: 0000000000000000 R09: 0000000000000000 [ 25.599368][ T1395] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e130 [ 25.599369][ T1395] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc66818d90 | [ 27.155282][ T1504] softirqs last disabled at (17468): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 27.155285][ T1504] Preemption disabled at: | [ 27.155285][ T1504] 0x0 | [ 27.155296][ T1504] Tainted: [W]=WARN [ 27.155297][ T1504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.155298][ T1504] Call Trace: [ 27.155300][ T1504] [ 27.155301][ T1504] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.155308][ T1504] __might_resched.cold (kernel/sched/core.c:9234) [ 27.155313][ T1504] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.155318][ T1504] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 27.155322][ T1504] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 27.155324][ T1504] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.155331][ T1504] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 27.155334][ T1504] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.155338][ T1504] put_chars (drivers/char/virtio_console.c:1176) [ 27.155340][ T1504] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.155347][ T1504] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.155355][ T1504] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.155358][ T1504] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.155363][ T1504] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.155367][ T1504] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.155369][ T1504] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 27.155372][ T1504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.155375][ T1504] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.155379][ T1504] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.155384][ T1504] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.155386][ T1504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.155391][ T1504] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.155394][ T1504] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.155396][ T1504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.155398][ T1504] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 27.155402][ T1504] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.155404][ T1504] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.155407][ T1504] vprintk_emit (kernel/printk/printk.c:2479) [ 27.155410][ T1504] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.155411][ T1504] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 27.155414][ T1504] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.155416][ T1504] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.155421][ T1504] _printk (kernel/printk/printk.c:2504) [ 27.155424][ T1504] ? snapshot_read.cold (user.c:?) [ 27.155432][ T1504] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 27.155437][ T1504] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 27.155441][ T1504] br_device_event (net/bridge/br.c:111) [ 27.155443][ T1504] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 27.155448][ T1504] ? packet_sendmsg_spkt (af_packet.c:?) [ 27.155454][ T1504] notifier_call_chain (kernel/notifier.c:85) [ 27.155460][ T1504] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 27.155465][ T1504] ? netif_change_name (net/core/dev.c:1517) [ 27.155469][ T1504] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 27.155472][ T1504] ? __kernel_text_address (kernel/extable.c:79) [ 27.155475][ T1504] ? write_profile (profile.c:?) [ 27.155480][ T1504] netif_change_flags (net/core/dev.c:9882) [ 27.155484][ T1504] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 27.155488][ T1504] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 27.155490][ T1504] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 27.155491][ T1504] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 27.155493][ T1504] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 27.155497][ T1504] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.155499][ T1504] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.155500][ T1504] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 27.155503][ T1504] ? kasan_save_stack (mm/kasan/common.c:58) [ 27.155505][ T1504] ? kasan_save_stack (mm/kasan/common.c:57) [ 27.155506][ T1504] ? kasan_save_track (mm/kasan/common.c:78) [ 27.155508][ T1504] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 27.155510][ T1504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.155512][ T1504] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 27.155515][ T1504] ? ___sys_sendmsg (net/socket.c:2758) [ 27.155519][ T1504] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.155521][ T1504] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 27.155524][ T1504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.155526][ T1504] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.155527][ T1504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.155529][ T1504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.155530][ T1504] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 27.155533][ T1504] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 27.155534][ T1504] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 27.155536][ T1504] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 27.155540][ T1504] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 27.155543][ T1504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.155546][ T1504] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 27.155551][ T1504] rtnl_newlink (net/core/rtnetlink.c:4215) [ 27.155557][ T1504] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.155559][ T1504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.155564][ T1504] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.155566][ T1504] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.155568][ T1504] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.155570][ T1504] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.155574][ T1504] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.155576][ T1504] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 27.155579][ T1504] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 27.155581][ T1504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.155585][ T1504] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.155587][ T1504] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.155591][ T1504] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 27.155594][ T1504] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 27.155597][ T1504] ? netlink_ack (./include/linux/skbuff.h:2718) [ 27.155604][ T1504] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 27.155606][ T1504] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 27.155611][ T1504] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 27.155615][ T1504] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 27.155618][ T1504] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.155622][ T1504] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 27.155627][ T1504] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 27.155631][ T1504] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.155632][ T1504] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 27.155638][ T1504] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 27.155641][ T1504] ____sys_sendmsg (net/socket.c:2713) [ 27.155643][ T1504] ? copy_msghdr_from_user (net/socket.c:2650) [ 27.155646][ T1504] ? sock_write_iter (net/socket.c:1269) [ 27.155647][ T1504] ? move_addr_to_kernel (net/socket.c:258) [ 27.155655][ T1504] ___sys_sendmsg (net/socket.c:2767) [ 27.155658][ T1504] ? copy_msghdr_from_user (net/socket.c:2619) [ 27.155682][ T1504] __sys_sendmsg (net/socket.c:2799) [ 27.155685][ T1504] ? __sys_sendmsg_sock (net/socket.c:2780) [ 27.155691][ T1504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.155694][ T1504] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 27.155697][ T1504] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 27.155700][ T1504] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 27.155703][ T1504] RIP: 0033:0x7ffbfb88054e [ 27.155705][ T1504] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 27.155707][ T1504] RSP: 002b:00007fff7d0c7700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 27.155710][ T1504] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ffbfb88054e [ 27.155711][ T1504] RDX: 0000000000000000 RSI: 00007fff7d0c77b0 RDI: 0000000000000005 [ 27.155712][ T1504] RBP: 00007fff7d0c7710 R08: 0000000000000000 R09: 0000000000000000 [ 27.155713][ T1504] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e132 [ 27.155714][ T1504] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff7d0c7e70 | [ 28.241962][ T1596] softirqs last disabled at (23300): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 28.241964][ T1596] Preemption disabled at: | [ 28.241965][ T1596] 0x0 | [ 28.241975][ T1596] Tainted: [W]=WARN [ 28.241976][ T1596] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.241978][ T1596] Call Trace: [ 28.241979][ T1596] [ 28.241981][ T1596] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.241988][ T1596] __might_resched.cold (kernel/sched/core.c:9234) [ 28.241992][ T1596] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.241997][ T1596] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.242002][ T1596] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 28.242004][ T1596] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.242010][ T1596] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 28.242013][ T1596] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.242017][ T1596] put_chars (drivers/char/virtio_console.c:1176) [ 28.242020][ T1596] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.242026][ T1596] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.242034][ T1596] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.242037][ T1596] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.242042][ T1596] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.242046][ T1596] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.242048][ T1596] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 28.242052][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.242055][ T1596] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.242059][ T1596] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.242063][ T1596] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.242065][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.242070][ T1596] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.242073][ T1596] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.242075][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.242077][ T1596] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 28.242081][ T1596] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.242083][ T1596] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.242086][ T1596] vprintk_emit (kernel/printk/printk.c:2479) [ 28.242089][ T1596] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.242090][ T1596] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 28.242095][ T1596] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.242097][ T1596] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.242102][ T1596] _printk (kernel/printk/printk.c:2504) [ 28.242105][ T1596] ? snapshot_read.cold (user.c:?) [ 28.242113][ T1596] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 28.242118][ T1596] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 28.242122][ T1596] br_device_event (net/bridge/br.c:111) [ 28.242124][ T1596] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 28.242128][ T1596] ? packet_sendmsg_spkt (af_packet.c:?) [ 28.242133][ T1596] notifier_call_chain (kernel/notifier.c:85) [ 28.242139][ T1596] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 28.242144][ T1596] ? netif_change_name (net/core/dev.c:1517) [ 28.242148][ T1596] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 28.242152][ T1596] ? __kernel_text_address (kernel/extable.c:79) [ 28.242154][ T1596] ? write_profile (profile.c:?) [ 28.242159][ T1596] netif_change_flags (net/core/dev.c:9882) [ 28.242163][ T1596] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 28.242167][ T1596] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.242169][ T1596] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.242170][ T1596] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.242172][ T1596] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.242175][ T1596] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.242177][ T1596] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.242179][ T1596] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.242182][ T1596] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.242184][ T1596] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.242185][ T1596] ? kasan_save_track (mm/kasan/common.c:78) [ 28.242186][ T1596] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.242189][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.242191][ T1596] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.242194][ T1596] ? ___sys_sendmsg (net/socket.c:2758) [ 28.242198][ T1596] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.242200][ T1596] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.242202][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.242204][ T1596] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.242206][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.242207][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.242209][ T1596] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.242211][ T1596] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 28.242212][ T1596] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.242214][ T1596] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.242218][ T1596] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.242221][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.242224][ T1596] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.242229][ T1596] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.242235][ T1596] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.242237][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.242241][ T1596] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.242243][ T1596] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.242245][ T1596] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.242247][ T1596] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.242251][ T1596] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.242253][ T1596] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.242256][ T1596] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.242258][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.242262][ T1596] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.242264][ T1596] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.242268][ T1596] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.242271][ T1596] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.242274][ T1596] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.242281][ T1596] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 28.242283][ T1596] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 28.242288][ T1596] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.242292][ T1596] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.242294][ T1596] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.242299][ T1596] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.242303][ T1596] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.242307][ T1596] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.242309][ T1596] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.242314][ T1596] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.242317][ T1596] ____sys_sendmsg (net/socket.c:2713) [ 28.242320][ T1596] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.242322][ T1596] ? sock_write_iter (net/socket.c:1269) [ 28.242324][ T1596] ? move_addr_to_kernel (net/socket.c:258) [ 28.242331][ T1596] ___sys_sendmsg (net/socket.c:2767) [ 28.242334][ T1596] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.242351][ T1596] __sys_sendmsg (net/socket.c:2799) [ 28.242354][ T1596] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.242360][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.242363][ T1596] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.242366][ T1596] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.242369][ T1596] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.242372][ T1596] RIP: 0033:0x7f85da80554e [ 28.242374][ T1596] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 28.242376][ T1596] RSP: 002b:00007fff0382d100 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.242379][ T1596] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f85da80554e [ 28.242380][ T1596] RDX: 0000000000000000 RSI: 00007fff0382d1b0 RDI: 0000000000000005 [ 28.242381][ T1596] RBP: 00007fff0382d110 R08: 0000000000000000 R09: 0000000000000000 [ 28.242382][ T1596] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e133 [ 28.242383][ T1596] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff0382d870 | [ 29.545699][ T1706] softirqs last disabled at (20592): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 29.545703][ T1706] Preemption disabled at: | [ 29.545704][ T1706] 0x0 | [ 29.545717][ T1706] Tainted: [W]=WARN [ 29.545718][ T1706] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.545721][ T1706] Call Trace: [ 29.545723][ T1706] [ 29.545725][ T1706] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.545735][ T1706] __might_resched.cold (kernel/sched/core.c:9234) [ 29.545741][ T1706] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.545747][ T1706] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 29.545754][ T1706] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 29.545758][ T1706] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.545767][ T1706] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 29.545771][ T1706] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.545778][ T1706] put_chars (drivers/char/virtio_console.c:1176) [ 29.545782][ T1706] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.545784][ T1706] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.545790][ T1706] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.545799][ T1706] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.545812][ T1706] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.545816][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.545820][ T1706] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.545827][ T1706] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.545833][ T1706] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.545836][ T1706] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 29.545842][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.545845][ T1706] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.545852][ T1706] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.545859][ T1706] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.545862][ T1706] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.545872][ T1706] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.545877][ T1706] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.545880][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.545883][ T1706] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 29.545889][ T1706] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.545892][ T1706] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.545897][ T1706] vprintk_emit (kernel/printk/printk.c:2479) [ 29.545903][ T1706] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.545906][ T1706] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.545910][ T1706] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.545917][ T1706] _printk (kernel/printk/printk.c:2504) [ 29.545923][ T1706] ? snapshot_read.cold (user.c:?) [ 29.545932][ T1706] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.545939][ T1706] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 29.545947][ T1706] br_init_port (net/bridge/br_stp_if.c:39) [ 29.545951][ T1706] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 29.545954][ T1706] br_device_event (net/bridge/br.c:120) [ 29.545960][ T1706] ? packet_sendmsg_spkt (af_packet.c:?) [ 29.545962][ T1706] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 29.545974][ T1706] notifier_call_chain (kernel/notifier.c:85) [ 29.545983][ T1706] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 29.545991][ T1706] ? netif_change_name (net/core/dev.c:1517) [ 29.545998][ T1706] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 29.546002][ T1706] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 29.546006][ T1706] ? __kernel_text_address (kernel/extable.c:79) [ 29.546009][ T1706] ? write_profile (profile.c:?) [ 29.546017][ T1706] netif_change_flags (net/core/dev.c:9882) [ 29.546024][ T1706] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 29.546031][ T1706] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 29.546034][ T1706] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 29.546036][ T1706] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 29.546040][ T1706] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 29.546045][ T1706] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.546048][ T1706] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.546051][ T1706] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.546055][ T1706] ? kasan_save_stack (mm/kasan/common.c:58) [ 29.546059][ T1706] ? kasan_save_stack (mm/kasan/common.c:57) [ 29.546061][ T1706] ? kasan_save_track (mm/kasan/common.c:78) [ 29.546063][ T1706] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 29.546067][ T1706] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.546070][ T1706] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 29.546075][ T1706] ? ___sys_sendmsg (net/socket.c:2758) [ 29.546081][ T1706] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.546085][ T1706] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.546089][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.546095][ T1706] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.546098][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.546100][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.546103][ T1706] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 29.546107][ T1706] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 29.546111][ T1706] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 29.546114][ T1706] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.546121][ T1706] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 29.546128][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.546132][ T1706] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 29.546142][ T1706] rtnl_newlink (net/core/rtnetlink.c:4215) [ 29.546152][ T1706] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.546155][ T1706] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.546164][ T1706] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.546167][ T1706] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.546170][ T1706] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.546173][ T1706] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.546180][ T1706] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.546184][ T1706] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 29.546190][ T1706] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.546192][ T1706] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.546200][ T1706] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.546203][ T1706] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.546209][ T1706] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 29.546213][ T1706] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.546218][ T1706] ? netlink_ack (./include/linux/skbuff.h:2718) [ 29.546230][ T1706] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 29.546233][ T1706] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 29.546241][ T1706] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 29.546248][ T1706] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 29.546253][ T1706] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.546261][ T1706] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 29.546268][ T1706] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 29.546274][ T1706] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.546277][ T1706] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 29.546286][ T1706] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 29.546291][ T1706] ____sys_sendmsg (net/socket.c:2713) [ 29.546295][ T1706] ? copy_msghdr_from_user (net/socket.c:2650) [ 29.546298][ T1706] ? sock_write_iter (net/socket.c:1269) [ 29.546301][ T1706] ? move_addr_to_kernel (net/socket.c:258) [ 29.546315][ T1706] ___sys_sendmsg (net/socket.c:2767) [ 29.546320][ T1706] ? copy_msghdr_from_user (net/socket.c:2619) [ 29.546350][ T1706] __sys_sendmsg (net/socket.c:2799) [ 29.546355][ T1706] ? __sys_sendmsg_sock (net/socket.c:2780) [ 29.546366][ T1706] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.546372][ T1706] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 29.546376][ T1706] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 29.546381][ T1706] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 29.546385][ T1706] RIP: 0033:0x7f73f4b5754e [ 29.546389][ T1706] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 29.546391][ T1706] RSP: 002b:00007fff14938af0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 29.546396][ T1706] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f73f4b5754e [ 29.546398][ T1706] RDX: 0000000000000000 RSI: 00007fff14938ba0 RDI: 0000000000000005 [ 29.546400][ T1706] RBP: 00007fff14938b00 R08: 0000000000000000 R09: 0000000000000000 [ 29.546401][ T1706] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e134 [ 29.546402][ T1706] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff14939260 | [ 30.693222][ T1770] softirqs last disabled at (15748): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 30.693224][ T1770] Preemption disabled at: | [ 30.693225][ T1770] 0x0 | [ 30.693235][ T1770] Tainted: [W]=WARN [ 30.693237][ T1770] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.693238][ T1770] Call Trace: [ 30.693240][ T1770] [ 30.693242][ T1770] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.693249][ T1770] __might_resched.cold (kernel/sched/core.c:9234) [ 30.693254][ T1770] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.693258][ T1770] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.693263][ T1770] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 30.693265][ T1770] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.693272][ T1770] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 30.693274][ T1770] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.693278][ T1770] put_chars (drivers/char/virtio_console.c:1176) [ 30.693281][ T1770] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.693288][ T1770] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.693296][ T1770] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.693299][ T1770] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.693304][ T1770] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.693308][ T1770] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.693310][ T1770] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 30.693313][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.693316][ T1770] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.693320][ T1770] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.693325][ T1770] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.693327][ T1770] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.693332][ T1770] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.693335][ T1770] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.693337][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.693339][ T1770] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 30.693343][ T1770] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.693345][ T1770] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.693348][ T1770] vprintk_emit (kernel/printk/printk.c:2479) [ 30.693351][ T1770] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.693353][ T1770] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 30.693355][ T1770] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.693357][ T1770] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.693362][ T1770] _printk (kernel/printk/printk.c:2504) [ 30.693366][ T1770] ? snapshot_read.cold (user.c:?) [ 30.693374][ T1770] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 30.693379][ T1770] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 30.693382][ T1770] br_device_event (net/bridge/br.c:111) [ 30.693384][ T1770] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 30.693388][ T1770] ? packet_sendmsg_spkt (af_packet.c:?) [ 30.693394][ T1770] notifier_call_chain (kernel/notifier.c:85) [ 30.693400][ T1770] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 30.693405][ T1770] ? netif_change_name (net/core/dev.c:1517) [ 30.693409][ T1770] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 30.693413][ T1770] ? __kernel_text_address (kernel/extable.c:79) [ 30.693415][ T1770] ? write_profile (profile.c:?) [ 30.693420][ T1770] netif_change_flags (net/core/dev.c:9882) [ 30.693424][ T1770] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 30.693427][ T1770] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 30.693430][ T1770] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 30.693431][ T1770] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 30.693433][ T1770] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 30.693437][ T1770] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.693439][ T1770] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.693441][ T1770] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.693443][ T1770] ? kasan_save_stack (mm/kasan/common.c:58) [ 30.693446][ T1770] ? kasan_save_stack (mm/kasan/common.c:57) [ 30.693447][ T1770] ? kasan_save_track (mm/kasan/common.c:78) [ 30.693448][ T1770] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 30.693451][ T1770] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.693453][ T1770] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 30.693455][ T1770] ? ___sys_sendmsg (net/socket.c:2758) [ 30.693460][ T1770] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.693462][ T1770] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.693465][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.693466][ T1770] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.693468][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.693469][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.693471][ T1770] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 30.693473][ T1770] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 30.693475][ T1770] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 30.693477][ T1770] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.693480][ T1770] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 30.693484][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.693486][ T1770] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 30.693492][ T1770] rtnl_newlink (net/core/rtnetlink.c:4215) [ 30.693497][ T1770] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.693499][ T1770] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.693504][ T1770] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.693506][ T1770] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.693508][ T1770] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.693510][ T1770] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.693514][ T1770] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.693516][ T1770] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 30.693519][ T1770] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.693521][ T1770] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.693525][ T1770] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.693527][ T1770] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.693531][ T1770] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 30.693534][ T1770] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.693537][ T1770] ? netlink_ack (./include/linux/skbuff.h:2718) [ 30.693544][ T1770] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 30.693546][ T1770] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 30.693550][ T1770] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 30.693555][ T1770] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 30.693557][ T1770] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.693562][ T1770] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 30.693566][ T1770] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 30.693570][ T1770] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.693571][ T1770] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 30.693577][ T1770] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 30.693580][ T1770] ____sys_sendmsg (net/socket.c:2713) [ 30.693582][ T1770] ? copy_msghdr_from_user (net/socket.c:2650) [ 30.693585][ T1770] ? sock_write_iter (net/socket.c:1269) [ 30.693586][ T1770] ? move_addr_to_kernel (net/socket.c:258) [ 30.693594][ T1770] ___sys_sendmsg (net/socket.c:2767) [ 30.693597][ T1770] ? copy_msghdr_from_user (net/socket.c:2619) [ 30.693613][ T1770] __sys_sendmsg (net/socket.c:2799) [ 30.693616][ T1770] ? __sys_sendmsg_sock (net/socket.c:2780) [ 30.693623][ T1770] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.693626][ T1770] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.693629][ T1770] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.693632][ T1770] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.693634][ T1770] RIP: 0033:0x7fd6ac16054e [ 30.693637][ T1770] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 30.693639][ T1770] RSP: 002b:00007ffe4cd30560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 30.693641][ T1770] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd6ac16054e [ 30.693643][ T1770] RDX: 0000000000000000 RSI: 00007ffe4cd30610 RDI: 0000000000000005 [ 30.693644][ T1770] RBP: 00007ffe4cd30570 R08: 0000000000000000 R09: 0000000000000000 [ 30.693644][ T1770] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e135 [ 30.693645][ T1770] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe4cd30cd0 | [ 31.760766][ T1862] softirqs last disabled at (17638): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 31.760768][ T1862] Preemption disabled at: | [ 31.760769][ T1862] 0x0 | [ 31.760780][ T1862] Tainted: [W]=WARN [ 31.760781][ T1862] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.760782][ T1862] Call Trace: [ 31.760784][ T1862] [ 31.760786][ T1862] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.760793][ T1862] __might_resched.cold (kernel/sched/core.c:9234) [ 31.760797][ T1862] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.760802][ T1862] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.760806][ T1862] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 31.760809][ T1862] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.760815][ T1862] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 31.760818][ T1862] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.760822][ T1862] put_chars (drivers/char/virtio_console.c:1176) [ 31.760825][ T1862] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.760831][ T1862] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.760839][ T1862] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.760842][ T1862] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.760847][ T1862] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.760851][ T1862] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.760853][ T1862] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 31.760856][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.760859][ T1862] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.760863][ T1862] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.760868][ T1862] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.760870][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.760875][ T1862] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.760878][ T1862] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.760880][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.760882][ T1862] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 31.760886][ T1862] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.760888][ T1862] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.760891][ T1862] vprintk_emit (kernel/printk/printk.c:2479) [ 31.760894][ T1862] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.760895][ T1862] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 31.760898][ T1862] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.760900][ T1862] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.760905][ T1862] _printk (kernel/printk/printk.c:2504) [ 31.760908][ T1862] ? snapshot_read.cold (user.c:?) [ 31.760916][ T1862] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 31.760921][ T1862] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 31.760925][ T1862] br_device_event (net/bridge/br.c:111) [ 31.760927][ T1862] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 31.760931][ T1862] ? packet_sendmsg_spkt (af_packet.c:?) [ 31.760937][ T1862] notifier_call_chain (kernel/notifier.c:85) [ 31.760943][ T1862] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 31.760948][ T1862] ? netif_change_name (net/core/dev.c:1517) [ 31.760952][ T1862] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 31.760955][ T1862] ? __kernel_text_address (kernel/extable.c:79) [ 31.760958][ T1862] ? write_profile (profile.c:?) [ 31.760963][ T1862] netif_change_flags (net/core/dev.c:9882) [ 31.760967][ T1862] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 31.760970][ T1862] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 31.760973][ T1862] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 31.760974][ T1862] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 31.760976][ T1862] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 31.760980][ T1862] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.760982][ T1862] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.760984][ T1862] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.760986][ T1862] ? kasan_save_stack (mm/kasan/common.c:58) [ 31.760988][ T1862] ? kasan_save_stack (mm/kasan/common.c:57) [ 31.760990][ T1862] ? kasan_save_track (mm/kasan/common.c:78) [ 31.760991][ T1862] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 31.760993][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.760995][ T1862] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 31.760999][ T1862] ? ___sys_sendmsg (net/socket.c:2758) [ 31.761002][ T1862] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.761005][ T1862] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.761007][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.761009][ T1862] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.761011][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.761012][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.761013][ T1862] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 31.761016][ T1862] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 31.761018][ T1862] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 31.761019][ T1862] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.761023][ T1862] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 31.761027][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.761029][ T1862] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 31.761034][ T1862] rtnl_newlink (net/core/rtnetlink.c:4215) [ 31.761040][ T1862] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.761042][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.761047][ T1862] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.761049][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.761051][ T1862] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.761053][ T1862] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.761057][ T1862] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.761059][ T1862] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 31.761062][ T1862] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.761063][ T1862] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.761068][ T1862] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.761070][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.761073][ T1862] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 31.761077][ T1862] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.761080][ T1862] ? netlink_ack (./include/linux/skbuff.h:2718) [ 31.761086][ T1862] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 31.761088][ T1862] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 31.761096][ T1862] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 31.761100][ T1862] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 31.761103][ T1862] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.761108][ T1862] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 31.761112][ T1862] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 31.761116][ T1862] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.761118][ T1862] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 31.761123][ T1862] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 31.761126][ T1862] ____sys_sendmsg (net/socket.c:2713) [ 31.761129][ T1862] ? copy_msghdr_from_user (net/socket.c:2650) [ 31.761131][ T1862] ? sock_write_iter (net/socket.c:1269) [ 31.761132][ T1862] ? move_addr_to_kernel (net/socket.c:258) [ 31.761140][ T1862] ___sys_sendmsg (net/socket.c:2767) [ 31.761143][ T1862] ? copy_msghdr_from_user (net/socket.c:2619) [ 31.761160][ T1862] __sys_sendmsg (net/socket.c:2799) [ 31.761163][ T1862] ? __sys_sendmsg_sock (net/socket.c:2780) [ 31.761170][ T1862] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.761173][ T1862] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.761176][ T1862] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.761179][ T1862] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.761182][ T1862] RIP: 0033:0x7fe9fd2f854e [ 31.761184][ T1862] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 31.761186][ T1862] RSP: 002b:00007ffe19326820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 31.761189][ T1862] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe9fd2f854e [ 31.761190][ T1862] RDX: 0000000000000000 RSI: 00007ffe193268d0 RDI: 0000000000000005 [ 31.761191][ T1862] RBP: 00007ffe19326830 R08: 0000000000000000 R09: 0000000000000000 [ 31.761192][ T1862] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e136 [ 31.761193][ T1862] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe19326f90 | [ 33.089834][ T112] softirqs last disabled at (67978): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 33.089837][ T112] Preemption disabled at: | [ 33.089838][ T112] 0x0 | [ 33.089848][ T112] Tainted: [W]=WARN [ 33.089848][ T112] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.089850][ T112] Workqueue: events_unbound linkwatch_event [ 33.089854][ T112] Call Trace: [ 33.089856][ T112] [ 33.089857][ T112] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.089863][ T112] __might_resched.cold (kernel/sched/core.c:9234) [ 33.089868][ T112] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.089873][ T112] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 33.089877][ T112] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 33.089879][ T112] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.089886][ T112] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 33.089888][ T112] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.089892][ T112] put_chars (drivers/char/virtio_console.c:1176) [ 33.089895][ T112] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.089898][ T112] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.089901][ T112] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.089904][ T112] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.089908][ T112] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.089912][ T112] ? mark_usage (kernel/locking/lockdep.c:4690) [ 33.089914][ T112] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.089915][ T112] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.089920][ T112] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.089922][ T112] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.089926][ T112] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.089930][ T112] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.089934][ T112] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.089936][ T112] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 33.089940][ T112] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.089942][ T112] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.089946][ T112] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.089950][ T112] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.089952][ T112] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.089958][ T112] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.089961][ T112] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.089963][ T112] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.089964][ T112] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 33.089968][ T112] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.089970][ T112] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.089973][ T112] vprintk_emit (kernel/printk/printk.c:2479) [ 33.089976][ T112] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.089978][ T112] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.089980][ T112] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.089984][ T112] _printk (kernel/printk/printk.c:2504) [ 33.089988][ T112] ? snapshot_read.cold (user.c:?) [ 33.089993][ T112] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.089997][ T112] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 33.090002][ T112] br_init_port (net/bridge/br_stp_if.c:39) [ 33.090004][ T112] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 33.090006][ T112] br_port_carrier_check (net/bridge/br_if.c:90) [ 33.090010][ T112] br_device_event (net/bridge/br.c:101) [ 33.090014][ T112] ? packet_sendmsg_spkt (af_packet.c:?) [ 33.090015][ T112] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 33.090022][ T112] notifier_call_chain (kernel/notifier.c:85) [ 33.090028][ T112] netif_state_change (net/core/dev.c:1625) [ 33.090033][ T112] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 33.090038][ T112] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 33.090040][ T112] __linkwatch_run_queue (net/core/link_watch.c:240) [ 33.090043][ T112] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 33.090046][ T112] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.090051][ T112] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 33.090053][ T112] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 33.090056][ T112] process_one_work (kernel/workqueue.c:3387) [ 33.090063][ T112] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 33.090066][ T112] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.090074][ T112] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 33.090081][ T112] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.090083][ T112] kthread (kernel/kthread.c:436) [ 33.090085][ T112] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 33.090089][ T112] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.090097][ T112] ret_from_fork (arch/x86/kernel/process.c:158) [ 33.090102][ T112] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 33.090104][ T112] ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22)) [ 33.090108][ T112] ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144) [ 33.090110][ T112] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 33.090113][ T112] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.090116][ T112] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 34.536347][ T2098] softirqs last disabled at (22030): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 34.536350][ T2098] Preemption disabled at: | [ 34.536350][ T2098] 0x0 | [ 34.536361][ T2098] Tainted: [W]=WARN [ 34.536362][ T2098] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.536364][ T2098] Call Trace: [ 34.536366][ T2098] [ 34.536368][ T2098] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.536374][ T2098] __might_resched.cold (kernel/sched/core.c:9234) [ 34.536379][ T2098] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.536383][ T2098] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.536388][ T2098] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 34.536390][ T2098] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.536397][ T2098] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 34.536400][ T2098] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.536404][ T2098] put_chars (drivers/char/virtio_console.c:1176) [ 34.536406][ T2098] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.536407][ T2098] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.536411][ T2098] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.536417][ T2098] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.536425][ T2098] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.536427][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536429][ T2098] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.536434][ T2098] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.536438][ T2098] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.536440][ T2098] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 34.536443][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536445][ T2098] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.536449][ T2098] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.536453][ T2098] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.536455][ T2098] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.536461][ T2098] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.536464][ T2098] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.536466][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536467][ T2098] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 34.536471][ T2098] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.536473][ T2098] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.536476][ T2098] vprintk_emit (kernel/printk/printk.c:2479) [ 34.536479][ T2098] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.536481][ T2098] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.536483][ T2098] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.536488][ T2098] _printk (kernel/printk/printk.c:2504) [ 34.536491][ T2098] ? snapshot_read.cold (user.c:?) [ 34.536497][ T2098] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.536501][ T2098] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.536506][ T2098] br_init_port (net/bridge/br_stp_if.c:39) [ 34.536508][ T2098] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 34.536510][ T2098] br_device_event (net/bridge/br.c:120) [ 34.536513][ T2098] ? packet_sendmsg_spkt (af_packet.c:?) [ 34.536515][ T2098] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 34.536522][ T2098] notifier_call_chain (kernel/notifier.c:85) [ 34.536528][ T2098] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 34.536533][ T2098] ? netif_change_name (net/core/dev.c:1517) [ 34.536537][ T2098] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 34.536540][ T2098] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 34.536543][ T2098] ? __kernel_text_address (kernel/extable.c:79) [ 34.536544][ T2098] ? write_profile (profile.c:?) [ 34.536549][ T2098] netif_change_flags (net/core/dev.c:9882) [ 34.536554][ T2098] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 34.536557][ T2098] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 34.536559][ T2098] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 34.536561][ T2098] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 34.536563][ T2098] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 34.536566][ T2098] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.536568][ T2098] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.536570][ T2098] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.536572][ T2098] ? kasan_save_stack (mm/kasan/common.c:58) [ 34.536575][ T2098] ? kasan_save_stack (mm/kasan/common.c:57) [ 34.536576][ T2098] ? kasan_save_track (mm/kasan/common.c:78) [ 34.536577][ T2098] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 34.536580][ T2098] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.536581][ T2098] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 34.536584][ T2098] ? ___sys_sendmsg (net/socket.c:2758) [ 34.536588][ T2098] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.536590][ T2098] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.536593][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536595][ T2098] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.536596][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536598][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536599][ T2098] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 34.536602][ T2098] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 34.536604][ T2098] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 34.536606][ T2098] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.536610][ T2098] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 34.536614][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536616][ T2098] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 34.536621][ T2098] rtnl_newlink (net/core/rtnetlink.c:4215) [ 34.536627][ T2098] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.536629][ T2098] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.536633][ T2098] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.536635][ T2098] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.536638][ T2098] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.536639][ T2098] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.536643][ T2098] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.536645][ T2098] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 34.536649][ T2098] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.536650][ T2098] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.536655][ T2098] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.536657][ T2098] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.536665][ T2098] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 34.536667][ T2098] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.536670][ T2098] ? netlink_ack (./include/linux/skbuff.h:2718) [ 34.536677][ T2098] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 34.536679][ T2098] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 34.536684][ T2098] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 34.536688][ T2098] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.536690][ T2098] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.536695][ T2098] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 34.536699][ T2098] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.536703][ T2098] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.536705][ T2098] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 34.536711][ T2098] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 34.536714][ T2098] ____sys_sendmsg (net/socket.c:2713) [ 34.536716][ T2098] ? copy_msghdr_from_user (net/socket.c:2650) [ 34.536718][ T2098] ? sock_write_iter (net/socket.c:1269) [ 34.536720][ T2098] ? move_addr_to_kernel (net/socket.c:258) [ 34.536728][ T2098] ___sys_sendmsg (net/socket.c:2767) [ 34.536731][ T2098] ? copy_msghdr_from_user (net/socket.c:2619) [ 34.536747][ T2098] __sys_sendmsg (net/socket.c:2799) [ 34.536750][ T2098] ? __sys_sendmsg_sock (net/socket.c:2780) [ 34.536757][ T2098] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.536760][ T2098] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 34.536763][ T2098] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 34.536766][ T2098] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 34.536768][ T2098] RIP: 0033:0x7f3e7b66154e [ 34.536771][ T2098] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 34.536774][ T2098] RSP: 002b:00007fff89814280 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 34.536777][ T2098] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3e7b66154e [ 34.536778][ T2098] RDX: 0000000000000000 RSI: 00007fff89814330 RDI: 0000000000000005 [ 34.536779][ T2098] RBP: 00007fff89814290 R08: 0000000000000000 R09: 0000000000000000 [ 34.536780][ T2098] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e139 [ 34.536781][ T2098] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff898149f0 | [ 36.068486][ T471] softirqs last disabled at (171402): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 36.068489][ T471] Preemption disabled at: | [ 36.068490][ T471] 0x0 | [ 36.068500][ T471] Tainted: [W]=WARN [ 36.068501][ T471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 36.068503][ T471] Workqueue: events_unbound linkwatch_event [ 36.068506][ T471] Call Trace: [ 36.068508][ T471] [ 36.068509][ T471] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 36.068516][ T471] __might_resched.cold (kernel/sched/core.c:9234) [ 36.068520][ T471] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 36.068524][ T471] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 36.068529][ T471] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 36.068531][ T471] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.068537][ T471] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 36.068540][ T471] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.068544][ T471] put_chars (drivers/char/virtio_console.c:1176) [ 36.068547][ T471] ? __send_to_port (drivers/char/virtio_console.c:654) [ 36.068549][ T471] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.068553][ T471] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.068556][ T471] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 36.068560][ T471] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 36.068563][ T471] ? mark_usage (kernel/locking/lockdep.c:4690) [ 36.068565][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.068567][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.068571][ T471] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 36.068573][ T471] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.068578][ T471] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.068582][ T471] console_emit_next_record (kernel/printk/printk.c:3183) [ 36.068586][ T471] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 36.068588][ T471] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 36.068591][ T471] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.068593][ T471] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.068597][ T471] console_flush_one_record (kernel/printk/printk.c:3268) [ 36.068602][ T471] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 36.068604][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.068609][ T471] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 36.068612][ T471] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 36.068614][ T471] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.068616][ T471] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 36.068620][ T471] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 36.068622][ T471] ? vprintk_emit (kernel/printk/printk.c:2478) [ 36.068625][ T471] vprintk_emit (kernel/printk/printk.c:2479) [ 36.068628][ T471] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 36.068630][ T471] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.068632][ T471] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.068636][ T471] _printk (kernel/printk/printk.c:2504) [ 36.068639][ T471] ? snapshot_read.cold (user.c:?) [ 36.068644][ T471] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.068648][ T471] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 36.068653][ T471] br_init_port (net/bridge/br_stp_if.c:39) [ 36.068655][ T471] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 36.068657][ T471] br_port_carrier_check (net/bridge/br_if.c:90) [ 36.068666][ T471] br_device_event (net/bridge/br.c:101) [ 36.068669][ T471] ? packet_sendmsg_spkt (af_packet.c:?) [ 36.068671][ T471] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 36.068677][ T471] notifier_call_chain (kernel/notifier.c:85) [ 36.068683][ T471] netif_state_change (net/core/dev.c:1625) [ 36.068688][ T471] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 36.068693][ T471] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 36.068695][ T471] __linkwatch_run_queue (net/core/link_watch.c:240) [ 36.068698][ T471] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 36.068701][ T471] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.068705][ T471] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 36.068708][ T471] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 36.068711][ T471] process_one_work (kernel/workqueue.c:3387) [ 36.068718][ T471] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 36.068721][ T471] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.068729][ T471] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 36.068733][ T471] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 36.068735][ T471] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 36.068738][ T471] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 36.068741][ T471] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 36.068743][ T471] kthread (kernel/kthread.c:436) [ 36.068745][ T471] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 36.068749][ T471] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.068752][ T471] ret_from_fork (arch/x86/kernel/process.c:158) [ 36.068756][ T471] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 36.068758][ T471] ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22)) [ 36.068762][ T471] ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144) [ 36.068764][ T471] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 36.068766][ T471] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.068769][ T471] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 37.074112][ T58] softirqs last disabled at (167330): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 37.074114][ T58] Preemption disabled at: | [ 37.074115][ T58] 0x0 | [ 37.074126][ T58] Tainted: [W]=WARN [ 37.074128][ T58] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.074129][ T58] Workqueue: events_unbound linkwatch_event [ 37.074133][ T58] Call Trace: [ 37.074135][ T58] [ 37.074136][ T58] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 37.074143][ T58] __might_resched.cold (kernel/sched/core.c:9234) [ 37.074148][ T58] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 37.074153][ T58] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 37.074157][ T58] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 37.074159][ T58] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.074166][ T58] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 37.074169][ T58] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.074173][ T58] put_chars (drivers/char/virtio_console.c:1176) [ 37.074176][ T58] ? __send_to_port (drivers/char/virtio_console.c:654) [ 37.074178][ T58] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.074182][ T58] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.074185][ T58] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 37.074189][ T58] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 37.074193][ T58] ? mark_usage (kernel/locking/lockdep.c:4690) [ 37.074195][ T58] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.074196][ T58] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.074201][ T58] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 37.074203][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.074207][ T58] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.074211][ T58] console_emit_next_record (kernel/printk/printk.c:3183) [ 37.074216][ T58] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 37.074218][ T58] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 37.074221][ T58] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.074223][ T58] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.074227][ T58] console_flush_one_record (kernel/printk/printk.c:3268) [ 37.074232][ T58] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 37.074234][ T58] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.074240][ T58] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 37.074243][ T58] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 37.074245][ T58] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.074246][ T58] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 37.074250][ T58] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 37.074252][ T58] ? vprintk_emit (kernel/printk/printk.c:2478) [ 37.074255][ T58] vprintk_emit (kernel/printk/printk.c:2479) [ 37.074258][ T58] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 37.074260][ T58] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.074262][ T58] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.074266][ T58] _printk (kernel/printk/printk.c:2504) [ 37.074270][ T58] ? snapshot_read.cold (user.c:?) [ 37.074276][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.074279][ T58] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 37.074284][ T58] br_init_port (net/bridge/br_stp_if.c:39) [ 37.074287][ T58] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 37.074289][ T58] br_port_carrier_check (net/bridge/br_if.c:90) [ 37.074293][ T58] br_device_event (net/bridge/br.c:101) [ 37.074296][ T58] ? packet_sendmsg_spkt (af_packet.c:?) [ 37.074297][ T58] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 37.074304][ T58] notifier_call_chain (kernel/notifier.c:85) [ 37.074311][ T58] netif_state_change (net/core/dev.c:1625) [ 37.074315][ T58] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 37.074320][ T58] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 37.074323][ T58] __linkwatch_run_queue (net/core/link_watch.c:240) [ 37.074326][ T58] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 37.074328][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.074333][ T58] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 37.074335][ T58] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 37.074339][ T58] process_one_work (kernel/workqueue.c:3387) [ 37.074345][ T58] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 37.074348][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.074356][ T58] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 37.074364][ T58] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 37.074366][ T58] kthread (kernel/kthread.c:436) [ 37.074368][ T58] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 37.074372][ T58] ? kthread_affine_preferred (kernel/kthread.c:857) [ 37.074375][ T58] ret_from_fork (arch/x86/kernel/process.c:158) [ 37.074379][ T58] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 37.074382][ T58] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 37.074386][ T58] ? kthread_affine_preferred (kernel/kthread.c:857) [ 37.074389][ T58] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 38.529314][ T36] softirqs last disabled at (321068): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 38.529318][ T36] Preemption disabled at: | [ 38.529319][ T36] 0x0 | [ 38.529332][ T36] Tainted: [W]=WARN [ 38.529333][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.529336][ T36] Workqueue: events_unbound linkwatch_event [ 38.529340][ T36] Call Trace: [ 38.529342][ T36] [ 38.529344][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.529352][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 38.529359][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.529364][ T36] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 38.529371][ T36] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 38.529374][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.529384][ T36] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 38.529387][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.529393][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 38.529397][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.529402][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.529407][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.529411][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.529418][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.529423][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 38.529426][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.529428][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.529436][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.529438][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.529446][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.529454][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.529460][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.529463][ T36] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 38.529468][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.529471][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.529479][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.529486][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.529489][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.529499][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.529503][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.529506][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.529509][ T36] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 38.529515][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.529518][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.529523][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 38.529529][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.529533][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.529536][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.529543][ T36] _printk (kernel/printk/printk.c:2504) [ 38.529547][ T36] ? snapshot_read.cold (user.c:?) [ 38.529557][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.529564][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 38.529571][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 38.529575][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 38.529578][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 38.529584][ T36] br_device_event (net/bridge/br.c:101) [ 38.529589][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 38.529592][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 38.529603][ T36] notifier_call_chain (kernel/notifier.c:85) [ 38.529613][ T36] netif_state_change (net/core/dev.c:1625) [ 38.529620][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 38.529629][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 38.529632][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 38.529638][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 38.529642][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.529650][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 38.529654][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 38.529664][ T36] process_one_work (kernel/workqueue.c:3387) [ 38.529676][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 38.529681][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.529696][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 38.529709][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 38.529712][ T36] kthread (kernel/kthread.c:436) [ 38.529715][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 38.529719][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.529724][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 38.529731][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 38.529737][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 38.529741][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.529746][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 40.088018][ T58] softirqs last disabled at (190464): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 40.088021][ T58] Preemption disabled at: | [ 40.088022][ T58] 0x0 | [ 40.088032][ T58] Tainted: [W]=WARN [ 40.088033][ T58] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.088035][ T58] Workqueue: events_unbound linkwatch_event [ 40.088038][ T58] Call Trace: [ 40.088040][ T58] [ 40.088042][ T58] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 40.088048][ T58] __might_resched.cold (kernel/sched/core.c:9234) [ 40.088053][ T58] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 40.088057][ T58] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 40.088062][ T58] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 40.088063][ T58] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.088070][ T58] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 40.088072][ T58] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.088076][ T58] put_chars (drivers/char/virtio_console.c:1176) [ 40.088079][ T58] ? __send_to_port (drivers/char/virtio_console.c:654) [ 40.088082][ T58] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.088085][ T58] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.088087][ T58] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 40.088095][ T58] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 40.088100][ T58] ? mark_usage (kernel/locking/lockdep.c:4690) [ 40.088102][ T58] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.088103][ T58] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.088108][ T58] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 40.088110][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.088115][ T58] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.088119][ T58] console_emit_next_record (kernel/printk/printk.c:3183) [ 40.088123][ T58] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 40.088125][ T58] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 40.088128][ T58] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.088130][ T58] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.088135][ T58] console_flush_one_record (kernel/printk/printk.c:3268) [ 40.088139][ T58] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 40.088141][ T58] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.088147][ T58] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 40.088150][ T58] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 40.088152][ T58] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.088153][ T58] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 40.088157][ T58] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 40.088159][ T58] ? vprintk_emit (kernel/printk/printk.c:2478) [ 40.088162][ T58] vprintk_emit (kernel/printk/printk.c:2479) [ 40.088165][ T58] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 40.088168][ T58] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.088170][ T58] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.088173][ T58] _printk (kernel/printk/printk.c:2504) [ 40.088177][ T58] ? snapshot_read.cold (user.c:?) [ 40.088182][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.088186][ T58] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 40.088191][ T58] br_init_port (net/bridge/br_stp_if.c:39) [ 40.088193][ T58] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 40.088195][ T58] br_port_carrier_check (net/bridge/br_if.c:90) [ 40.088199][ T58] br_device_event (net/bridge/br.c:101) [ 40.088202][ T58] ? packet_sendmsg_spkt (af_packet.c:?) [ 40.088204][ T58] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 40.088211][ T58] notifier_call_chain (kernel/notifier.c:85) [ 40.088217][ T58] netif_state_change (net/core/dev.c:1625) [ 40.088222][ T58] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 40.088227][ T58] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 40.088229][ T58] __linkwatch_run_queue (net/core/link_watch.c:240) [ 40.088233][ T58] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 40.088236][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.088242][ T58] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 40.088244][ T58] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 40.088248][ T58] process_one_work (kernel/workqueue.c:3387) [ 40.088255][ T58] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 40.088258][ T58] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.088266][ T58] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 40.088273][ T58] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 40.088275][ T58] kthread (kernel/kthread.c:436) [ 40.088277][ T58] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 40.088281][ T58] ? kthread_affine_preferred (kernel/kthread.c:857) [ 40.088284][ T58] ret_from_fork (arch/x86/kernel/process.c:158) [ 40.088288][ T58] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 40.088291][ T58] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 40.088295][ T58] ? kthread_affine_preferred (kernel/kthread.c:857) [ 40.088298][ T58] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 41.088657][ T536] softirqs last disabled at (138136): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 41.088666][ T536] Preemption disabled at: | [ 41.088666][ T536] 0x0 | [ 41.088678][ T536] Tainted: [W]=WARN [ 41.088679][ T536] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.088681][ T536] Workqueue: events_unbound linkwatch_event [ 41.088684][ T536] Call Trace: [ 41.088686][ T536] [ 41.088688][ T536] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 41.088695][ T536] __might_resched.cold (kernel/sched/core.c:9234) [ 41.088700][ T536] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 41.088705][ T536] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 41.088710][ T536] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 41.088713][ T536] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 41.088720][ T536] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 41.088722][ T536] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 41.088727][ T536] put_chars (drivers/char/virtio_console.c:1176) [ 41.088729][ T536] ? __send_to_port (drivers/char/virtio_console.c:654) [ 41.088733][ T536] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 41.088736][ T536] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 41.088739][ T536] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 41.088745][ T536] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 41.088749][ T536] ? mark_usage (kernel/locking/lockdep.c:4690) [ 41.088751][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.088753][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.088758][ T536] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 41.088760][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.088766][ T536] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.088771][ T536] console_emit_next_record (kernel/printk/printk.c:3183) [ 41.088776][ T536] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 41.088778][ T536] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 41.088782][ T536] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.088784][ T536] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.088789][ T536] console_flush_one_record (kernel/printk/printk.c:3268) [ 41.088794][ T536] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 41.088796][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.088802][ T536] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 41.088805][ T536] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 41.088808][ T536] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.088810][ T536] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 41.088814][ T536] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 41.088816][ T536] ? vprintk_emit (kernel/printk/printk.c:2478) [ 41.088820][ T536] vprintk_emit (kernel/printk/printk.c:2479) [ 41.088823][ T536] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 41.088826][ T536] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 41.088828][ T536] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 41.088833][ T536] _printk (kernel/printk/printk.c:2504) [ 41.088837][ T536] ? snapshot_read.cold (user.c:?) [ 41.088843][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.088847][ T536] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 41.088853][ T536] br_init_port (net/bridge/br_stp_if.c:39) [ 41.088855][ T536] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 41.088858][ T536] br_port_carrier_check (net/bridge/br_if.c:90) [ 41.088862][ T536] br_device_event (net/bridge/br.c:101) [ 41.088866][ T536] ? packet_sendmsg_spkt (af_packet.c:?) [ 41.088868][ T536] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 41.088876][ T536] notifier_call_chain (kernel/notifier.c:85) [ 41.088883][ T536] netif_state_change (net/core/dev.c:1625) [ 41.088888][ T536] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 41.088894][ T536] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 41.088896][ T536] __linkwatch_run_queue (net/core/link_watch.c:240) [ 41.088900][ T536] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 41.088903][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.088909][ T536] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 41.088911][ T536] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 41.088915][ T536] process_one_work (kernel/workqueue.c:3387) [ 41.088923][ T536] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 41.088927][ T536] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.088936][ T536] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 41.088941][ T536] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 41.088943][ T536] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 41.088947][ T536] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 41.088950][ T536] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 41.088953][ T536] kthread (kernel/kthread.c:436) [ 41.088955][ T536] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 41.088959][ T536] ? kthread_affine_preferred (kernel/kthread.c:857) [ 41.088962][ T536] ret_from_fork (arch/x86/kernel/process.c:158) [ 41.088967][ T536] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 41.088971][ T536] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 41.088975][ T536] ? kthread_affine_preferred (kernel/kthread.c:857) [ 41.088978][ T536] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 42.238231][ T2685] softirqs last disabled at (14350): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 42.238235][ T2685] Preemption disabled at: | [ 42.238236][ T2685] vprintk_emit (kernel/printk/printk.c:2471) | [ 42.238248][ T2685] Tainted: [W]=WARN [ 42.238249][ T2685] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.238252][ T2685] Call Trace: [ 42.238254][ T2685] [ 42.238256][ T2685] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 42.238264][ T2685] ? vprintk_emit (kernel/printk/printk.c:2471) [ 42.238267][ T2685] __might_resched.cold (kernel/sched/core.c:9234) [ 42.238273][ T2685] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 42.238279][ T2685] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 42.238286][ T2685] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 42.238289][ T2685] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.238299][ T2685] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 42.238303][ T2685] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.238309][ T2685] put_chars (drivers/char/virtio_console.c:1176) [ 42.238313][ T2685] ? __send_to_port (drivers/char/virtio_console.c:654) [ 42.238318][ T2685] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 42.238328][ T2685] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 42.238340][ T2685] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 42.238345][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238349][ T2685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.238357][ T2685] console_emit_next_record (kernel/printk/printk.c:3183) [ 42.238364][ T2685] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 42.238366][ T2685] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 42.238372][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238375][ T2685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.238382][ T2685] console_flush_one_record (kernel/printk/printk.c:3268) [ 42.238389][ T2685] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 42.238392][ T2685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.238402][ T2685] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 42.238407][ T2685] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 42.238410][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238413][ T2685] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 42.238419][ T2685] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 42.238422][ T2685] ? vprintk_emit (kernel/printk/printk.c:2478) [ 42.238427][ T2685] vprintk_emit (kernel/printk/printk.c:2479) [ 42.238433][ T2685] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 42.238435][ T2685] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 42.238438][ T2685] ? netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 42.238442][ T2685] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 42.238444][ T2685] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 42.238447][ T2685] ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 42.238451][ T2685] ? ____sys_sendmsg (net/socket.c:2713) [ 42.238453][ T2685] ? ___sys_sendmsg (net/socket.c:2767) [ 42.238459][ T2685] _printk (kernel/printk/printk.c:2504) [ 42.238465][ T2685] ? snapshot_read.cold (user.c:?) [ 42.238472][ T2685] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 42.238478][ T2685] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 42.238484][ T2685] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 42.238488][ T2685] ? netdev_notice (net/core/dev.c:13194) [ 42.238496][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238499][ T2685] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 42.238504][ T2685] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 42.238507][ T2685] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 42.238511][ T2685] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 42.238518][ T2685] dev_set_allmulti (net/core/dev_api.c:315) [ 42.238524][ T2685] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 42.238534][ T2685] br_del_if (net/bridge/br_if.c:732) [ 42.238537][ T2685] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 42.238542][ T2685] do_set_master (net/core/rtnetlink.c:3055) [ 42.238545][ T2685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.238551][ T2685] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 42.238556][ T2685] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.238561][ T2685] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 42.238564][ T2685] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 42.238568][ T2685] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 42.238571][ T2685] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 42.238575][ T2685] ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167) [ 42.238578][ T2685] ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167) [ 42.238581][ T2685] ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4527) [ 42.238583][ T2685] ? irqentry_enter (./include/linux/irq-entry-common.h:439 kernel/entry/common.c:120) [ 42.238586][ T2685] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37)) [ 42.238588][ T2685] ? kasan_save_stack (mm/kasan/common.c:57) [ 42.238601][ T2685] ? lock_acquire.part.0 (./arch/x86/include/asm/irqflags.h:158 (discriminator 1) kernel/locking/lockdep.c:5912 (discriminator 1)) [ 42.238607][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238610][ T2685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.238612][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238614][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238617][ T2685] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 42.238621][ T2685] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 42.238624][ T2685] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 42.238628][ T2685] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 42.238634][ T2685] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 42.238636][ T2685] ? nla_get_range_signed (lib/nlattr.c:270) [ 42.238645][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238649][ T2685] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 42.238664][ T2685] rtnl_newlink (net/core/rtnetlink.c:4215) [ 42.238674][ T2685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 42.238678][ T2685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.238686][ T2685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.238689][ T2685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 42.238693][ T2685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 42.238696][ T2685] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.238703][ T2685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 42.238706][ T2685] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 42.238712][ T2685] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 42.238714][ T2685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.238723][ T2685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.238726][ T2685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 42.238732][ T2685] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 42.238735][ T2685] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 42.238740][ T2685] ? netlink_ack (./include/linux/skbuff.h:2718) [ 42.238752][ T2685] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 42.238756][ T2685] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 42.238764][ T2685] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 42.238771][ T2685] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 42.238775][ T2685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 42.238783][ T2685] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 42.238790][ T2685] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 42.238797][ T2685] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.238799][ T2685] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 42.238808][ T2685] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 42.238813][ T2685] ____sys_sendmsg (net/socket.c:2713) [ 42.238817][ T2685] ? copy_msghdr_from_user (net/socket.c:2650) [ 42.238821][ T2685] ? sock_write_iter (net/socket.c:1269) [ 42.238823][ T2685] ? move_addr_to_kernel (net/socket.c:258) [ 42.238837][ T2685] ___sys_sendmsg (net/socket.c:2767) [ 42.238842][ T2685] ? copy_msghdr_from_user (net/socket.c:2619) [ 42.238871][ T2685] __sys_sendmsg (net/socket.c:2799) [ 42.238876][ T2685] ? __sys_sendmsg_sock (net/socket.c:2780) [ 42.238888][ T2685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.238894][ T2685] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 42.238898][ T2685] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 42.238902][ T2685] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 42.238906][ T2685] RIP: 0033:0x7f2c914e954e [ 42.238912][ T2685] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 42.238915][ T2685] RSP: 002b:00007fffee64be40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 42.238920][ T2685] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2c914e954e [ 42.238923][ T2685] RDX: 0000000000000000 RSI: 00007fffee64bef0 RDI: 0000000000000005 [ 42.238924][ T2685] RBP: 00007fffee64be50 R08: 0000000000000000 R09: 0000000000000000 [ 42.238925][ T2685] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e141 Finger prints: br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars