====================================== | [ 10.286710][ T235] softirqs last disabled at (16390): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 10.286712][ T235] Preemption disabled at: | [ 10.286713][ T235] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.286723][ T235] Tainted: [W]=WARN [ 10.286723][ T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.286727][ T235] Call Trace: [ 10.286729][ T235] [ 10.286730][ T235] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.286736][ T235] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.286738][ T235] __might_resched.cold (kernel/sched/core.c:9234) [ 10.286742][ T235] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.286747][ T235] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.286751][ T235] __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)) [ 10.286753][ T235] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.286760][ T235] ? 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) [ 10.286763][ T235] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.286767][ T235] put_chars (drivers/char/virtio_console.c:1176) [ 10.286769][ T235] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.286772][ T235] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.286778][ T235] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.286786][ T235] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.286788][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.286791][ T235] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.286795][ T235] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.286799][ T235] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.286801][ T235] ? 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)) [ 10.286805][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.286806][ T235] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.286810][ T235] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.286815][ T235] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.286817][ T235] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.286822][ T235] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.286825][ T235] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.286827][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.286828][ T235] ? 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) [ 10.286832][ T235] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.286834][ T235] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.286837][ T235] vprintk_emit (kernel/printk/printk.c:2479) [ 10.286840][ T235] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.286842][ T235] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.286843][ T235] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 10.286848][ T235] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.286852][ T235] _printk (kernel/printk/printk.c:2504) [ 10.286855][ T235] ? snapshot_read.cold (user.c:?) [ 10.286859][ T235] ? br_multicast_flood (??:?) [ 10.286863][ T235] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 10.286864][ T235] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.286865][ T235] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.286870][ T235] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 10.286874][ T235] br_init_port (net/bridge/br_stp_if.c:39) [ 10.286876][ T235] new_nbp (net/bridge/br_if.c:449) [ 10.286880][ T235] br_add_if (net/bridge/br_if.c:592) [ 10.286883][ T235] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 10.286886][ T235] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 10.286892][ T235] do_set_master (net/core/rtnetlink.c:3071) [ 10.286896][ T235] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 10.286899][ T235] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.286903][ T235] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.286904][ T235] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.286907][ T235] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.286910][ T235] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.286913][ T235] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.286914][ T235] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.286917][ T235] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.286919][ T235] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.286921][ T235] ? kasan_save_track (mm/kasan/common.c:78) [ 10.286922][ T235] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.286924][ T235] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.286926][ T235] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.286929][ T235] ? ___sys_sendmsg (net/socket.c:2758) [ 10.286933][ T235] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.286935][ T235] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.286938][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.286939][ T235] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.286941][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.286942][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.286944][ T235] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.286946][ T235] ? __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) [ 10.286948][ T235] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.286950][ T235] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.286953][ T235] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.286955][ T235] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.286960][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.286962][ T235] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.286967][ T235] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.286973][ T235] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.286974][ T235] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.286979][ T235] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.286981][ T235] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.286983][ T235] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.286989][ T235] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.286993][ T235] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.286996][ T235] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.286999][ T235] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.287000][ T235] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.287005][ T235] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.287007][ T235] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.287010][ T235] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.287013][ T235] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.287016][ T235] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.287023][ T235] ? 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)) [ 10.287025][ T235] ? 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)) [ 10.287030][ T235] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.287034][ T235] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.287036][ T235] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.287041][ T235] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.287045][ T235] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.287049][ T235] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.287050][ T235] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.287056][ T235] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.287059][ T235] ____sys_sendmsg (net/socket.c:2713) [ 10.287061][ T235] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.287064][ T235] ? sock_write_iter (net/socket.c:1269) [ 10.287065][ T235] ? move_addr_to_kernel (net/socket.c:258) [ 10.287073][ T235] ___sys_sendmsg (net/socket.c:2767) [ 10.287076][ T235] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.287092][ T235] __sys_sendmsg (net/socket.c:2799) [ 10.287095][ T235] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.287101][ T235] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.287105][ T235] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.287108][ T235] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.287111][ T235] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.287113][ T235] RIP: 0033:0x7fdf107b354e [ 10.287117][ T235] 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 [ 10.287118][ T235] RSP: 002b:00007ffd92a86cc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.287121][ T235] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdf107b354e [ 10.287123][ T235] RDX: 0000000000000000 RSI: 00007ffd92a86d70 RDI: 0000000000000005 [ 10.287124][ T235] RBP: 00007ffd92a86cd0 R08: 0000000000000000 R09: 0000000000000000 [ 10.287125][ T235] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b077 [ 10.287125][ T235] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd92a87430 | [ 12.089548][ T389] softirqs last disabled at (15516): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 12.089550][ T389] Preemption disabled at: | [ 12.089551][ T389] 0x0 | [ 12.089561][ T389] Tainted: [W]=WARN [ 12.089562][ T389] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.089564][ T389] Call Trace: [ 12.089565][ T389] [ 12.089567][ T389] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.089573][ T389] __might_resched.cold (kernel/sched/core.c:9234) [ 12.089578][ T389] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.089582][ T389] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.089586][ T389] __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)) [ 12.089588][ T389] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.089595][ T389] ? 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) [ 12.089598][ T389] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.089601][ T389] put_chars (drivers/char/virtio_console.c:1176) [ 12.089604][ T389] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.089610][ T389] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.089617][ T389] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.089620][ T389] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.089625][ T389] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.089629][ T389] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.089631][ T389] ? 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)) [ 12.089634][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.089637][ T389] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.089641][ T389] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.089645][ T389] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.089646][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.089652][ T389] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.089655][ T389] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.089656][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.089658][ T389] ? 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) [ 12.089662][ T389] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.089663][ T389] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.089666][ T389] vprintk_emit (kernel/printk/printk.c:2479) [ 12.089669][ T389] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.089670][ T389] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.089673][ T389] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.089675][ T389] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.089679][ T389] _printk (kernel/printk/printk.c:2504) [ 12.089683][ T389] ? snapshot_read.cold (user.c:?) [ 12.089690][ T389] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 12.089695][ T389] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 12.089698][ T389] br_device_event (net/bridge/br.c:111) [ 12.089700][ T389] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 12.089704][ T389] ? packet_sendmsg_spkt (af_packet.c:?) [ 12.089710][ T389] notifier_call_chain (kernel/notifier.c:85) [ 12.089715][ T389] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 12.089721][ T389] ? netif_change_name (net/core/dev.c:1517) [ 12.089727][ T389] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 12.089731][ T389] ? __kernel_text_address (kernel/extable.c:79) [ 12.089734][ T389] ? write_profile (profile.c:?) [ 12.089738][ T389] netif_change_flags (net/core/dev.c:9882) [ 12.089742][ T389] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 12.089745][ T389] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.089747][ T389] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.089749][ T389] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.089751][ T389] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.089754][ T389] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.089756][ T389] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.089758][ T389] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.089760][ T389] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.089763][ T389] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.089764][ T389] ? kasan_save_track (mm/kasan/common.c:78) [ 12.089765][ T389] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.089767][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.089769][ T389] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.089772][ T389] ? ___sys_sendmsg (net/socket.c:2758) [ 12.089776][ T389] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.089778][ T389] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.089780][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.089782][ T389] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.089783][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.089785][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.089786][ T389] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.089789][ T389] ? __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) [ 12.089790][ T389] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.089792][ T389] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.089795][ T389] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.089799][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.089801][ T389] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.089806][ T389] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.089811][ T389] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.089813][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.089818][ T389] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.089819][ T389] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.089822][ T389] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.089823][ T389] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.089827][ T389] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.089829][ T389] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.089832][ T389] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.089834][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.089838][ T389] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.089840][ T389] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.089843][ T389] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.089846][ T389] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.089849][ T389] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.089856][ T389] ? 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)) [ 12.089858][ T389] ? 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)) [ 12.089862][ T389] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.089866][ T389] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.089868][ T389] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.089873][ T389] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.089877][ T389] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.089880][ T389] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.089882][ T389] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.089887][ T389] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.089890][ T389] ____sys_sendmsg (net/socket.c:2713) [ 12.089892][ T389] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.089895][ T389] ? sock_write_iter (net/socket.c:1269) [ 12.089896][ T389] ? move_addr_to_kernel (net/socket.c:258) [ 12.089904][ T389] ___sys_sendmsg (net/socket.c:2767) [ 12.089906][ T389] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.089922][ T389] __sys_sendmsg (net/socket.c:2799) [ 12.089925][ T389] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.089931][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.089934][ T389] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.089937][ T389] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.089940][ T389] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.089942][ T389] RIP: 0033:0x7f5dd337254e [ 12.089945][ T389] 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 [ 12.089946][ T389] RSP: 002b:00007ffea5319bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.089949][ T389] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5dd337254e [ 12.089950][ T389] RDX: 0000000000000000 RSI: 00007ffea5319c70 RDI: 0000000000000005 [ 12.089951][ T389] RBP: 00007ffea5319bd0 R08: 0000000000000000 R09: 0000000000000000 [ 12.089952][ T389] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b079 [ 12.089952][ T389] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea531a330 | [ 13.402860][ T527] softirqs last disabled at (18928): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 13.402862][ T527] Preemption disabled at: | [ 13.402862][ T527] 0x0 | [ 13.402873][ T527] Tainted: [W]=WARN [ 13.402874][ T527] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.402876][ T527] Call Trace: [ 13.402877][ T527] [ 13.402879][ T527] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.402885][ T527] __might_resched.cold (kernel/sched/core.c:9234) [ 13.402890][ T527] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.402894][ T527] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.402899][ T527] __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)) [ 13.402901][ T527] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.402907][ T527] ? 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) [ 13.402910][ T527] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.402914][ T527] put_chars (drivers/char/virtio_console.c:1176) [ 13.402916][ T527] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.402917][ T527] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.402921][ T527] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.402927][ T527] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.402934][ T527] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.402937][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.402939][ T527] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.402943][ T527] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.402947][ T527] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.402948][ T527] ? 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)) [ 13.402952][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.402953][ T527] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.402957][ T527] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.402961][ T527] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.402963][ T527] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.402968][ T527] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.402971][ T527] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.402973][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.402975][ T527] ? 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) [ 13.402978][ T527] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.402980][ T527] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.402983][ T527] vprintk_emit (kernel/printk/printk.c:2479) [ 13.402986][ T527] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.402988][ T527] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.402990][ T527] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.402995][ T527] _printk (kernel/printk/printk.c:2504) [ 13.403004][ T527] ? snapshot_read.cold (user.c:?) [ 13.403009][ T527] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.403013][ T527] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 13.403018][ T527] br_init_port (net/bridge/br_stp_if.c:39) [ 13.403020][ T527] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 13.403022][ T527] br_device_event (net/bridge/br.c:120) [ 13.403025][ T527] ? packet_sendmsg_spkt (af_packet.c:?) [ 13.403027][ T527] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 13.403034][ T527] notifier_call_chain (kernel/notifier.c:85) [ 13.403040][ T527] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 13.403045][ T527] ? netif_change_name (net/core/dev.c:1517) [ 13.403049][ T527] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 13.403051][ T527] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 13.403054][ T527] ? __kernel_text_address (kernel/extable.c:79) [ 13.403055][ T527] ? write_profile (profile.c:?) [ 13.403061][ T527] netif_change_flags (net/core/dev.c:9882) [ 13.403064][ T527] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 13.403068][ T527] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.403070][ T527] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.403071][ T527] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.403073][ T527] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.403076][ T527] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.403078][ T527] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.403080][ T527] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.403082][ T527] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.403085][ T527] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.403086][ T527] ? kasan_save_track (mm/kasan/common.c:78) [ 13.403087][ T527] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 13.403089][ T527] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.403091][ T527] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 13.403094][ T527] ? ___sys_sendmsg (net/socket.c:2758) [ 13.403098][ T527] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.403100][ T527] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.403102][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.403104][ T527] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.403105][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.403107][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.403108][ T527] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.403111][ T527] ? __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) [ 13.403113][ T527] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.403115][ T527] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.403119][ T527] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.403122][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.403124][ T527] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.403130][ T527] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.403135][ T527] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.403137][ T527] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.403141][ T527] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.403143][ T527] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.403145][ T527] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.403147][ T527] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.403151][ T527] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.403153][ T527] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.403156][ T527] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.403157][ T527] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.403162][ T527] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.403164][ T527] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.403167][ T527] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.403169][ T527] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.403172][ T527] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.403178][ T527] ? 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)) [ 13.403180][ T527] ? 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)) [ 13.403185][ T527] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.403189][ T527] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.403191][ T527] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.403196][ T527] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.403200][ T527] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.403203][ T527] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.403205][ T527] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 13.403210][ T527] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 13.403213][ T527] ____sys_sendmsg (net/socket.c:2713) [ 13.403215][ T527] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.403218][ T527] ? sock_write_iter (net/socket.c:1269) [ 13.403219][ T527] ? move_addr_to_kernel (net/socket.c:258) [ 13.403227][ T527] ___sys_sendmsg (net/socket.c:2767) [ 13.403230][ T527] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.403247][ T527] __sys_sendmsg (net/socket.c:2799) [ 13.403250][ T527] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.403256][ T527] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.403259][ T527] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.403262][ T527] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.403265][ T527] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.403267][ T527] RIP: 0033:0x7f947b64454e [ 13.403269][ T527] 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 [ 13.403271][ T527] RSP: 002b:00007fffd5c34970 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.403273][ T527] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f947b64454e [ 13.403275][ T527] RDX: 0000000000000000 RSI: 00007fffd5c34a20 RDI: 0000000000000005 [ 13.403275][ T527] RBP: 00007fffd5c34980 R08: 0000000000000000 R09: 0000000000000000 [ 13.403276][ T527] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b07a [ 13.403277][ T527] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd5c350e0 | [ 15.038528][ T649] softirqs last disabled at (22042): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 15.038530][ T649] Preemption disabled at: | [ 15.038531][ T649] 0x0 | [ 15.038541][ T649] Tainted: [W]=WARN [ 15.038542][ T649] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.038544][ T649] Call Trace: [ 15.038545][ T649] [ 15.038547][ T649] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.038553][ T649] __might_resched.cold (kernel/sched/core.c:9234) [ 15.038558][ T649] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.038562][ T649] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.038566][ T649] __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)) [ 15.038568][ T649] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.038575][ T649] ? 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) [ 15.038577][ T649] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.038581][ T649] put_chars (drivers/char/virtio_console.c:1176) [ 15.038583][ T649] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.038590][ T649] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.038597][ T649] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.038601][ T649] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.038605][ T649] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.038609][ T649] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.038611][ T649] ? 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)) [ 15.038614][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.038617][ T649] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.038621][ T649] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.038625][ T649] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.038627][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.038632][ T649] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.038635][ T649] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.038637][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.038638][ T649] ? 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) [ 15.038642][ T649] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.038644][ T649] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.038647][ T649] vprintk_emit (kernel/printk/printk.c:2479) [ 15.038650][ T649] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.038651][ T649] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 15.038653][ T649] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.038655][ T649] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.038660][ T649] _printk (kernel/printk/printk.c:2504) [ 15.038663][ T649] ? snapshot_read.cold (user.c:?) [ 15.038674][ T649] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 15.038679][ T649] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 15.038682][ T649] br_device_event (net/bridge/br.c:111) [ 15.038685][ T649] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 15.038688][ T649] ? packet_sendmsg_spkt (af_packet.c:?) [ 15.038694][ T649] notifier_call_chain (kernel/notifier.c:85) [ 15.038700][ T649] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 15.038705][ T649] ? netif_change_name (net/core/dev.c:1517) [ 15.038709][ T649] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 15.038710][ T649] ? kernel_text_address (kernel/extable.c:133) [ 15.038714][ T649] ? __kernel_text_address (kernel/extable.c:79) [ 15.038715][ T649] ? write_profile (profile.c:?) [ 15.038720][ T649] netif_change_flags (net/core/dev.c:9882) [ 15.038724][ T649] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 15.038727][ T649] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 15.038730][ T649] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 15.038731][ T649] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 15.038733][ T649] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.038736][ T649] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.038738][ T649] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.038740][ T649] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.038742][ T649] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.038745][ T649] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.038746][ T649] ? kasan_save_track (mm/kasan/common.c:78) [ 15.038747][ T649] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 15.038749][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.038751][ T649] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 15.038754][ T649] ? ___sys_sendmsg (net/socket.c:2758) [ 15.038758][ T649] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.038760][ T649] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.038762][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.038764][ T649] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.038765][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.038766][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.038768][ T649] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 15.038770][ T649] ? __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) [ 15.038772][ T649] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 15.038774][ T649] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.038777][ T649] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 15.038781][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.038783][ T649] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 15.038788][ T649] rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.038793][ T649] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.038795][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.038800][ T649] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.038802][ T649] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.038804][ T649] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.038806][ T649] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.038809][ T649] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.038811][ T649] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.038815][ T649] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.038816][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.038820][ T649] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.038822][ T649] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.038826][ T649] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 15.038829][ T649] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.038832][ T649] ? netlink_ack (./include/linux/skbuff.h:2718) [ 15.038838][ T649] ? 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)) [ 15.038840][ T649] ? 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)) [ 15.038844][ T649] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 15.038848][ T649] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.038851][ T649] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.038855][ T649] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 15.038859][ T649] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.038863][ T649] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.038864][ T649] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 15.038870][ T649] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 15.038872][ T649] ____sys_sendmsg (net/socket.c:2713) [ 15.038874][ T649] ? copy_msghdr_from_user (net/socket.c:2650) [ 15.038877][ T649] ? sock_write_iter (net/socket.c:1269) [ 15.038878][ T649] ? move_addr_to_kernel (net/socket.c:258) [ 15.038886][ T649] ___sys_sendmsg (net/socket.c:2767) [ 15.038888][ T649] ? copy_msghdr_from_user (net/socket.c:2619) [ 15.038904][ T649] __sys_sendmsg (net/socket.c:2799) [ 15.038907][ T649] ? __sys_sendmsg_sock (net/socket.c:2780) [ 15.038914][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.038917][ T649] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.038920][ T649] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.038922][ T649] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.038925][ T649] RIP: 0033:0x7f7f3473354e [ 15.038927][ T649] 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 [ 15.038929][ T649] RSP: 002b:00007fff66205160 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 15.038931][ T649] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7f3473354e [ 15.038933][ T649] RDX: 0000000000000000 RSI: 00007fff66205210 RDI: 0000000000000005 [ 15.038933][ T649] RBP: 00007fff66205170 R08: 0000000000000000 R09: 0000000000000000 [ 15.038934][ T649] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b07c [ 15.038935][ T649] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff662058d0 | [ 16.049282][ T741] softirqs last disabled at (16132): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 16.049285][ T741] Preemption disabled at: | [ 16.049285][ T741] 0x0 | [ 16.049295][ T741] Tainted: [W]=WARN [ 16.049296][ T741] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.049298][ T741] Call Trace: [ 16.049300][ T741] [ 16.049301][ T741] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.049308][ T741] __might_resched.cold (kernel/sched/core.c:9234) [ 16.049312][ T741] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.049316][ T741] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.049321][ T741] __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)) [ 16.049323][ T741] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.049329][ T741] ? 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) [ 16.049332][ T741] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.049335][ T741] put_chars (drivers/char/virtio_console.c:1176) [ 16.049338][ T741] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.049344][ T741] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.049352][ T741] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.049355][ T741] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.049360][ T741] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.049364][ T741] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.049366][ T741] ? 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)) [ 16.049369][ T741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.049372][ T741] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.049376][ T741] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.049380][ T741] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.049382][ T741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.049388][ T741] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.049391][ T741] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.049392][ T741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.049394][ T741] ? 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) [ 16.049398][ T741] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.049400][ T741] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.049403][ T741] vprintk_emit (kernel/printk/printk.c:2479) [ 16.049406][ T741] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.049407][ T741] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 16.049410][ T741] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.049412][ T741] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.049416][ T741] _printk (kernel/printk/printk.c:2504) [ 16.049419][ T741] ? snapshot_read.cold (user.c:?) [ 16.049427][ T741] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 16.049432][ T741] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 16.049436][ T741] br_device_event (net/bridge/br.c:111) [ 16.049438][ T741] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 16.049442][ T741] ? packet_sendmsg_spkt (af_packet.c:?) [ 16.049447][ T741] notifier_call_chain (kernel/notifier.c:85) [ 16.049453][ T741] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 16.049458][ T741] ? netif_change_name (net/core/dev.c:1517) [ 16.049462][ T741] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 16.049465][ T741] ? __kernel_text_address (kernel/extable.c:79) [ 16.049468][ T741] ? write_profile (profile.c:?) [ 16.049473][ T741] netif_change_flags (net/core/dev.c:9882) [ 16.049477][ T741] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 16.049480][ T741] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 16.049482][ T741] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 16.049484][ T741] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 16.049486][ T741] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 16.049489][ T741] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.049491][ T741] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.049493][ T741] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.049495][ T741] ? kasan_save_stack (mm/kasan/common.c:58) [ 16.049497][ T741] ? kasan_save_stack (mm/kasan/common.c:57) [ 16.049499][ T741] ? kasan_save_track (mm/kasan/common.c:78) [ 16.049500][ T741] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 16.049502][ T741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.049504][ T741] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 16.049507][ T741] ? ___sys_sendmsg (net/socket.c:2758) [ 16.049511][ T741] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.049513][ T741] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.049515][ T741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.049517][ T741] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.049519][ T741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.049520][ T741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.049522][ T741] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 16.049524][ T741] ? __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) [ 16.049526][ T741] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 16.049528][ T741] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.049531][ T741] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 16.049535][ T741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.049537][ T741] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 16.049542][ T741] rtnl_newlink (net/core/rtnetlink.c:4215) [ 16.049548][ T741] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.049550][ T741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.049554][ T741] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.049556][ T741] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.049558][ T741] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.049560][ T741] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.049564][ T741] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.049566][ T741] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 16.049570][ T741] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.049571][ T741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.049576][ T741] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.049578][ T741] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.049581][ T741] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 16.049584][ T741] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.049587][ T741] ? netlink_ack (./include/linux/skbuff.h:2718) [ 16.049594][ T741] ? 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)) [ 16.049596][ T741] ? 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)) [ 16.049600][ T741] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 16.049604][ T741] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 16.049607][ T741] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.049611][ T741] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 16.049615][ T741] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 16.049619][ T741] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.049621][ T741] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 16.049627][ T741] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 16.049629][ T741] ____sys_sendmsg (net/socket.c:2713) [ 16.049632][ T741] ? copy_msghdr_from_user (net/socket.c:2650) [ 16.049634][ T741] ? sock_write_iter (net/socket.c:1269) [ 16.049636][ T741] ? move_addr_to_kernel (net/socket.c:258) [ 16.049643][ T741] ___sys_sendmsg (net/socket.c:2767) [ 16.049646][ T741] ? copy_msghdr_from_user (net/socket.c:2619) [ 16.049662][ T741] __sys_sendmsg (net/socket.c:2799) [ 16.049665][ T741] ? __sys_sendmsg_sock (net/socket.c:2780) [ 16.049672][ T741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.049675][ T741] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.049678][ T741] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.049681][ T741] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.049683][ T741] RIP: 0033:0x7fe1cf4ad54e [ 16.049685][ T741] 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 [ 16.049687][ T741] RSP: 002b:00007ffe5c2c9460 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 16.049689][ T741] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe1cf4ad54e [ 16.049691][ T741] RDX: 0000000000000000 RSI: 00007ffe5c2c9510 RDI: 0000000000000005 [ 16.049691][ T741] RBP: 00007ffe5c2c9470 R08: 0000000000000000 R09: 0000000000000000 [ 16.049692][ T741] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b07d [ 16.049693][ T741] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe5c2c9bd0 | [ 17.429640][ T36] softirqs last disabled at (130098): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 17.429643][ T36] Preemption disabled at: | [ 17.429644][ T36] 0x0 | [ 17.429657][ T36] Tainted: [W]=WARN [ 17.429659][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.429661][ T36] Workqueue: events_unbound linkwatch_event [ 17.429666][ T36] Call Trace: [ 17.429668][ T36] [ 17.429671][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.429680][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 17.429686][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.429692][ 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) [ 17.429699][ 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)) [ 17.429703][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.429713][ 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) [ 17.429717][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.429728][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 17.429733][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.429738][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.429742][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.429746][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.429754][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.429759][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.429762][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.429764][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.429772][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.429775][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.429783][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.429791][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.429797][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.429800][ 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)) [ 17.429806][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.429809][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.429816][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.429824][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.429827][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.429837][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.429842][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.429844][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.429847][ 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) [ 17.429854][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.429857][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.429862][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 17.429868][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.429872][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.429875][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.429883][ T36] _printk (kernel/printk/printk.c:2504) [ 17.429888][ T36] ? snapshot_read.cold (user.c:?) [ 17.429898][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.429905][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 17.429912][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 17.429916][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 17.429919][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 17.429926][ T36] br_device_event (net/bridge/br.c:101) [ 17.429931][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 17.429934][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 17.429944][ T36] notifier_call_chain (kernel/notifier.c:85) [ 17.429954][ T36] netif_state_change (net/core/dev.c:1625) [ 17.429962][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 17.429970][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 17.429974][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 17.429979][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 17.429984][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.429992][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 17.429995][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 17.430002][ T36] process_one_work (kernel/workqueue.c:3387) [ 17.430014][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 17.430025][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.430040][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 17.430053][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 17.430056][ T36] kthread (kernel/kthread.c:436) [ 17.430059][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.430064][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.430069][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 17.430075][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 17.430081][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 17.430086][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.430091][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 18.479616][ T930] softirqs last disabled at (17160): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 18.479619][ T930] Preemption disabled at: | [ 18.479620][ T930] 0x0 | [ 18.479633][ T930] Tainted: [W]=WARN [ 18.479634][ T930] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.479636][ T930] Call Trace: [ 18.479639][ T930] [ 18.479641][ T930] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.479649][ T930] __might_resched.cold (kernel/sched/core.c:9234) [ 18.479655][ T930] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.479661][ T930] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.479667][ T930] __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)) [ 18.479670][ T930] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.479680][ T930] ? 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) [ 18.479683][ T930] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.479689][ T930] put_chars (drivers/char/virtio_console.c:1176) [ 18.479693][ T930] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.479704][ T930] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.479716][ T930] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.479721][ T930] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.479732][ T930] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.479738][ T930] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.479741][ T930] ? 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)) [ 18.479746][ T930] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.479750][ T930] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.479757][ T930] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.479764][ T930] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.479767][ T930] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.479776][ T930] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.479781][ T930] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.479783][ T930] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.479786][ T930] ? 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) [ 18.479793][ T930] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.479795][ T930] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.479800][ T930] vprintk_emit (kernel/printk/printk.c:2479) [ 18.479806][ T930] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.479808][ T930] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 18.479812][ T930] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.479815][ T930] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.479823][ T930] _printk (kernel/printk/printk.c:2504) [ 18.479827][ T930] ? snapshot_read.cold (user.c:?) [ 18.479841][ T930] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 18.479848][ T930] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 18.479854][ T930] br_device_event (net/bridge/br.c:111) [ 18.479857][ T930] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 18.479862][ T930] ? packet_sendmsg_spkt (af_packet.c:?) [ 18.479872][ T930] notifier_call_chain (kernel/notifier.c:85) [ 18.479882][ T930] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 18.479889][ T930] ? netif_change_name (net/core/dev.c:1517) [ 18.479895][ T930] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 18.479900][ T930] ? __kernel_text_address (kernel/extable.c:79) [ 18.479904][ T930] ? write_profile (profile.c:?) [ 18.479912][ T930] netif_change_flags (net/core/dev.c:9882) [ 18.479918][ T930] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 18.479924][ T930] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 18.479927][ T930] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 18.479930][ T930] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 18.479933][ T930] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 18.479937][ T930] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.479940][ T930] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.479943][ T930] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.479947][ T930] ? kasan_save_stack (mm/kasan/common.c:58) [ 18.479951][ T930] ? kasan_save_stack (mm/kasan/common.c:57) [ 18.479952][ T930] ? kasan_save_track (mm/kasan/common.c:78) [ 18.479954][ T930] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 18.479959][ T930] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.479961][ T930] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 18.479965][ T930] ? ___sys_sendmsg (net/socket.c:2758) [ 18.479971][ T930] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.479974][ T930] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.479979][ T930] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.479982][ T930] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.479984][ T930] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.479986][ T930] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.479989][ T930] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 18.479993][ T930] ? __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) [ 18.479995][ T930] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 18.479998][ T930] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.480004][ T930] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 18.480011][ T930] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.480015][ T930] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 18.480031][ T930] rtnl_newlink (net/core/rtnetlink.c:4215) [ 18.480041][ T930] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.480044][ T930] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.480052][ T930] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.480055][ T930] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.480058][ T930] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.480061][ T930] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.480068][ T930] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.480071][ T930] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 18.480077][ T930] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.480079][ T930] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.480086][ T930] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.480089][ T930] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.480095][ T930] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 18.480099][ T930] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.480104][ T930] ? netlink_ack (./include/linux/skbuff.h:2718) [ 18.480115][ T930] ? 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)) [ 18.480118][ T930] ? 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)) [ 18.480126][ T930] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 18.480132][ T930] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 18.480136][ T930] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.480144][ T930] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 18.480151][ T930] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 18.480157][ T930] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.480159][ T930] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 18.480168][ T930] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 18.480173][ T930] ____sys_sendmsg (net/socket.c:2713) [ 18.480176][ T930] ? copy_msghdr_from_user (net/socket.c:2650) [ 18.480180][ T930] ? sock_write_iter (net/socket.c:1269) [ 18.480182][ T930] ? move_addr_to_kernel (net/socket.c:258) [ 18.480196][ T930] ___sys_sendmsg (net/socket.c:2767) [ 18.480200][ T930] ? copy_msghdr_from_user (net/socket.c:2619) [ 18.480230][ T930] __sys_sendmsg (net/socket.c:2799) [ 18.480235][ T930] ? __sys_sendmsg_sock (net/socket.c:2780) [ 18.480246][ T930] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.480252][ T930] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 18.480256][ T930] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 18.480260][ T930] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.480264][ T930] RIP: 0033:0x7f1b04b1754e [ 18.480267][ T930] 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 [ 18.480269][ T930] RSP: 002b:00007ffd9e2833f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 18.480273][ T930] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1b04b1754e [ 18.480275][ T930] RDX: 0000000000000000 RSI: 00007ffd9e2834a0 RDI: 0000000000000005 [ 18.480276][ T930] RBP: 00007ffd9e283400 R08: 0000000000000000 R09: 0000000000000000 [ 18.480277][ T930] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b07f [ 18.480279][ T930] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd9e283b60 | [ 19.580723][ T1030] softirqs last disabled at (15170): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 19.580727][ T1030] Preemption disabled at: | [ 19.580728][ T1030] 0x0 | [ 19.580739][ T1030] Tainted: [W]=WARN [ 19.580740][ T1030] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.580741][ T1030] Call Trace: [ 19.580743][ T1030] [ 19.580745][ T1030] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.580751][ T1030] __might_resched.cold (kernel/sched/core.c:9234) [ 19.580756][ T1030] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.580760][ T1030] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.580765][ T1030] __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)) [ 19.580767][ T1030] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.580773][ T1030] ? 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) [ 19.580776][ T1030] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.580780][ T1030] put_chars (drivers/char/virtio_console.c:1176) [ 19.580782][ T1030] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.580788][ T1030] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.580796][ T1030] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.580799][ T1030] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.580803][ T1030] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.580807][ T1030] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.580809][ T1030] ? 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)) [ 19.580812][ T1030] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.580815][ T1030] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.580819][ T1030] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.580823][ T1030] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.580825][ T1030] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.580830][ T1030] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.580833][ T1030] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.580835][ T1030] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.580836][ T1030] ? 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) [ 19.580840][ T1030] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.580842][ T1030] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.580844][ T1030] vprintk_emit (kernel/printk/printk.c:2479) [ 19.580847][ T1030] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.580849][ T1030] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 19.580851][ T1030] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.580853][ T1030] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.580857][ T1030] _printk (kernel/printk/printk.c:2504) [ 19.580861][ T1030] ? snapshot_read.cold (user.c:?) [ 19.580868][ T1030] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 19.580873][ T1030] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 19.580876][ T1030] br_device_event (net/bridge/br.c:111) [ 19.580878][ T1030] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 19.580883][ T1030] ? packet_sendmsg_spkt (af_packet.c:?) [ 19.580888][ T1030] notifier_call_chain (kernel/notifier.c:85) [ 19.580894][ T1030] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 19.580899][ T1030] ? netif_change_name (net/core/dev.c:1517) [ 19.580903][ T1030] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 19.580906][ T1030] ? __kernel_text_address (kernel/extable.c:79) [ 19.580909][ T1030] ? write_profile (profile.c:?) [ 19.580914][ T1030] netif_change_flags (net/core/dev.c:9882) [ 19.580917][ T1030] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 19.580921][ T1030] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 19.580923][ T1030] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 19.580924][ T1030] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 19.580926][ T1030] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 19.580929][ T1030] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.580931][ T1030] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.580933][ T1030] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.580936][ T1030] ? kasan_save_stack (mm/kasan/common.c:58) [ 19.580938][ T1030] ? kasan_save_stack (mm/kasan/common.c:57) [ 19.580939][ T1030] ? kasan_save_track (mm/kasan/common.c:78) [ 19.580940][ T1030] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 19.580943][ T1030] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.580945][ T1030] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 19.580947][ T1030] ? ___sys_sendmsg (net/socket.c:2758) [ 19.580951][ T1030] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.580953][ T1030] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.580956][ T1030] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.580957][ T1030] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.580959][ T1030] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.580960][ T1030] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.580962][ T1030] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 19.580964][ T1030] ? __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) [ 19.580965][ T1030] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 19.580967][ T1030] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.580971][ T1030] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 19.580974][ T1030] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.580976][ T1030] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 19.580981][ T1030] rtnl_newlink (net/core/rtnetlink.c:4215) [ 19.580987][ T1030] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.580988][ T1030] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.580993][ T1030] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.580995][ T1030] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.580997][ T1030] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.580999][ T1030] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.581002][ T1030] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.581004][ T1030] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 19.581008][ T1030] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.581009][ T1030] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.581013][ T1030] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.581015][ T1030] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.581019][ T1030] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 19.581022][ T1030] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.581029][ T1030] ? netlink_ack (./include/linux/skbuff.h:2718) [ 19.581035][ T1030] ? 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)) [ 19.581038][ T1030] ? 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)) [ 19.581042][ T1030] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 19.581046][ T1030] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 19.581048][ T1030] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.581053][ T1030] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 19.581057][ T1030] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 19.581060][ T1030] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.581062][ T1030] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 19.581068][ T1030] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 19.581070][ T1030] ____sys_sendmsg (net/socket.c:2713) [ 19.581073][ T1030] ? copy_msghdr_from_user (net/socket.c:2650) [ 19.581075][ T1030] ? sock_write_iter (net/socket.c:1269) [ 19.581077][ T1030] ? move_addr_to_kernel (net/socket.c:258) [ 19.581084][ T1030] ___sys_sendmsg (net/socket.c:2767) [ 19.581087][ T1030] ? copy_msghdr_from_user (net/socket.c:2619) [ 19.581103][ T1030] __sys_sendmsg (net/socket.c:2799) [ 19.581106][ T1030] ? __sys_sendmsg_sock (net/socket.c:2780) [ 19.581112][ T1030] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.581115][ T1030] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.581118][ T1030] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.581120][ T1030] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.581123][ T1030] RIP: 0033:0x7f98cd5e154e [ 19.581125][ T1030] 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 [ 19.581127][ T1030] RSP: 002b:00007fff2409e950 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 19.581129][ T1030] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f98cd5e154e [ 19.581131][ T1030] RDX: 0000000000000000 RSI: 00007fff2409ea00 RDI: 0000000000000005 [ 19.581132][ T1030] RBP: 00007fff2409e960 R08: 0000000000000000 R09: 0000000000000000 [ 19.581132][ T1030] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b080 [ 19.581133][ T1030] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff2409f0c0 | [ 20.754833][ T1132] softirqs last disabled at (16592): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 20.754836][ T1132] Preemption disabled at: | [ 20.754836][ T1132] 0x0 | [ 20.754846][ T1132] Tainted: [W]=WARN [ 20.754847][ T1132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.754849][ T1132] Call Trace: [ 20.754851][ T1132] [ 20.754852][ T1132] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.754859][ T1132] __might_resched.cold (kernel/sched/core.c:9234) [ 20.754864][ T1132] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.754868][ T1132] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 20.754872][ T1132] __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)) [ 20.754874][ T1132] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.754881][ T1132] ? 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) [ 20.754884][ T1132] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.754888][ T1132] put_chars (drivers/char/virtio_console.c:1176) [ 20.754890][ T1132] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.754892][ T1132] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.754895][ T1132] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.754901][ T1132] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.754909][ T1132] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.754912][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.754914][ T1132] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.754918][ T1132] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.754922][ T1132] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.754924][ T1132] ? 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)) [ 20.754927][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.754929][ T1132] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.754933][ T1132] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.754937][ T1132] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.754939][ T1132] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.754945][ T1132] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.754948][ T1132] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.754950][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.754951][ T1132] ? 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) [ 20.754955][ T1132] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.754957][ T1132] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.754960][ T1132] vprintk_emit (kernel/printk/printk.c:2479) [ 20.754963][ T1132] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.754965][ T1132] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.754967][ T1132] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.754972][ T1132] _printk (kernel/printk/printk.c:2504) [ 20.754976][ T1132] ? snapshot_read.cold (user.c:?) [ 20.754981][ T1132] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.754985][ T1132] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 20.754989][ T1132] br_init_port (net/bridge/br_stp_if.c:39) [ 20.754992][ T1132] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 20.754994][ T1132] br_device_event (net/bridge/br.c:120) [ 20.754997][ T1132] ? packet_sendmsg_spkt (af_packet.c:?) [ 20.754999][ T1132] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 20.755006][ T1132] notifier_call_chain (kernel/notifier.c:85) [ 20.755012][ T1132] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 20.755017][ T1132] ? netif_change_name (net/core/dev.c:1517) [ 20.755021][ T1132] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 20.755023][ T1132] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 20.755026][ T1132] ? __kernel_text_address (kernel/extable.c:79) [ 20.755028][ T1132] ? write_profile (profile.c:?) [ 20.755038][ T1132] netif_change_flags (net/core/dev.c:9882) [ 20.755042][ T1132] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 20.755046][ T1132] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 20.755048][ T1132] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 20.755049][ T1132] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 20.755051][ T1132] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.755055][ T1132] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.755056][ T1132] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.755058][ T1132] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.755061][ T1132] ? kasan_save_stack (mm/kasan/common.c:58) [ 20.755063][ T1132] ? kasan_save_stack (mm/kasan/common.c:57) [ 20.755064][ T1132] ? kasan_save_track (mm/kasan/common.c:78) [ 20.755066][ T1132] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 20.755068][ T1132] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.755070][ T1132] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 20.755073][ T1132] ? ___sys_sendmsg (net/socket.c:2758) [ 20.755077][ T1132] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.755079][ T1132] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.755081][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.755083][ T1132] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.755084][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.755086][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.755087][ T1132] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 20.755090][ T1132] ? __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) [ 20.755092][ T1132] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 20.755094][ T1132] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.755098][ T1132] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 20.755101][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.755104][ T1132] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 20.755109][ T1132] rtnl_newlink (net/core/rtnetlink.c:4215) [ 20.755114][ T1132] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.755116][ T1132] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.755121][ T1132] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.755123][ T1132] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.755125][ T1132] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.755127][ T1132] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.755131][ T1132] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.755133][ T1132] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 20.755136][ T1132] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.755138][ T1132] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.755142][ T1132] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.755144][ T1132] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.755148][ T1132] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 20.755149][ T1132] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.755152][ T1132] ? netlink_ack (./include/linux/skbuff.h:2718) [ 20.755159][ T1132] ? 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)) [ 20.755161][ T1132] ? 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)) [ 20.755166][ T1132] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 20.755170][ T1132] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 20.755172][ T1132] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.755177][ T1132] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 20.755181][ T1132] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.755185][ T1132] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.755186][ T1132] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 20.755191][ T1132] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 20.755194][ T1132] ____sys_sendmsg (net/socket.c:2713) [ 20.755197][ T1132] ? copy_msghdr_from_user (net/socket.c:2650) [ 20.755199][ T1132] ? sock_write_iter (net/socket.c:1269) [ 20.755200][ T1132] ? move_addr_to_kernel (net/socket.c:258) [ 20.755208][ T1132] ___sys_sendmsg (net/socket.c:2767) [ 20.755211][ T1132] ? copy_msghdr_from_user (net/socket.c:2619) [ 20.755227][ T1132] __sys_sendmsg (net/socket.c:2799) [ 20.755230][ T1132] ? __sys_sendmsg_sock (net/socket.c:2780) [ 20.755237][ T1132] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.755240][ T1132] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.755243][ T1132] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.755246][ T1132] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.755248][ T1132] RIP: 0033:0x7fc08394854e [ 20.755250][ T1132] 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 [ 20.755252][ T1132] RSP: 002b:00007ffe318b8740 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 20.755255][ T1132] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc08394854e [ 20.755256][ T1132] RDX: 0000000000000000 RSI: 00007ffe318b87f0 RDI: 0000000000000005 [ 20.755257][ T1132] RBP: 00007ffe318b8750 R08: 0000000000000000 R09: 0000000000000000 [ 20.755258][ T1132] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b082 [ 20.755258][ T1132] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe318b8eb0 | [ 22.018456][ T1231] softirqs last disabled at (15392): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 22.018458][ T1231] Preemption disabled at: | [ 22.018458][ T1231] 0x0 | [ 22.018469][ T1231] Tainted: [W]=WARN [ 22.018470][ T1231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.018472][ T1231] Call Trace: [ 22.018473][ T1231] [ 22.018475][ T1231] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.018481][ T1231] __might_resched.cold (kernel/sched/core.c:9234) [ 22.018486][ T1231] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.018490][ 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) [ 22.018494][ 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)) [ 22.018496][ T1231] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.018503][ 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) [ 22.018506][ T1231] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.018509][ T1231] put_chars (drivers/char/virtio_console.c:1176) [ 22.018512][ T1231] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.018513][ T1231] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.018517][ T1231] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.018522][ T1231] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.018530][ T1231] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.018533][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018535][ T1231] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.018539][ T1231] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.018543][ T1231] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.018544][ 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)) [ 22.018548][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018549][ T1231] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.018553][ T1231] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.018557][ T1231] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.018559][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.018565][ T1231] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.018567][ T1231] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.018569][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018571][ 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) [ 22.018575][ T1231] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.018576][ T1231] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.018579][ T1231] vprintk_emit (kernel/printk/printk.c:2479) [ 22.018582][ T1231] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.018584][ T1231] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.018586][ T1231] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.018591][ T1231] _printk (kernel/printk/printk.c:2504) [ 22.018595][ T1231] ? snapshot_read.cold (user.c:?) [ 22.018600][ T1231] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.018604][ T1231] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 22.018609][ T1231] br_init_port (net/bridge/br_stp_if.c:39) [ 22.018611][ T1231] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 22.018613][ T1231] br_device_event (net/bridge/br.c:120) [ 22.018616][ T1231] ? packet_sendmsg_spkt (af_packet.c:?) [ 22.018618][ T1231] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 22.018624][ T1231] notifier_call_chain (kernel/notifier.c:85) [ 22.018630][ T1231] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 22.018635][ T1231] ? netif_change_name (net/core/dev.c:1517) [ 22.018639][ T1231] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 22.018642][ T1231] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 22.018645][ T1231] ? __kernel_text_address (kernel/extable.c:79) [ 22.018646][ T1231] ? write_profile (profile.c:?) [ 22.018651][ T1231] netif_change_flags (net/core/dev.c:9882) [ 22.018655][ T1231] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 22.018658][ T1231] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 22.018660][ T1231] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 22.018662][ T1231] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 22.018664][ T1231] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 22.018667][ T1231] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.018669][ T1231] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.018670][ T1231] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.018673][ T1231] ? kasan_save_stack (mm/kasan/common.c:58) [ 22.018675][ T1231] ? kasan_save_stack (mm/kasan/common.c:57) [ 22.018676][ T1231] ? kasan_save_track (mm/kasan/common.c:78) [ 22.018678][ T1231] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 22.018680][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.018682][ T1231] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 22.018684][ T1231] ? ___sys_sendmsg (net/socket.c:2758) [ 22.018688][ T1231] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.018690][ T1231] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 22.018693][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018694][ T1231] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.018696][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018697][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018699][ T1231] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 22.018701][ 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) [ 22.018704][ T1231] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 22.018706][ T1231] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 22.018709][ T1231] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 22.018713][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018715][ T1231] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 22.018720][ T1231] rtnl_newlink (net/core/rtnetlink.c:4215) [ 22.018728][ T1231] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.018730][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.018734][ T1231] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.018736][ T1231] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.018738][ T1231] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.018740][ T1231] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.018744][ T1231] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.018746][ T1231] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 22.018749][ T1231] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 22.018751][ T1231] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.018755][ T1231] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.018757][ T1231] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.018761][ T1231] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 22.018762][ T1231] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 22.018765][ T1231] ? netlink_ack (./include/linux/skbuff.h:2718) [ 22.018772][ 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)) [ 22.018774][ 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)) [ 22.018778][ T1231] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 22.018782][ T1231] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 22.018785][ T1231] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.018789][ T1231] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 22.018793][ T1231] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 22.018797][ T1231] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.018798][ T1231] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 22.018804][ T1231] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 22.018806][ T1231] ____sys_sendmsg (net/socket.c:2713) [ 22.018809][ T1231] ? copy_msghdr_from_user (net/socket.c:2650) [ 22.018811][ T1231] ? sock_write_iter (net/socket.c:1269) [ 22.018812][ T1231] ? move_addr_to_kernel (net/socket.c:258) [ 22.018820][ T1231] ___sys_sendmsg (net/socket.c:2767) [ 22.018823][ T1231] ? copy_msghdr_from_user (net/socket.c:2619) [ 22.018839][ T1231] __sys_sendmsg (net/socket.c:2799) [ 22.018841][ T1231] ? __sys_sendmsg_sock (net/socket.c:2780) [ 22.018848][ T1231] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.018851][ T1231] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.018854][ T1231] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.018856][ T1231] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.018859][ T1231] RIP: 0033:0x7f29a80cb54e [ 22.018861][ 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 [ 22.018863][ T1231] RSP: 002b:00007ffe25ecf980 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 22.018865][ T1231] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f29a80cb54e [ 22.018867][ T1231] RDX: 0000000000000000 RSI: 00007ffe25ecfa30 RDI: 0000000000000005 [ 22.018867][ T1231] RBP: 00007ffe25ecf990 R08: 0000000000000000 R09: 0000000000000000 [ 22.018868][ T1231] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b083 [ 22.018869][ T1231] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe25ed00f0 | [ 23.026457][ T1333] softirqs last disabled at (13676): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 23.026459][ T1333] Preemption disabled at: | [ 23.026460][ T1333] 0x0 | [ 23.026470][ T1333] Tainted: [W]=WARN [ 23.026471][ T1333] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.026473][ T1333] Call Trace: [ 23.026474][ T1333] [ 23.026476][ T1333] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.026482][ T1333] __might_resched.cold (kernel/sched/core.c:9234) [ 23.026487][ T1333] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.026491][ T1333] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.026496][ T1333] __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)) [ 23.026498][ T1333] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.026505][ T1333] ? 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) [ 23.026507][ T1333] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.026511][ T1333] put_chars (drivers/char/virtio_console.c:1176) [ 23.026513][ T1333] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.026515][ T1333] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.026518][ T1333] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.026524][ T1333] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.026532][ T1333] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.026534][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026536][ T1333] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.026540][ T1333] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.026544][ T1333] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.026546][ T1333] ? 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)) [ 23.026549][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026551][ T1333] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.026555][ T1333] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.026559][ T1333] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.026561][ T1333] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.026566][ T1333] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.026569][ T1333] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.026571][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026573][ T1333] ? 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) [ 23.026576][ T1333] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.026578][ T1333] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.026581][ T1333] vprintk_emit (kernel/printk/printk.c:2479) [ 23.026584][ T1333] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.026586][ T1333] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.026588][ T1333] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.026592][ T1333] _printk (kernel/printk/printk.c:2504) [ 23.026596][ T1333] ? snapshot_read.cold (user.c:?) [ 23.026601][ T1333] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.026605][ T1333] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 23.026609][ T1333] br_init_port (net/bridge/br_stp_if.c:39) [ 23.026612][ T1333] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 23.026614][ T1333] br_device_event (net/bridge/br.c:120) [ 23.026617][ T1333] ? packet_sendmsg_spkt (af_packet.c:?) [ 23.026619][ T1333] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 23.026625][ T1333] notifier_call_chain (kernel/notifier.c:85) [ 23.026631][ T1333] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 23.026636][ T1333] ? netif_change_name (net/core/dev.c:1517) [ 23.026640][ T1333] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 23.026643][ T1333] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 23.026646][ T1333] ? __kernel_text_address (kernel/extable.c:79) [ 23.026647][ T1333] ? write_profile (profile.c:?) [ 23.026652][ T1333] netif_change_flags (net/core/dev.c:9882) [ 23.026656][ T1333] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 23.026659][ T1333] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 23.026661][ T1333] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 23.026663][ T1333] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 23.026664][ T1333] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 23.026668][ T1333] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.026670][ T1333] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.026671][ T1333] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.026674][ T1333] ? kasan_save_stack (mm/kasan/common.c:58) [ 23.026676][ T1333] ? kasan_save_stack (mm/kasan/common.c:57) [ 23.026677][ T1333] ? kasan_save_track (mm/kasan/common.c:78) [ 23.026679][ T1333] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 23.026681][ T1333] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.026683][ T1333] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 23.026686][ T1333] ? ___sys_sendmsg (net/socket.c:2758) [ 23.026690][ T1333] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.026691][ T1333] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.026694][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026696][ T1333] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.026697][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026698][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026700][ T1333] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 23.026702][ T1333] ? __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) [ 23.026705][ T1333] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 23.026707][ T1333] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.026710][ T1333] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 23.026714][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026716][ T1333] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 23.026721][ T1333] rtnl_newlink (net/core/rtnetlink.c:4215) [ 23.026729][ T1333] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.026732][ T1333] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.026737][ T1333] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.026739][ T1333] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.026741][ T1333] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.026743][ T1333] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.026747][ T1333] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.026750][ T1333] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 23.026753][ T1333] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.026754][ T1333] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.026760][ T1333] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.026762][ T1333] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.026766][ T1333] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 23.026768][ T1333] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.026771][ T1333] ? netlink_ack (./include/linux/skbuff.h:2718) [ 23.026778][ T1333] ? 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)) [ 23.026780][ T1333] ? 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)) [ 23.026785][ T1333] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 23.026789][ T1333] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 23.026791][ T1333] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.026796][ T1333] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 23.026800][ T1333] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 23.026803][ T1333] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.026805][ T1333] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 23.026811][ T1333] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 23.026813][ T1333] ____sys_sendmsg (net/socket.c:2713) [ 23.026816][ T1333] ? copy_msghdr_from_user (net/socket.c:2650) [ 23.026818][ T1333] ? sock_write_iter (net/socket.c:1269) [ 23.026820][ T1333] ? move_addr_to_kernel (net/socket.c:258) [ 23.026827][ T1333] ___sys_sendmsg (net/socket.c:2767) [ 23.026830][ T1333] ? copy_msghdr_from_user (net/socket.c:2619) [ 23.026846][ T1333] __sys_sendmsg (net/socket.c:2799) [ 23.026848][ T1333] ? __sys_sendmsg_sock (net/socket.c:2780) [ 23.026855][ T1333] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.026858][ T1333] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 23.026861][ T1333] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 23.026863][ T1333] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 23.026865][ T1333] RIP: 0033:0x7fb9bd8a954e [ 23.026868][ T1333] 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 [ 23.026869][ T1333] RSP: 002b:00007ffec49fc5d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 23.026872][ T1333] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb9bd8a954e [ 23.026873][ T1333] RDX: 0000000000000000 RSI: 00007ffec49fc680 RDI: 0000000000000005 [ 23.026874][ T1333] RBP: 00007ffec49fc5e0 R08: 0000000000000000 R09: 0000000000000000 [ 23.026875][ T1333] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b084 [ 23.026876][ T1333] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffec49fcd40 | [ 24.461713][ T39] softirqs last disabled at (254970): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 24.461716][ T39] Preemption disabled at: | [ 24.461717][ T39] 0x0 | [ 24.461730][ T39] Tainted: [W]=WARN [ 24.461731][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.461733][ T39] Workqueue: events_unbound linkwatch_event [ 24.461737][ T39] Call Trace: [ 24.461738][ T39] [ 24.461740][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.461747][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 24.461751][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.461755][ T39] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.461760][ T39] __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)) [ 24.461762][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.461769][ T39] ? 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) [ 24.461771][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.461775][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 24.461778][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.461781][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.461784][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.461787][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.461791][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.461795][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 24.461797][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.461798][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.461803][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.461805][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.461809][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.461813][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.461817][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.461819][ T39] ? 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)) [ 24.461822][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.461824][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.461828][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.461833][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.461834][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.461840][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.461843][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.461845][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.461846][ T39] ? 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) [ 24.461850][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.461852][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.461855][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 24.461858][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.461860][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.461862][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.461866][ T39] _printk (kernel/printk/printk.c:2504) [ 24.461869][ T39] ? snapshot_read.cold (user.c:?) [ 24.461874][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.461878][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 24.461883][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 24.461885][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 24.461887][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 24.461891][ T39] br_device_event (net/bridge/br.c:101) [ 24.461894][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 24.461896][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 24.461903][ T39] notifier_call_chain (kernel/notifier.c:85) [ 24.461909][ T39] netif_state_change (net/core/dev.c:1625) [ 24.461914][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.461919][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 24.461921][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 24.461924][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.461926][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.461931][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 24.461933][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 24.461937][ T39] process_one_work (kernel/workqueue.c:3387) [ 24.461944][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 24.461947][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.461955][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 24.461962][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 24.461964][ T39] kthread (kernel/kthread.c:436) [ 24.461966][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 24.461970][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.461972][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 24.461977][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 24.461980][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 24.461984][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.461986][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 25.721268][ T1575] softirqs last disabled at (13948): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 25.721271][ T1575] Preemption disabled at: | [ 25.721271][ T1575] 0x0 | [ 25.721282][ T1575] Tainted: [W]=WARN [ 25.721283][ T1575] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.721285][ T1575] Call Trace: [ 25.721286][ T1575] [ 25.721288][ T1575] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.721295][ T1575] __might_resched.cold (kernel/sched/core.c:9234) [ 25.721300][ T1575] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.721304][ T1575] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.721309][ T1575] __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)) [ 25.721311][ T1575] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.721317][ T1575] ? 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) [ 25.721320][ T1575] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.721324][ T1575] put_chars (drivers/char/virtio_console.c:1176) [ 25.721326][ T1575] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.721327][ T1575] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.721331][ T1575] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.721336][ T1575] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.721344][ T1575] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.721347][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721349][ T1575] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.721353][ T1575] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.721357][ T1575] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.721359][ T1575] ? 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)) [ 25.721362][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721364][ T1575] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.721368][ T1575] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.721372][ T1575] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.721374][ T1575] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.721379][ T1575] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.721382][ T1575] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.721384][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721385][ T1575] ? 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) [ 25.721389][ T1575] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.721391][ T1575] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.721396][ T1575] vprintk_emit (kernel/printk/printk.c:2479) [ 25.721400][ T1575] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.721402][ T1575] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.721404][ T1575] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.721408][ T1575] _printk (kernel/printk/printk.c:2504) [ 25.721412][ T1575] ? snapshot_read.cold (user.c:?) [ 25.721417][ T1575] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.721421][ T1575] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 25.721426][ T1575] br_init_port (net/bridge/br_stp_if.c:39) [ 25.721428][ T1575] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 25.721430][ T1575] br_device_event (net/bridge/br.c:120) [ 25.721433][ T1575] ? packet_sendmsg_spkt (af_packet.c:?) [ 25.721435][ T1575] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 25.721442][ T1575] notifier_call_chain (kernel/notifier.c:85) [ 25.721448][ T1575] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 25.721453][ T1575] ? netif_change_name (net/core/dev.c:1517) [ 25.721457][ T1575] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 25.721460][ T1575] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 25.721462][ T1575] ? __kernel_text_address (kernel/extable.c:79) [ 25.721464][ T1575] ? write_profile (profile.c:?) [ 25.721469][ T1575] netif_change_flags (net/core/dev.c:9882) [ 25.721473][ T1575] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 25.721476][ T1575] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.721478][ T1575] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.721480][ T1575] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.721482][ T1575] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.721485][ T1575] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.721487][ T1575] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.721489][ T1575] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.721491][ T1575] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.721493][ T1575] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.721495][ T1575] ? kasan_save_track (mm/kasan/common.c:78) [ 25.721496][ T1575] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.721498][ T1575] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.721500][ T1575] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.721503][ T1575] ? ___sys_sendmsg (net/socket.c:2758) [ 25.721507][ T1575] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.721509][ T1575] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.721511][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721513][ T1575] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.721514][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721516][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721517][ T1575] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.721520][ T1575] ? __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) [ 25.721522][ T1575] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.721524][ T1575] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.721528][ T1575] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.721531][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721533][ T1575] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.721539][ T1575] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.721544][ T1575] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.721546][ T1575] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.721550][ T1575] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.721552][ T1575] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.721555][ T1575] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.721556][ T1575] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.721560][ T1575] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.721562][ T1575] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.721565][ T1575] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.721567][ T1575] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.721571][ T1575] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.721573][ T1575] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.721577][ T1575] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.721579][ T1575] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.721582][ T1575] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.721588][ T1575] ? 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)) [ 25.721590][ T1575] ? 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)) [ 25.721595][ T1575] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.721598][ T1575] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.721601][ T1575] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.721605][ T1575] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.721609][ T1575] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.721613][ T1575] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.721615][ T1575] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.721620][ T1575] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.721623][ T1575] ____sys_sendmsg (net/socket.c:2713) [ 25.721625][ T1575] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.721627][ T1575] ? sock_write_iter (net/socket.c:1269) [ 25.721629][ T1575] ? move_addr_to_kernel (net/socket.c:258) [ 25.721637][ T1575] ___sys_sendmsg (net/socket.c:2767) [ 25.721639][ T1575] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.721656][ T1575] __sys_sendmsg (net/socket.c:2799) [ 25.721659][ T1575] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.721665][ T1575] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.721668][ T1575] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.721671][ T1575] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.721674][ T1575] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.721676][ T1575] RIP: 0033:0x7ff65ab4054e [ 25.721678][ T1575] 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 [ 25.721680][ T1575] RSP: 002b:00007ffc6bd77e30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.721683][ T1575] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff65ab4054e [ 25.721684][ T1575] RDX: 0000000000000000 RSI: 00007ffc6bd77ee0 RDI: 0000000000000005 [ 25.721685][ T1575] RBP: 00007ffc6bd77e40 R08: 0000000000000000 R09: 0000000000000000 [ 25.721686][ T1575] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b087 [ 25.721687][ T1575] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6bd785a0 | [ 26.779342][ T1685] softirqs last disabled at (21854): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 26.779345][ T1685] Preemption disabled at: | [ 26.779345][ T1685] 0x0 | [ 26.779356][ T1685] Tainted: [W]=WARN [ 26.779357][ T1685] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.779358][ T1685] Call Trace: [ 26.779360][ T1685] [ 26.779361][ T1685] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.779368][ T1685] __might_resched.cold (kernel/sched/core.c:9234) [ 26.779372][ T1685] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.779377][ T1685] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.779381][ T1685] __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)) [ 26.779383][ T1685] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.779389][ T1685] ? 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) [ 26.779392][ T1685] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.779396][ T1685] put_chars (drivers/char/virtio_console.c:1176) [ 26.779398][ T1685] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.779404][ T1685] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.779412][ T1685] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.779415][ T1685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.779420][ T1685] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.779424][ T1685] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.779425][ T1685] ? 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)) [ 26.779429][ T1685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.779431][ T1685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.779435][ T1685] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.779440][ T1685] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.779441][ T1685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.779447][ T1685] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.779450][ T1685] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.779452][ T1685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.779453][ T1685] ? 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) [ 26.779457][ T1685] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.779459][ T1685] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.779461][ T1685] vprintk_emit (kernel/printk/printk.c:2479) [ 26.779464][ T1685] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.779466][ T1685] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 26.779468][ T1685] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.779470][ T1685] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.779474][ T1685] _printk (kernel/printk/printk.c:2504) [ 26.779478][ T1685] ? snapshot_read.cold (user.c:?) [ 26.779485][ T1685] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 26.779490][ T1685] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 26.779493][ T1685] br_device_event (net/bridge/br.c:111) [ 26.779495][ T1685] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 26.779500][ T1685] ? packet_sendmsg_spkt (af_packet.c:?) [ 26.779505][ T1685] notifier_call_chain (kernel/notifier.c:85) [ 26.779511][ T1685] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 26.779516][ T1685] ? netif_change_name (net/core/dev.c:1517) [ 26.779520][ T1685] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 26.779523][ T1685] ? __kernel_text_address (kernel/extable.c:79) [ 26.779526][ T1685] ? write_profile (profile.c:?) [ 26.779531][ T1685] netif_change_flags (net/core/dev.c:9882) [ 26.779535][ T1685] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 26.779538][ T1685] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.779540][ T1685] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.779541][ T1685] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.779543][ T1685] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.779547][ T1685] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.779549][ T1685] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.779550][ T1685] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.779553][ T1685] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.779555][ T1685] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.779556][ T1685] ? kasan_save_track (mm/kasan/common.c:78) [ 26.779558][ T1685] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 26.779560][ T1685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.779562][ T1685] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 26.779565][ T1685] ? ___sys_sendmsg (net/socket.c:2758) [ 26.779568][ T1685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.779570][ T1685] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.779573][ T1685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.779575][ T1685] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.779576][ T1685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.779577][ T1685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.779579][ T1685] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.779581][ T1685] ? __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) [ 26.779583][ T1685] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.779585][ T1685] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.779588][ T1685] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.779591][ T1685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.779594][ T1685] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.779599][ T1685] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.779604][ T1685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.779606][ T1685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.779610][ T1685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.779612][ T1685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.779615][ T1685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.779616][ T1685] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.779620][ T1685] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.779622][ T1685] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.779625][ T1685] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.779627][ T1685] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.779631][ T1685] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.779633][ T1685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.779636][ T1685] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.779640][ T1685] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.779642][ T1685] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.779649][ T1685] ? 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)) [ 26.779651][ T1685] ? 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)) [ 26.779655][ T1685] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.779659][ T1685] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.779662][ T1685] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.779666][ T1685] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.779670][ T1685] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.779674][ T1685] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.779675][ T1685] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.779681][ T1685] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.779684][ T1685] ____sys_sendmsg (net/socket.c:2713) [ 26.779686][ T1685] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.779688][ T1685] ? sock_write_iter (net/socket.c:1269) [ 26.779690][ T1685] ? move_addr_to_kernel (net/socket.c:258) [ 26.779697][ T1685] ___sys_sendmsg (net/socket.c:2767) [ 26.779700][ T1685] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.779716][ T1685] __sys_sendmsg (net/socket.c:2799) [ 26.779719][ T1685] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.779727][ T1685] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.779731][ T1685] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.779734][ T1685] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.779736][ T1685] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.779739][ T1685] RIP: 0033:0x7f97bd73154e [ 26.779741][ T1685] 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 [ 26.779742][ T1685] RSP: 002b:00007ffc4bf4af10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.779745][ T1685] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f97bd73154e [ 26.779746][ T1685] RDX: 0000000000000000 RSI: 00007ffc4bf4afc0 RDI: 0000000000000005 [ 26.779747][ T1685] RBP: 00007ffc4bf4af20 R08: 0000000000000000 R09: 0000000000000000 [ 26.779748][ T1685] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b088 [ 26.779749][ T1685] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc4bf4b680 | [ 28.220587][ T1801] softirqs last disabled at (14188): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 28.220589][ T1801] Preemption disabled at: | [ 28.220590][ T1801] 0x0 | [ 28.220600][ T1801] Tainted: [W]=WARN [ 28.220601][ T1801] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.220603][ T1801] Call Trace: [ 28.220605][ T1801] [ 28.220606][ T1801] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.220613][ T1801] __might_resched.cold (kernel/sched/core.c:9234) [ 28.220617][ T1801] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.220622][ T1801] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.220626][ T1801] __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)) [ 28.220628][ T1801] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.220634][ T1801] ? 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) [ 28.220637][ T1801] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.220641][ T1801] put_chars (drivers/char/virtio_console.c:1176) [ 28.220644][ T1801] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.220650][ T1801] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.220658][ T1801] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.220661][ T1801] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.220665][ T1801] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.220669][ T1801] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.220671][ T1801] ? 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)) [ 28.220674][ T1801] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.220677][ T1801] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.220681][ T1801] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.220685][ T1801] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.220687][ T1801] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.220692][ T1801] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.220695][ T1801] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.220697][ T1801] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.220699][ T1801] ? 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) [ 28.220703][ T1801] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.220704][ T1801] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.220707][ T1801] vprintk_emit (kernel/printk/printk.c:2479) [ 28.220711][ T1801] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.220712][ T1801] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 28.220714][ T1801] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.220716][ T1801] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.220721][ T1801] _printk (kernel/printk/printk.c:2504) [ 28.220724][ T1801] ? snapshot_read.cold (user.c:?) [ 28.220735][ T1801] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 28.220742][ T1801] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 28.220748][ T1801] br_device_event (net/bridge/br.c:111) [ 28.220751][ T1801] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 28.220756][ T1801] ? packet_sendmsg_spkt (af_packet.c:?) [ 28.220765][ T1801] notifier_call_chain (kernel/notifier.c:85) [ 28.220774][ T1801] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 28.220781][ T1801] ? netif_change_name (net/core/dev.c:1517) [ 28.220786][ T1801] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 28.220791][ T1801] ? __kernel_text_address (kernel/extable.c:79) [ 28.220793][ T1801] ? write_profile (profile.c:?) [ 28.220800][ T1801] netif_change_flags (net/core/dev.c:9882) [ 28.220805][ T1801] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 28.220809][ T1801] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.220812][ T1801] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.220813][ T1801] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.220815][ T1801] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.220819][ T1801] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.220821][ T1801] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.220823][ T1801] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.220826][ T1801] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.220829][ T1801] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.220830][ T1801] ? kasan_save_track (mm/kasan/common.c:78) [ 28.220832][ T1801] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.220835][ T1801] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.220837][ T1801] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.220840][ T1801] ? ___sys_sendmsg (net/socket.c:2758) [ 28.220844][ T1801] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.220846][ T1801] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.220848][ T1801] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.220850][ T1801] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.220852][ T1801] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.220853][ T1801] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.220854][ T1801] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.220857][ T1801] ? __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) [ 28.220858][ T1801] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.220860][ T1801] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.220863][ T1801] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.220867][ T1801] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.220869][ T1801] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.220874][ T1801] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.220880][ T1801] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.220882][ T1801] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.220886][ T1801] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.220888][ T1801] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.220890][ T1801] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.220892][ T1801] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.220896][ T1801] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.220898][ T1801] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.220901][ T1801] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.220902][ T1801] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.220907][ T1801] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.220908][ T1801] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.220912][ T1801] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.220915][ T1801] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.220918][ T1801] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.220924][ T1801] ? 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)) [ 28.220927][ T1801] ? 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)) [ 28.220931][ T1801] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.220935][ T1801] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.220938][ T1801] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.220942][ T1801] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.220946][ T1801] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.220950][ T1801] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.220951][ T1801] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.220957][ T1801] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.220960][ T1801] ____sys_sendmsg (net/socket.c:2713) [ 28.220962][ T1801] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.220964][ T1801] ? sock_write_iter (net/socket.c:1269) [ 28.220966][ T1801] ? move_addr_to_kernel (net/socket.c:258) [ 28.220973][ T1801] ___sys_sendmsg (net/socket.c:2767) [ 28.220976][ T1801] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.220992][ T1801] __sys_sendmsg (net/socket.c:2799) [ 28.220995][ T1801] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.221001][ T1801] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.221004][ T1801] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.221007][ T1801] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.221010][ T1801] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.221012][ T1801] RIP: 0033:0x7f115f5a654e [ 28.221014][ T1801] 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 [ 28.221016][ T1801] RSP: 002b:00007ffc121b7710 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.221018][ T1801] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f115f5a654e [ 28.221020][ T1801] RDX: 0000000000000000 RSI: 00007ffc121b77c0 RDI: 0000000000000005 [ 28.221021][ T1801] RBP: 00007ffc121b7720 R08: 0000000000000000 R09: 0000000000000000 [ 28.221021][ T1801] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b089 [ 28.221022][ T1801] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc121b7e80 | [ 29.289818][ T1901] softirqs last disabled at (22436): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 29.289821][ T1901] Preemption disabled at: | [ 29.289822][ T1901] 0x0 | [ 29.289835][ T1901] Tainted: [W]=WARN [ 29.289837][ T1901] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.289839][ T1901] Call Trace: [ 29.289841][ T1901] [ 29.289843][ T1901] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.289852][ T1901] __might_resched.cold (kernel/sched/core.c:9234) [ 29.289858][ T1901] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.289864][ T1901] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 29.289871][ T1901] __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)) [ 29.289874][ T1901] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.289884][ T1901] ? 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) [ 29.289887][ T1901] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.289893][ T1901] put_chars (drivers/char/virtio_console.c:1176) [ 29.289897][ T1901] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.289908][ T1901] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.289920][ T1901] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.289926][ T1901] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.289933][ T1901] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.289939][ T1901] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.289942][ T1901] ? 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)) [ 29.289947][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.289951][ T1901] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.289958][ T1901] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.289965][ T1901] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.289968][ T1901] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.289971][ T1901] ? write_ibpb (arch/x86/entry/entry.S:25) [ 29.289981][ T1901] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.289986][ T1901] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.289989][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.289992][ T1901] ? 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) [ 29.289999][ T1901] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.290002][ T1901] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.290007][ T1901] vprintk_emit (kernel/printk/printk.c:2479) [ 29.290012][ T1901] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.290014][ T1901] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 29.290019][ T1901] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.290022][ T1901] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.290029][ T1901] _printk (kernel/printk/printk.c:2504) [ 29.290034][ T1901] ? snapshot_read.cold (user.c:?) [ 29.290048][ T1901] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 29.290056][ T1901] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 29.290062][ T1901] br_device_event (net/bridge/br.c:111) [ 29.290065][ T1901] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 29.290077][ T1901] ? packet_sendmsg_spkt (af_packet.c:?) [ 29.290087][ T1901] notifier_call_chain (kernel/notifier.c:85) [ 29.290097][ T1901] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 29.290105][ T1901] ? netif_change_name (net/core/dev.c:1517) [ 29.290111][ T1901] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 29.290117][ T1901] ? __kernel_text_address (kernel/extable.c:79) [ 29.290120][ T1901] ? write_profile (profile.c:?) [ 29.290128][ T1901] netif_change_flags (net/core/dev.c:9882) [ 29.290135][ T1901] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 29.290141][ T1901] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 29.290145][ T1901] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 29.290147][ T1901] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 29.290150][ T1901] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 29.290155][ T1901] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.290158][ T1901] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.290162][ T1901] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.290166][ T1901] ? kasan_save_stack (mm/kasan/common.c:58) [ 29.290169][ T1901] ? kasan_save_stack (mm/kasan/common.c:57) [ 29.290171][ T1901] ? kasan_save_track (mm/kasan/common.c:78) [ 29.290173][ T1901] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 29.290177][ T1901] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.290181][ T1901] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 29.290185][ T1901] ? ___sys_sendmsg (net/socket.c:2758) [ 29.290191][ T1901] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.290194][ T1901] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.290199][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.290202][ T1901] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.290204][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.290206][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.290209][ T1901] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 29.290213][ T1901] ? __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) [ 29.290216][ T1901] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 29.290219][ T1901] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.290225][ T1901] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 29.290232][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.290236][ T1901] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 29.290246][ T1901] rtnl_newlink (net/core/rtnetlink.c:4215) [ 29.290256][ T1901] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.290259][ T1901] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.290268][ T1901] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.290271][ T1901] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.290274][ T1901] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.290278][ T1901] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.290284][ T1901] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.290288][ T1901] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 29.290294][ T1901] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.290296][ T1901] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.290304][ T1901] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.290307][ T1901] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.290314][ T1901] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 29.290318][ T1901] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.290323][ T1901] ? netlink_ack (./include/linux/skbuff.h:2718) [ 29.290335][ T1901] ? 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)) [ 29.290338][ T1901] ? 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)) [ 29.290346][ T1901] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 29.290353][ T1901] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 29.290357][ T1901] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.290366][ T1901] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 29.290373][ T1901] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 29.290379][ T1901] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.290382][ T1901] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 29.290391][ T1901] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 29.290396][ T1901] ____sys_sendmsg (net/socket.c:2713) [ 29.290399][ T1901] ? copy_msghdr_from_user (net/socket.c:2650) [ 29.290403][ T1901] ? sock_write_iter (net/socket.c:1269) [ 29.290405][ T1901] ? move_addr_to_kernel (net/socket.c:258) [ 29.290419][ T1901] ___sys_sendmsg (net/socket.c:2767) [ 29.290424][ T1901] ? copy_msghdr_from_user (net/socket.c:2619) [ 29.290455][ T1901] __sys_sendmsg (net/socket.c:2799) [ 29.290460][ T1901] ? __sys_sendmsg_sock (net/socket.c:2780) [ 29.290471][ T1901] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.290477][ T1901] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 29.290480][ T1901] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 29.290485][ T1901] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 29.290489][ T1901] RIP: 0033:0x7fbd8512454e [ 29.290492][ T1901] 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 [ 29.290494][ T1901] RSP: 002b:00007ffc97aa9cb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 29.290498][ T1901] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd8512454e [ 29.290500][ T1901] RDX: 0000000000000000 RSI: 00007ffc97aa9d60 RDI: 0000000000000005 [ 29.290502][ T1901] RBP: 00007ffc97aa9cc0 R08: 0000000000000000 R09: 0000000000000000 [ 29.290503][ T1901] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b08a [ 29.290504][ T1901] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc97aaa420 | [ 30.594791][ T641] softirqs last disabled at (119334): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 30.594794][ T641] Preemption disabled at: | [ 30.594794][ T641] 0x0 | [ 30.594805][ T641] Tainted: [W]=WARN [ 30.594806][ T641] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.594808][ T641] Workqueue: events_unbound linkwatch_event [ 30.594811][ T641] Call Trace: [ 30.594813][ T641] [ 30.594815][ T641] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.594822][ T641] __might_resched.cold (kernel/sched/core.c:9234) [ 30.594826][ T641] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.594830][ T641] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.594835][ T641] __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)) [ 30.594837][ T641] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.594844][ T641] ? 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) [ 30.594847][ T641] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.594851][ T641] put_chars (drivers/char/virtio_console.c:1176) [ 30.594853][ T641] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.594856][ T641] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.594859][ T641] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.594862][ T641] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.594867][ T641] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.594871][ T641] ? mark_usage (kernel/locking/lockdep.c:4690) [ 30.594873][ T641] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.594875][ T641] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.594880][ T641] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.594881][ T641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.594886][ T641] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.594890][ T641] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.594895][ T641] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.594897][ T641] ? 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)) [ 30.594900][ T641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.594902][ T641] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.594907][ T641] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.594911][ T641] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.594913][ T641] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.594919][ T641] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.594922][ T641] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.594924][ T641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.594926][ T641] ? 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) [ 30.594930][ T641] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.594932][ T641] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.594935][ T641] vprintk_emit (kernel/printk/printk.c:2479) [ 30.594938][ T641] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.594940][ T641] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.594942][ T641] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.594946][ T641] _printk (kernel/printk/printk.c:2504) [ 30.594950][ T641] ? snapshot_read.cold (user.c:?) [ 30.594956][ T641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.594960][ T641] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 30.594964][ T641] br_init_port (net/bridge/br_stp_if.c:39) [ 30.594967][ T641] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 30.594969][ T641] br_port_carrier_check (net/bridge/br_if.c:90) [ 30.594973][ T641] br_device_event (net/bridge/br.c:101) [ 30.594976][ T641] ? packet_sendmsg_spkt (af_packet.c:?) [ 30.594978][ T641] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 30.594986][ T641] notifier_call_chain (kernel/notifier.c:85) [ 30.594992][ T641] netif_state_change (net/core/dev.c:1625) [ 30.594997][ T641] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 30.595002][ T641] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 30.595005][ T641] __linkwatch_run_queue (net/core/link_watch.c:240) [ 30.595008][ T641] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 30.595011][ T641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.595015][ T641] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 30.595018][ T641] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 30.595021][ T641] process_one_work (kernel/workqueue.c:3387) [ 30.595028][ T641] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 30.595031][ T641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.595040][ T641] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 30.595044][ T641] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 30.595046][ T641] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 30.595049][ T641] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 30.595052][ T641] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 30.595054][ T641] kthread (kernel/kthread.c:436) [ 30.595057][ T641] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 30.595060][ T641] ? kthread_affine_preferred (kernel/kthread.c:857) [ 30.595063][ T641] ret_from_fork (arch/x86/kernel/process.c:158) [ 30.595067][ T641] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 30.595071][ T641] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 30.595082][ T641] ? kthread_affine_preferred (kernel/kthread.c:857) [ 30.595086][ T641] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 32.204911][ T2129] softirqs last disabled at (13966): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 32.204913][ T2129] Preemption disabled at: | [ 32.204914][ T2129] 0x0 | [ 32.204924][ T2129] Tainted: [W]=WARN [ 32.204925][ T2129] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.204927][ T2129] Call Trace: [ 32.204928][ T2129] [ 32.204930][ T2129] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 32.204936][ T2129] __might_resched.cold (kernel/sched/core.c:9234) [ 32.204941][ T2129] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 32.204945][ T2129] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 32.204949][ T2129] __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)) [ 32.204951][ T2129] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 32.204958][ T2129] ? 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) [ 32.204960][ T2129] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 32.204964][ T2129] put_chars (drivers/char/virtio_console.c:1176) [ 32.204966][ T2129] ? __send_to_port (drivers/char/virtio_console.c:654) [ 32.204968][ T2129] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.204971][ T2129] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 32.204977][ T2129] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 32.204984][ T2129] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 32.204987][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.204989][ T2129] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.204993][ T2129] console_emit_next_record (kernel/printk/printk.c:3183) [ 32.204997][ T2129] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 32.204999][ T2129] ? 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)) [ 32.205002][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.205003][ T2129] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.205007][ T2129] console_flush_one_record (kernel/printk/printk.c:3268) [ 32.205011][ T2129] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 32.205013][ T2129] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.205019][ T2129] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 32.205021][ T2129] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 32.205023][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.205025][ T2129] ? 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) [ 32.205029][ T2129] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 32.205030][ T2129] ? vprintk_emit (kernel/printk/printk.c:2478) [ 32.205033][ T2129] vprintk_emit (kernel/printk/printk.c:2479) [ 32.205036][ T2129] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 32.205038][ T2129] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.205040][ T2129] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 32.205045][ T2129] _printk (kernel/printk/printk.c:2504) [ 32.205049][ T2129] ? snapshot_read.cold (user.c:?) [ 32.205054][ T2129] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.205057][ T2129] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 32.205062][ T2129] br_init_port (net/bridge/br_stp_if.c:39) [ 32.205065][ T2129] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 32.205067][ T2129] br_device_event (net/bridge/br.c:120) [ 32.205069][ T2129] ? packet_sendmsg_spkt (af_packet.c:?) [ 32.205071][ T2129] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 32.205078][ T2129] notifier_call_chain (kernel/notifier.c:85) [ 32.205090][ T2129] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 32.205096][ T2129] ? netif_change_name (net/core/dev.c:1517) [ 32.205099][ T2129] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 32.205102][ T2129] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 32.205105][ T2129] ? __kernel_text_address (kernel/extable.c:79) [ 32.205106][ T2129] ? write_profile (profile.c:?) [ 32.205111][ T2129] netif_change_flags (net/core/dev.c:9882) [ 32.205115][ T2129] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 32.205118][ T2129] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 32.205121][ T2129] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 32.205122][ T2129] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 32.205124][ T2129] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 32.205127][ T2129] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.205129][ T2129] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 32.205131][ T2129] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 32.205133][ T2129] ? kasan_save_stack (mm/kasan/common.c:58) [ 32.205136][ T2129] ? kasan_save_stack (mm/kasan/common.c:57) [ 32.205137][ T2129] ? kasan_save_track (mm/kasan/common.c:78) [ 32.205138][ T2129] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 32.205140][ T2129] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.205142][ T2129] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 32.205145][ T2129] ? ___sys_sendmsg (net/socket.c:2758) [ 32.205149][ T2129] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.205151][ T2129] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 32.205154][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.205155][ T2129] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.205157][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.205158][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.205160][ T2129] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 32.205162][ T2129] ? __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) [ 32.205165][ T2129] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 32.205167][ T2129] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 32.205170][ T2129] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 32.205174][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.205176][ T2129] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 32.205181][ T2129] rtnl_newlink (net/core/rtnetlink.c:4215) [ 32.205186][ T2129] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.205188][ T2129] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.205192][ T2129] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.205194][ T2129] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.205197][ T2129] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.205198][ T2129] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 32.205202][ T2129] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.205204][ T2129] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 32.205207][ T2129] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 32.205209][ T2129] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.205213][ T2129] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.205215][ T2129] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.205218][ T2129] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 32.205220][ T2129] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 32.205223][ T2129] ? netlink_ack (./include/linux/skbuff.h:2718) [ 32.205231][ T2129] ? 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)) [ 32.205233][ T2129] ? 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)) [ 32.205238][ T2129] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 32.205242][ T2129] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 32.205244][ T2129] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.205249][ T2129] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 32.205253][ T2129] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 32.205256][ T2129] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 32.205258][ T2129] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 32.205263][ T2129] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 32.205266][ T2129] ____sys_sendmsg (net/socket.c:2713) [ 32.205268][ T2129] ? copy_msghdr_from_user (net/socket.c:2650) [ 32.205271][ T2129] ? sock_write_iter (net/socket.c:1269) [ 32.205272][ T2129] ? move_addr_to_kernel (net/socket.c:258) [ 32.205280][ T2129] ___sys_sendmsg (net/socket.c:2767) [ 32.205282][ T2129] ? copy_msghdr_from_user (net/socket.c:2619) [ 32.205298][ T2129] __sys_sendmsg (net/socket.c:2799) [ 32.205301][ T2129] ? __sys_sendmsg_sock (net/socket.c:2780) [ 32.205308][ T2129] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.205311][ T2129] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 32.205314][ T2129] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 32.205316][ T2129] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 32.205319][ T2129] RIP: 0033:0x7ff35b49754e [ 32.205321][ T2129] 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 [ 32.205323][ T2129] RSP: 002b:00007ffd663d24f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 32.205325][ T2129] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff35b49754e [ 32.205327][ T2129] RDX: 0000000000000000 RSI: 00007ffd663d25a0 RDI: 0000000000000005 [ 32.205328][ T2129] RBP: 00007ffd663d2500 R08: 0000000000000000 R09: 0000000000000000 [ 32.205328][ T2129] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b08d [ 32.205329][ T2129] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd663d2c60 | [ 33.876492][ T36] softirqs last disabled at (299418): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 33.876496][ T36] Preemption disabled at: | [ 33.876497][ T36] 0x0 | [ 33.876511][ T36] Tainted: [W]=WARN [ 33.876512][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.876515][ T36] Workqueue: events_unbound linkwatch_event [ 33.876519][ T36] Call Trace: [ 33.876521][ T36] [ 33.876523][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.876533][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 33.876539][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.876544][ 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) [ 33.876551][ 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)) [ 33.876555][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.876564][ 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) [ 33.876568][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.876574][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 33.876579][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.876583][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.876588][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.876592][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.876599][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.876604][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 33.876607][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.876609][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.876617][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.876620][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.876627][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.876635][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.876641][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.876644][ 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)) [ 33.876650][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.876653][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.876660][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.876668][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.876671][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.876681][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.876685][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.876688][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.876691][ 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) [ 33.876698][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.876701][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.876706][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 33.876712][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.876715][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.876719][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.876728][ T36] _printk (kernel/printk/printk.c:2504) [ 33.876734][ T36] ? snapshot_read.cold (user.c:?) [ 33.876743][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.876750][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 33.876757][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 33.876761][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 33.876764][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 33.876770][ T36] br_device_event (net/bridge/br.c:101) [ 33.876775][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 33.876778][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 33.876789][ T36] notifier_call_chain (kernel/notifier.c:85) [ 33.876799][ T36] netif_state_change (net/core/dev.c:1625) [ 33.876806][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 33.876814][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 33.876818][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 33.876823][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 33.876828][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.876835][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 33.876839][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 33.876845][ T36] process_one_work (kernel/workqueue.c:3387) [ 33.876857][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 33.876862][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.876876][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 33.876888][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.876892][ T36] kthread (kernel/kthread.c:436) [ 33.876895][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 33.876899][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.876904][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 33.876910][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 33.876916][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 33.876921][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.876926][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 34.920682][ T202] softirqs last disabled at (50136): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 34.920685][ T202] Preemption disabled at: | [ 34.920685][ T202] 0x0 | [ 34.920696][ T202] Tainted: [W]=WARN [ 34.920697][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.920699][ T202] Workqueue: events_unbound linkwatch_event [ 34.920702][ T202] Call Trace: [ 34.920704][ T202] [ 34.920705][ T202] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.920712][ T202] __might_resched.cold (kernel/sched/core.c:9234) [ 34.920717][ T202] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.920721][ T202] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.920728][ T202] __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)) [ 34.920730][ T202] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.920737][ T202] ? 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) [ 34.920740][ T202] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.920744][ T202] put_chars (drivers/char/virtio_console.c:1176) [ 34.920746][ T202] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.920749][ T202] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.920752][ T202] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.920755][ T202] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.920760][ T202] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.920764][ T202] ? mark_usage (kernel/locking/lockdep.c:4690) [ 34.920766][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.920767][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.920772][ T202] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.920774][ T202] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.920778][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.920782][ T202] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.920787][ T202] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.920789][ T202] ? 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)) [ 34.920792][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.920794][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.920798][ T202] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.920802][ T202] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.920804][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.920810][ T202] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.920813][ T202] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.920815][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.920817][ T202] ? 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) [ 34.920821][ T202] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.920822][ T202] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.920825][ T202] vprintk_emit (kernel/printk/printk.c:2479) [ 34.920829][ T202] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.920831][ T202] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.920833][ T202] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.920837][ T202] _printk (kernel/printk/printk.c:2504) [ 34.920840][ T202] ? snapshot_read.cold (user.c:?) [ 34.920846][ T202] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.920850][ T202] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.920854][ T202] br_init_port (net/bridge/br_stp_if.c:39) [ 34.920857][ T202] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 34.920859][ T202] br_port_carrier_check (net/bridge/br_if.c:90) [ 34.920863][ T202] br_device_event (net/bridge/br.c:101) [ 34.920867][ T202] ? packet_sendmsg_spkt (af_packet.c:?) [ 34.920868][ T202] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 34.920876][ T202] notifier_call_chain (kernel/notifier.c:85) [ 34.920882][ T202] netif_state_change (net/core/dev.c:1625) [ 34.920887][ T202] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.920892][ T202] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 34.920894][ T202] __linkwatch_run_queue (net/core/link_watch.c:240) [ 34.920897][ T202] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.920900][ T202] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.920904][ T202] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 34.920907][ T202] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 34.920910][ T202] process_one_work (kernel/workqueue.c:3387) [ 34.920917][ T202] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 34.920920][ T202] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.920928][ T202] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 34.920932][ T202] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 34.920934][ T202] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 34.920937][ T202] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 34.920940][ T202] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 34.920942][ T202] kthread (kernel/kthread.c:436) [ 34.920945][ T202] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 34.920948][ T202] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.920951][ T202] ret_from_fork (arch/x86/kernel/process.c:158) [ 34.920956][ T202] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 34.920959][ T202] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 34.920963][ T202] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.920966][ T202] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 36.366529][ T39] softirqs last disabled at (435480): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 36.366532][ T39] Preemption disabled at: | [ 36.366532][ T39] 0x0 | [ 36.366543][ T39] Tainted: [W]=WARN [ 36.366544][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 36.366545][ T39] Workqueue: events_unbound linkwatch_event [ 36.366548][ T39] Call Trace: [ 36.366550][ T39] [ 36.366551][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 36.366558][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 36.366562][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 36.366566][ T39] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 36.366570][ T39] __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)) [ 36.366572][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.366579][ T39] ? 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) [ 36.366581][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.366585][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 36.366588][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 36.366590][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.366593][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.366596][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 36.366600][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 36.366604][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 36.366606][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.366608][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.366612][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 36.366614][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.366618][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.366623][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 36.366627][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 36.366628][ T39] ? 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)) [ 36.366632][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.366634][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.366638][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 36.366642][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 36.366644][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.366650][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 36.366652][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 36.366654][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.366656][ T39] ? 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) [ 36.366660][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 36.366662][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 36.366664][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 36.366667][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 36.366670][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.366672][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.366675][ T39] _printk (kernel/printk/printk.c:2504) [ 36.366679][ T39] ? snapshot_read.cold (user.c:?) [ 36.366684][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.366688][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 36.366692][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 36.366695][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 36.366697][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 36.366700][ T39] br_device_event (net/bridge/br.c:101) [ 36.366704][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 36.366705][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 36.366713][ T39] notifier_call_chain (kernel/notifier.c:85) [ 36.366718][ T39] netif_state_change (net/core/dev.c:1625) [ 36.366723][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 36.366731][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 36.366733][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 36.366736][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 36.366739][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.366743][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 36.366746][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 36.366749][ T39] process_one_work (kernel/workqueue.c:3387) [ 36.366756][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 36.366759][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.366766][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 36.366773][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 36.366775][ T39] kthread (kernel/kthread.c:436) [ 36.366778][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 36.366781][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.366784][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 36.366788][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 36.366792][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 36.366795][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.366798][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 37.854252][ T39] softirqs last disabled at (456056): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 37.854254][ T39] Preemption disabled at: | [ 37.854255][ T39] 0x0 | [ 37.854266][ T39] Tainted: [W]=WARN [ 37.854267][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.854268][ T39] Workqueue: events_unbound linkwatch_event [ 37.854272][ T39] Call Trace: [ 37.854273][ T39] [ 37.854276][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 37.854282][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 37.854287][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 37.854291][ T39] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 37.854296][ T39] __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)) [ 37.854298][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.854304][ T39] ? 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) [ 37.854307][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.854311][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 37.854313][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 37.854316][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.854319][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.854322][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 37.854326][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 37.854330][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 37.854332][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.854334][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.854338][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 37.854340][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.854345][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.854349][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 37.854353][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 37.854355][ T39] ? 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)) [ 37.854358][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.854360][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.854364][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 37.854368][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 37.854370][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.854375][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 37.854378][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 37.854380][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.854382][ T39] ? 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) [ 37.854386][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 37.854387][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 37.854390][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 37.854393][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 37.854395][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.854397][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.854401][ T39] _printk (kernel/printk/printk.c:2504) [ 37.854405][ T39] ? snapshot_read.cold (user.c:?) [ 37.854410][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.854414][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 37.854418][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 37.854421][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 37.854423][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 37.854427][ T39] br_device_event (net/bridge/br.c:101) [ 37.854430][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 37.854432][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 37.854439][ T39] notifier_call_chain (kernel/notifier.c:85) [ 37.854445][ T39] netif_state_change (net/core/dev.c:1625) [ 37.854450][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 37.854455][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 37.854457][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 37.854460][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 37.854462][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.854467][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 37.854469][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 37.854472][ T39] process_one_work (kernel/workqueue.c:3387) [ 37.854479][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 37.854482][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.854490][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 37.854497][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 37.854499][ T39] kthread (kernel/kthread.c:436) [ 37.854502][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 37.854505][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 37.854508][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 37.854512][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 37.854516][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 37.854519][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 37.854522][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 38.899257][ T39] softirqs last disabled at (478228): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 38.899259][ T39] Preemption disabled at: | [ 38.899260][ T39] 0x0 | [ 38.899271][ T39] Tainted: [W]=WARN [ 38.899271][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.899273][ T39] Workqueue: events_unbound linkwatch_event [ 38.899277][ T39] Call Trace: [ 38.899279][ T39] [ 38.899280][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.899287][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 38.899292][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.899297][ T39] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 38.899301][ T39] __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)) [ 38.899303][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.899310][ T39] ? 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) [ 38.899313][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.899317][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 38.899320][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.899322][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.899325][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.899328][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.899333][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.899336][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 38.899338][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.899340][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.899344][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.899346][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.899351][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.899355][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.899359][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.899361][ T39] ? 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)) [ 38.899365][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.899367][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.899371][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.899375][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.899377][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.899383][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.899386][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.899387][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.899389][ T39] ? 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) [ 38.899393][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.899395][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.899398][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 38.899401][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.899403][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.899405][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.899409][ T39] _printk (kernel/printk/printk.c:2504) [ 38.899413][ T39] ? snapshot_read.cold (user.c:?) [ 38.899418][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.899422][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 38.899426][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 38.899429][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 38.899431][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 38.899435][ T39] br_device_event (net/bridge/br.c:101) [ 38.899438][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 38.899440][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 38.899447][ T39] notifier_call_chain (kernel/notifier.c:85) [ 38.899453][ T39] netif_state_change (net/core/dev.c:1625) [ 38.899458][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 38.899463][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 38.899465][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 38.899468][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 38.899471][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.899475][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 38.899478][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 38.899481][ T39] process_one_work (kernel/workqueue.c:3387) [ 38.899488][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 38.899491][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.899499][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 38.899506][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 38.899508][ T39] kthread (kernel/kthread.c:436) [ 38.899510][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 38.899514][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.899517][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 38.899521][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 38.899524][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 38.899528][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.899531][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 40.079975][ T2715] softirqs last disabled at (14244): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 40.079977][ T2715] Preemption disabled at: | [ 40.079977][ T2715] vprintk_emit (kernel/printk/printk.c:2471) | [ 40.079986][ T2715] Tainted: [W]=WARN [ 40.079987][ T2715] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.079989][ T2715] Call Trace: [ 40.079990][ T2715] [ 40.079992][ T2715] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 40.079998][ T2715] ? vprintk_emit (kernel/printk/printk.c:2471) [ 40.079999][ T2715] __might_resched.cold (kernel/sched/core.c:9234) [ 40.080004][ T2715] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 40.080008][ T2715] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 40.080012][ T2715] __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)) [ 40.080014][ T2715] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.080021][ T2715] ? 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) [ 40.080024][ T2715] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.080027][ T2715] put_chars (drivers/char/virtio_console.c:1176) [ 40.080030][ T2715] ? __send_to_port (drivers/char/virtio_console.c:654) [ 40.080033][ T2715] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 40.080038][ T2715] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 40.080046][ T2715] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 40.080049][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080051][ T2715] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.080055][ T2715] console_emit_next_record (kernel/printk/printk.c:3183) [ 40.080059][ T2715] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 40.080061][ T2715] ? 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)) [ 40.080065][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080066][ T2715] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.080070][ T2715] console_flush_one_record (kernel/printk/printk.c:3268) [ 40.080075][ T2715] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 40.080077][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.080082][ T2715] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 40.080085][ T2715] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 40.080087][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080088][ T2715] ? 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) [ 40.080092][ T2715] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 40.080094][ T2715] ? vprintk_emit (kernel/printk/printk.c:2478) [ 40.080097][ T2715] vprintk_emit (kernel/printk/printk.c:2479) [ 40.080100][ T2715] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 40.080101][ T2715] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 40.080102][ T2715] ? netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 40.080105][ T2715] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 40.080107][ T2715] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 40.080109][ T2715] ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 40.080111][ T2715] ? ____sys_sendmsg (net/socket.c:2713) [ 40.080118][ T2715] ? ___sys_sendmsg (net/socket.c:2767) [ 40.080121][ T2715] _printk (kernel/printk/printk.c:2504) [ 40.080125][ T2715] ? snapshot_read.cold (user.c:?) [ 40.080129][ T2715] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 40.080133][ T2715] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 40.080137][ T2715] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 40.080140][ T2715] ? netdev_notice (net/core/dev.c:13194) [ 40.080144][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080146][ T2715] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 40.080149][ T2715] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 40.080151][ T2715] ? 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) [ 40.080153][ T2715] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 40.080157][ T2715] dev_set_allmulti (net/core/dev_api.c:315) [ 40.080161][ T2715] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 40.080167][ T2715] br_del_if (net/bridge/br_if.c:732) [ 40.080169][ T2715] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 40.080172][ T2715] do_set_master (net/core/rtnetlink.c:3055) [ 40.080176][ T2715] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 40.080179][ T2715] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 40.080183][ T2715] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 40.080184][ T2715] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 40.080187][ T2715] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 40.080190][ T2715] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.080192][ T2715] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.080194][ T2715] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 40.080196][ T2715] ? kasan_save_stack (mm/kasan/common.c:58) [ 40.080199][ T2715] ? kasan_save_stack (mm/kasan/common.c:57) [ 40.080200][ T2715] ? kasan_save_track (mm/kasan/common.c:78) [ 40.080201][ T2715] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 40.080204][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.080206][ T2715] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 40.080208][ T2715] ? ___sys_sendmsg (net/socket.c:2758) [ 40.080211][ T2715] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.080213][ T2715] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 40.080216][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080218][ T2715] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.080219][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080220][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080222][ T2715] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 40.080224][ T2715] ? __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) [ 40.080227][ T2715] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 40.080229][ T2715] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 40.080233][ T2715] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 40.080234][ T2715] ? nla_get_range_signed (lib/nlattr.c:270) [ 40.080239][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080241][ T2715] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 40.080247][ T2715] rtnl_newlink (net/core/rtnetlink.c:4215) [ 40.080252][ T2715] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.080254][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.080258][ T2715] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.080260][ T2715] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.080263][ T2715] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.080264][ T2715] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.080268][ T2715] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.080270][ T2715] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 40.080273][ T2715] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 40.080275][ T2715] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.080279][ T2715] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.080281][ T2715] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.080285][ T2715] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 40.080286][ T2715] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 40.080289][ T2715] ? netlink_ack (./include/linux/skbuff.h:2718) [ 40.080296][ T2715] ? 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)) [ 40.080298][ T2715] ? 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)) [ 40.080302][ T2715] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 40.080306][ T2715] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 40.080309][ T2715] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.080313][ T2715] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 40.080317][ T2715] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 40.080321][ T2715] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.080323][ T2715] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 40.080328][ T2715] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 40.080331][ T2715] ____sys_sendmsg (net/socket.c:2713) [ 40.080333][ T2715] ? copy_msghdr_from_user (net/socket.c:2650) [ 40.080335][ T2715] ? sock_write_iter (net/socket.c:1269) [ 40.080337][ T2715] ? move_addr_to_kernel (net/socket.c:258) [ 40.080344][ T2715] ___sys_sendmsg (net/socket.c:2767) [ 40.080347][ T2715] ? copy_msghdr_from_user (net/socket.c:2619) [ 40.080363][ T2715] __sys_sendmsg (net/socket.c:2799) [ 40.080366][ T2715] ? __sys_sendmsg_sock (net/socket.c:2780) [ 40.080373][ T2715] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.080376][ T2715] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 40.080378][ T2715] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 40.080381][ T2715] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 40.080384][ T2715] RIP: 0033:0x7fc573f4c54e [ 40.080387][ T2715] 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 [ 40.080389][ T2715] RSP: 002b:00007fff2aa70e00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 40.080391][ T2715] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc573f4c54e [ 40.080393][ T2715] RDX: 0000000000000000 RSI: 00007fff2aa70eb0 RDI: 0000000000000005 [ 40.080394][ T2715] RBP: 00007fff2aa70e10 R08: 0000000000000000 R09: 0000000000000000 [ 40.080394][ T2715] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b095 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