====================================== | [ 9.633401][ T227] softirqs last disabled at (13456): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 9.633404][ T227] Preemption disabled at: | [ 9.633404][ T227] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.633413][ T227] Tainted: [W]=WARN [ 9.633414][ T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.633415][ T227] Call Trace: [ 9.633417][ T227] [ 9.633418][ T227] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.633424][ T227] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.633426][ T227] __might_resched.cold (kernel/sched/core.c:9234) [ 9.633430][ T227] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.633434][ T227] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.633439][ T227] __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)) [ 9.633441][ T227] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.633447][ T227] ? 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) [ 9.633450][ T227] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.633453][ T227] put_chars (drivers/char/virtio_console.c:1176) [ 9.633456][ T227] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.633458][ T227] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.633463][ T227] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.633471][ T227] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.633474][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633476][ T227] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.633480][ T227] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.633484][ T227] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.633486][ T227] ? 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)) [ 9.633489][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633491][ T227] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.633495][ T227] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.633499][ T227] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.633501][ T227] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.633506][ T227] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.633509][ T227] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.633511][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633512][ T227] ? 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) [ 9.633516][ T227] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.633518][ T227] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.633520][ T227] vprintk_emit (kernel/printk/printk.c:2479) [ 9.633523][ T227] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.633525][ T227] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.633527][ T227] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 9.633531][ T227] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.633534][ T227] _printk (kernel/printk/printk.c:2504) [ 9.633538][ T227] ? snapshot_read.cold (user.c:?) [ 9.633541][ T227] ? br_multicast_flood (??:?) [ 9.633545][ T227] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 9.633546][ T227] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 9.633547][ T227] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.633552][ T227] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 9.633556][ T227] br_init_port (net/bridge/br_stp_if.c:39) [ 9.633558][ T227] new_nbp (net/bridge/br_if.c:449) [ 9.633562][ T227] br_add_if (net/bridge/br_if.c:592) [ 9.633564][ T227] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.633568][ T227] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.633573][ T227] do_set_master (net/core/rtnetlink.c:3071) [ 9.633577][ T227] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 9.633580][ T227] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 9.633584][ T227] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.633585][ T227] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 9.633588][ T227] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 9.633592][ T227] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.633594][ T227] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.633595][ T227] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.633598][ T227] ? kasan_save_stack (mm/kasan/common.c:58) [ 9.633600][ T227] ? kasan_save_stack (mm/kasan/common.c:57) [ 9.633601][ T227] ? kasan_save_track (mm/kasan/common.c:78) [ 9.633603][ T227] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 9.633605][ T227] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.633607][ T227] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 9.633609][ T227] ? ___sys_sendmsg (net/socket.c:2758) [ 9.633613][ T227] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.633615][ T227] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.633618][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633619][ T227] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.633621][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633622][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633624][ T227] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.633626][ T227] ? __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) [ 9.633627][ T227] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.633629][ T227] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.633632][ T227] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.633634][ T227] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.633638][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633640][ T227] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 9.633646][ T227] rtnl_newlink (net/core/rtnetlink.c:4215) [ 9.633651][ T227] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.633653][ T227] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.633657][ T227] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.633659][ T227] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.633662][ T227] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.633663][ T227] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.633667][ T227] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.633669][ T227] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.633672][ T227] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.633673][ T227] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.633678][ T227] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.633680][ T227] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.633684][ T227] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.633687][ T227] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.633694][ T227] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.633701][ T227] ? 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)) [ 9.633703][ T227] ? 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)) [ 9.633707][ T227] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.633711][ T227] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.633714][ T227] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.633718][ T227] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.633722][ T227] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.633726][ T227] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.633727][ T227] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 9.633733][ T227] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.633736][ T227] ____sys_sendmsg (net/socket.c:2713) [ 9.633738][ T227] ? copy_msghdr_from_user (net/socket.c:2650) [ 9.633740][ T227] ? sock_write_iter (net/socket.c:1269) [ 9.633742][ T227] ? move_addr_to_kernel (net/socket.c:258) [ 9.633749][ T227] ___sys_sendmsg (net/socket.c:2767) [ 9.633752][ T227] ? copy_msghdr_from_user (net/socket.c:2619) [ 9.633767][ T227] __sys_sendmsg (net/socket.c:2799) [ 9.633770][ T227] ? __sys_sendmsg_sock (net/socket.c:2780) [ 9.633776][ T227] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.633779][ T227] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.633782][ T227] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.633785][ T227] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.633787][ T227] RIP: 0033:0x7f86c95a754e [ 9.633790][ T227] 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 [ 9.633792][ T227] RSP: 002b:00007ffec484cca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.633795][ T227] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f86c95a754e [ 9.633796][ T227] RDX: 0000000000000000 RSI: 00007ffec484cd50 RDI: 0000000000000005 [ 9.633797][ T227] RBP: 00007ffec484ccb0 R08: 0000000000000000 R09: 0000000000000000 [ 9.633798][ T227] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a1e [ 9.633799][ T227] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffec484d410 | [ 11.262209][ T379] softirqs last disabled at (15230): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 11.262212][ T379] Preemption disabled at: | [ 11.262212][ T379] 0x0 | [ 11.262224][ T379] Tainted: [W]=WARN [ 11.262225][ T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.262227][ T379] Call Trace: [ 11.262228][ T379] [ 11.262230][ T379] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.262237][ T379] __might_resched.cold (kernel/sched/core.c:9234) [ 11.262241][ T379] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.262245][ T379] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.262249][ T379] __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)) [ 11.262251][ T379] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.262258][ T379] ? 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) [ 11.262260][ T379] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.262264][ T379] put_chars (drivers/char/virtio_console.c:1176) [ 11.262267][ T379] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.262273][ T379] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.262281][ T379] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.262284][ T379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.262288][ T379] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.262292][ T379] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.262294][ T379] ? 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)) [ 11.262297][ T379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.262300][ T379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.262304][ T379] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.262308][ T379] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.262310][ T379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.262315][ T379] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.262318][ T379] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.262320][ T379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.262322][ T379] ? 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) [ 11.262326][ T379] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.262327][ T379] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.262330][ T379] vprintk_emit (kernel/printk/printk.c:2479) [ 11.262333][ T379] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.262334][ T379] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.262337][ T379] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.262339][ T379] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.262343][ T379] _printk (kernel/printk/printk.c:2504) [ 11.262347][ T379] ? snapshot_read.cold (user.c:?) [ 11.262354][ T379] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 11.262359][ T379] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 11.262362][ T379] br_device_event (net/bridge/br.c:111) [ 11.262364][ T379] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.262368][ T379] ? packet_sendmsg_spkt (af_packet.c:?) [ 11.262374][ T379] notifier_call_chain (kernel/notifier.c:85) [ 11.262380][ T379] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 11.262385][ T379] ? netif_change_name (net/core/dev.c:1517) [ 11.262388][ T379] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 11.262392][ T379] ? __kernel_text_address (kernel/extable.c:79) [ 11.262394][ T379] ? write_profile (profile.c:?) [ 11.262399][ T379] netif_change_flags (net/core/dev.c:9882) [ 11.262403][ T379] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 11.262406][ T379] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.262408][ T379] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.262409][ T379] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.262411][ T379] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.262414][ T379] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.262416][ T379] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.262418][ T379] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.262421][ T379] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.262423][ T379] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.262424][ T379] ? kasan_save_track (mm/kasan/common.c:78) [ 11.262425][ T379] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.262428][ T379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.262430][ T379] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.262432][ T379] ? ___sys_sendmsg (net/socket.c:2758) [ 11.262436][ T379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.262438][ T379] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.262441][ T379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.262442][ T379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.262444][ T379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.262445][ T379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.262447][ T379] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.262449][ T379] ? __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) [ 11.262450][ T379] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.262452][ T379] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.262456][ T379] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.262459][ T379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.262461][ T379] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.262466][ T379] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.262472][ T379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.262474][ T379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.262478][ T379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.262480][ T379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.262482][ T379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.262484][ T379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.262488][ T379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.262490][ T379] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.262493][ T379] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.262494][ T379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.262499][ T379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.262501][ T379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.262504][ T379] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.262507][ T379] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.262510][ T379] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.262516][ T379] ? 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)) [ 11.262519][ T379] ? 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)) [ 11.262523][ T379] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.262527][ T379] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.262529][ T379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.262534][ T379] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.262538][ T379] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.262541][ T379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.262543][ T379] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.262548][ T379] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.262551][ T379] ____sys_sendmsg (net/socket.c:2713) [ 11.262553][ T379] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.262555][ T379] ? sock_write_iter (net/socket.c:1269) [ 11.262557][ T379] ? move_addr_to_kernel (net/socket.c:258) [ 11.262564][ T379] ___sys_sendmsg (net/socket.c:2767) [ 11.262567][ T379] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.262583][ T379] __sys_sendmsg (net/socket.c:2799) [ 11.262585][ T379] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.262592][ T379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.262595][ T379] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.262598][ T379] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.262600][ T379] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.262603][ T379] RIP: 0033:0x7fce461cb54e [ 11.262605][ T379] 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 [ 11.262607][ T379] RSP: 002b:00007fff59629880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.262609][ T379] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fce461cb54e [ 11.262611][ T379] RDX: 0000000000000000 RSI: 00007fff59629930 RDI: 0000000000000005 [ 11.262612][ T379] RBP: 00007fff59629890 R08: 0000000000000000 R09: 0000000000000000 [ 11.262612][ T379] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a20 [ 11.262613][ T379] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff59629ff0 | [ 12.508418][ T203] softirqs last disabled at (32100): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 12.508421][ T203] Preemption disabled at: | [ 12.508421][ T203] 0x0 | [ 12.508432][ T203] Tainted: [W]=WARN [ 12.508433][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.508434][ T203] Workqueue: events_unbound linkwatch_event [ 12.508438][ T203] Call Trace: [ 12.508439][ T203] [ 12.508441][ T203] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.508447][ T203] __might_resched.cold (kernel/sched/core.c:9234) [ 12.508452][ T203] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.508456][ T203] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.508460][ T203] __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)) [ 12.508462][ T203] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.508469][ T203] ? 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) [ 12.508471][ T203] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.508475][ T203] put_chars (drivers/char/virtio_console.c:1176) [ 12.508477][ T203] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.508480][ T203] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.508483][ T203] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.508486][ T203] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.508490][ T203] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.508493][ T203] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.508495][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.508497][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.508501][ T203] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.508503][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.508507][ T203] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.508512][ T203] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.508516][ T203] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.508517][ T203] ? 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)) [ 12.508521][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.508523][ T203] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.508527][ T203] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.508531][ T203] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.508533][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.508538][ T203] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.508541][ T203] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.508543][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.508545][ T203] ? 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) [ 12.508548][ T203] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.508550][ T203] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.508553][ T203] vprintk_emit (kernel/printk/printk.c:2479) [ 12.508556][ T203] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.508558][ T203] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.508560][ T203] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.508564][ T203] _printk (kernel/printk/printk.c:2504) [ 12.508567][ T203] ? snapshot_read.cold (user.c:?) [ 12.508573][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.508576][ T203] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 12.508581][ T203] br_init_port (net/bridge/br_stp_if.c:39) [ 12.508583][ T203] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 12.508585][ T203] br_port_carrier_check (net/bridge/br_if.c:90) [ 12.508589][ T203] br_device_event (net/bridge/br.c:101) [ 12.508592][ T203] ? packet_sendmsg_spkt (af_packet.c:?) [ 12.508594][ T203] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 12.508601][ T203] notifier_call_chain (kernel/notifier.c:85) [ 12.508606][ T203] netif_state_change (net/core/dev.c:1625) [ 12.508611][ T203] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.508616][ T203] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 12.508618][ T203] __linkwatch_run_queue (net/core/link_watch.c:240) [ 12.508621][ T203] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.508624][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.508628][ T203] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 12.508630][ T203] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 12.508634][ T203] process_one_work (kernel/workqueue.c:3387) [ 12.508640][ T203] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 12.508643][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.508651][ T203] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 12.508655][ T203] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 12.508657][ T203] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 12.508660][ T203] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 12.508663][ T203] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 12.508665][ T203] kthread (kernel/kthread.c:436) [ 12.508667][ T203] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.508670][ T203] ? kthread_affine_preferred (kernel/kthread.c:857) [ 12.508673][ T203] ret_from_fork (arch/x86/kernel/process.c:158) [ 12.508677][ T203] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 12.508680][ T203] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 12.508684][ T203] ? kthread_affine_preferred (kernel/kthread.c:857) [ 12.508687][ T203] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 13.852542][ T640] softirqs last disabled at (26986): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 13.852544][ T640] Preemption disabled at: | [ 13.852545][ T640] 0x0 | [ 13.852555][ T640] Tainted: [W]=WARN [ 13.852556][ T640] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.852558][ T640] Call Trace: [ 13.852559][ T640] [ 13.852561][ T640] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.852567][ T640] __might_resched.cold (kernel/sched/core.c:9234) [ 13.852572][ T640] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.852576][ T640] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.852581][ T640] __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)) [ 13.852583][ T640] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.852589][ T640] ? 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) [ 13.852592][ T640] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.852596][ T640] put_chars (drivers/char/virtio_console.c:1176) [ 13.852598][ T640] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.852604][ T640] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.852612][ T640] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.852615][ T640] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.852620][ T640] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.852624][ T640] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.852626][ T640] ? 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)) [ 13.852629][ T640] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.852632][ T640] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.852636][ T640] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.852640][ T640] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.852642][ T640] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.852649][ T640] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.852652][ T640] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.852653][ T640] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.852655][ T640] ? 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) [ 13.852659][ T640] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.852661][ T640] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.852663][ T640] vprintk_emit (kernel/printk/printk.c:2479) [ 13.852667][ T640] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.852668][ T640] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.852670][ T640] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.852672][ T640] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.852677][ T640] _printk (kernel/printk/printk.c:2504) [ 13.852680][ T640] ? snapshot_read.cold (user.c:?) [ 13.852688][ T640] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 13.852693][ T640] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 13.852696][ T640] br_device_event (net/bridge/br.c:111) [ 13.852698][ T640] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 13.852702][ T640] ? packet_sendmsg_spkt (af_packet.c:?) [ 13.852711][ T640] notifier_call_chain (kernel/notifier.c:85) [ 13.852717][ T640] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 13.852722][ T640] ? netif_change_name (net/core/dev.c:1517) [ 13.852726][ T640] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 13.852729][ T640] ? __kernel_text_address (kernel/extable.c:79) [ 13.852732][ T640] ? write_profile (profile.c:?) [ 13.852737][ T640] netif_change_flags (net/core/dev.c:9882) [ 13.852741][ T640] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 13.852744][ T640] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.852746][ T640] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.852748][ T640] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.852749][ T640] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.852753][ T640] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.852755][ T640] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.852756][ T640] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.852759][ T640] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.852762][ T640] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.852763][ T640] ? kasan_save_track (mm/kasan/common.c:78) [ 13.852764][ T640] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 13.852766][ T640] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.852768][ T640] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 13.852771][ T640] ? ___sys_sendmsg (net/socket.c:2758) [ 13.852775][ T640] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.852777][ T640] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.852779][ T640] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.852781][ T640] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.852783][ T640] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.852784][ T640] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.852786][ T640] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.852788][ T640] ? __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) [ 13.852789][ T640] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.852791][ T640] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.852795][ T640] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.852798][ T640] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.852801][ T640] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.852806][ T640] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.852811][ T640] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.852813][ T640] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.852817][ T640] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.852819][ T640] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.852822][ T640] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.852824][ T640] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.852827][ T640] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.852829][ T640] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.852833][ T640] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.852834][ T640] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.852838][ T640] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.852840][ T640] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.852844][ T640] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.852847][ T640] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.852850][ T640] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.852856][ T640] ? 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)) [ 13.852858][ T640] ? 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)) [ 13.852863][ T640] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.852867][ T640] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.852869][ T640] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.852873][ T640] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.852877][ T640] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.852881][ T640] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.852883][ T640] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 13.852888][ T640] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 13.852891][ T640] ____sys_sendmsg (net/socket.c:2713) [ 13.852893][ T640] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.852896][ T640] ? sock_write_iter (net/socket.c:1269) [ 13.852897][ T640] ? move_addr_to_kernel (net/socket.c:258) [ 13.852904][ T640] ___sys_sendmsg (net/socket.c:2767) [ 13.852907][ T640] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.852923][ T640] __sys_sendmsg (net/socket.c:2799) [ 13.852926][ T640] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.852932][ T640] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.852935][ T640] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.852938][ T640] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.852941][ T640] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.852944][ T640] RIP: 0033:0x7fc11856854e [ 13.852946][ T640] 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 [ 13.852947][ T640] RSP: 002b:00007ffdc69cb910 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.852950][ T640] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc11856854e [ 13.852951][ T640] RDX: 0000000000000000 RSI: 00007ffdc69cb9c0 RDI: 0000000000000005 [ 13.852952][ T640] RBP: 00007ffdc69cb920 R08: 0000000000000000 R09: 0000000000000000 [ 13.852953][ T640] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a23 [ 13.852954][ T640] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdc69cc080 | [ 15.113200][ T778] softirqs last disabled at (23022): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 15.113202][ T778] Preemption disabled at: | [ 15.113203][ T778] 0x0 | [ 15.113214][ T778] Tainted: [W]=WARN [ 15.113215][ T778] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.113217][ T778] Call Trace: [ 15.113218][ T778] [ 15.113219][ T778] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.113226][ T778] __might_resched.cold (kernel/sched/core.c:9234) [ 15.113230][ T778] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.113235][ T778] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.113239][ T778] __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)) [ 15.113241][ T778] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.113247][ T778] ? 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) [ 15.113250][ T778] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.113254][ T778] put_chars (drivers/char/virtio_console.c:1176) [ 15.113256][ T778] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.113257][ T778] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.113261][ T778] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.113266][ T778] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.113274][ T778] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.113277][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113279][ T778] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.113283][ T778] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.113287][ T778] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.113289][ T778] ? 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)) [ 15.113292][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113294][ T778] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.113297][ T778] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.113302][ T778] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.113303][ T778] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.113309][ T778] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.113312][ T778] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.113313][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113315][ T778] ? 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) [ 15.113319][ T778] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.113320][ T778] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.113323][ T778] vprintk_emit (kernel/printk/printk.c:2479) [ 15.113326][ T778] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.113329][ T778] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.113330][ T778] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.113335][ T778] _printk (kernel/printk/printk.c:2504) [ 15.113339][ T778] ? snapshot_read.cold (user.c:?) [ 15.113344][ T778] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.113347][ T778] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 15.113352][ T778] br_init_port (net/bridge/br_stp_if.c:39) [ 15.113354][ T778] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 15.113356][ T778] br_device_event (net/bridge/br.c:120) [ 15.113359][ T778] ? packet_sendmsg_spkt (af_packet.c:?) [ 15.113361][ T778] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 15.113368][ T778] notifier_call_chain (kernel/notifier.c:85) [ 15.113373][ T778] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 15.113378][ T778] ? netif_change_name (net/core/dev.c:1517) [ 15.113382][ T778] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 15.113385][ T778] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 15.113387][ T778] ? __kernel_text_address (kernel/extable.c:79) [ 15.113389][ T778] ? write_profile (profile.c:?) [ 15.113394][ T778] netif_change_flags (net/core/dev.c:9882) [ 15.113398][ T778] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 15.113401][ T778] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 15.113403][ T778] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 15.113404][ T778] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 15.113406][ T778] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.113410][ T778] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.113412][ T778] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.113413][ T778] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.113416][ T778] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.113418][ T778] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.113419][ T778] ? kasan_save_track (mm/kasan/common.c:78) [ 15.113421][ T778] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 15.113423][ T778] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.113425][ T778] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 15.113428][ T778] ? ___sys_sendmsg (net/socket.c:2758) [ 15.113431][ T778] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.113433][ T778] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.113436][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113438][ T778] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.113439][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113440][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113442][ T778] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 15.113444][ T778] ? __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) [ 15.113447][ T778] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 15.113449][ T778] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.113452][ T778] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 15.113456][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113458][ T778] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 15.113463][ T778] rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.113468][ T778] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.113470][ T778] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.113475][ T778] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.113477][ T778] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.113479][ T778] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.113480][ T778] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.113484][ T778] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.113486][ T778] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.113489][ T778] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.113491][ T778] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.113495][ T778] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.113497][ T778] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.113500][ T778] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 15.113502][ T778] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.113505][ T778] ? netlink_ack (./include/linux/skbuff.h:2718) [ 15.113511][ T778] ? 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)) [ 15.113513][ T778] ? 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)) [ 15.113518][ T778] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 15.113522][ T778] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.113524][ T778] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.113528][ T778] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 15.113532][ T778] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.113536][ T778] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.113538][ T778] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 15.113543][ T778] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 15.113546][ T778] ____sys_sendmsg (net/socket.c:2713) [ 15.113548][ T778] ? copy_msghdr_from_user (net/socket.c:2650) [ 15.113550][ T778] ? sock_write_iter (net/socket.c:1269) [ 15.113552][ T778] ? move_addr_to_kernel (net/socket.c:258) [ 15.113559][ T778] ___sys_sendmsg (net/socket.c:2767) [ 15.113562][ T778] ? copy_msghdr_from_user (net/socket.c:2619) [ 15.113578][ T778] __sys_sendmsg (net/socket.c:2799) [ 15.113581][ T778] ? __sys_sendmsg_sock (net/socket.c:2780) [ 15.113587][ T778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.113590][ T778] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.113593][ T778] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.113596][ T778] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.113598][ T778] RIP: 0033:0x7f3fbd84554e [ 15.113600][ T778] 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 [ 15.113602][ T778] RSP: 002b:00007ffd4342e570 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 15.113605][ T778] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3fbd84554e [ 15.113606][ T778] RDX: 0000000000000000 RSI: 00007ffd4342e620 RDI: 0000000000000005 [ 15.113607][ T778] RBP: 00007ffd4342e580 R08: 0000000000000000 R09: 0000000000000000 [ 15.113607][ T778] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a24 [ 15.113608][ T778] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4342ece0 | [ 16.766189][ T418] softirqs last disabled at (97578): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 16.766192][ T418] Preemption disabled at: | [ 16.766193][ T418] 0x0 | [ 16.766203][ T418] Tainted: [W]=WARN [ 16.766204][ T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.766205][ T418] Workqueue: events_unbound linkwatch_event [ 16.766209][ T418] Call Trace: [ 16.766210][ T418] [ 16.766212][ T418] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.766219][ T418] __might_resched.cold (kernel/sched/core.c:9234) [ 16.766224][ T418] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.766228][ T418] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.766232][ T418] __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)) [ 16.766234][ T418] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.766241][ T418] ? 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) [ 16.766244][ T418] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.766247][ T418] put_chars (drivers/char/virtio_console.c:1176) [ 16.766250][ T418] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.766253][ T418] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.766256][ T418] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.766259][ T418] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.766263][ T418] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.766267][ T418] ? mark_usage (kernel/locking/lockdep.c:4690) [ 16.766269][ T418] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.766270][ T418] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.766275][ T418] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.766277][ T418] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.766281][ T418] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.766285][ T418] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.766289][ T418] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.766291][ T418] ? 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)) [ 16.766295][ T418] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.766297][ T418] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.766301][ T418] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.766305][ T418] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.766307][ T418] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.766313][ T418] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.766316][ T418] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.766318][ T418] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.766319][ T418] ? 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) [ 16.766323][ T418] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.766325][ T418] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.766328][ T418] vprintk_emit (kernel/printk/printk.c:2479) [ 16.766331][ T418] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.766334][ T418] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.766336][ T418] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.766339][ T418] _printk (kernel/printk/printk.c:2504) [ 16.766343][ T418] ? snapshot_read.cold (user.c:?) [ 16.766348][ T418] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.766353][ T418] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 16.766357][ T418] br_init_port (net/bridge/br_stp_if.c:39) [ 16.766360][ T418] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 16.766361][ T418] br_port_carrier_check (net/bridge/br_if.c:90) [ 16.766365][ T418] br_device_event (net/bridge/br.c:101) [ 16.766369][ T418] ? packet_sendmsg_spkt (af_packet.c:?) [ 16.766370][ T418] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 16.766378][ T418] notifier_call_chain (kernel/notifier.c:85) [ 16.766383][ T418] netif_state_change (net/core/dev.c:1625) [ 16.766388][ T418] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 16.766393][ T418] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 16.766395][ T418] __linkwatch_run_queue (net/core/link_watch.c:240) [ 16.766399][ T418] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 16.766401][ T418] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.766406][ T418] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 16.766408][ T418] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 16.766411][ T418] process_one_work (kernel/workqueue.c:3387) [ 16.766418][ T418] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 16.766421][ T418] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.766429][ T418] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 16.766433][ T418] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 16.766435][ T418] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 16.766438][ T418] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 16.766441][ T418] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 16.766443][ T418] kthread (kernel/kthread.c:436) [ 16.766445][ T418] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.766449][ T418] ? kthread_affine_preferred (kernel/kthread.c:857) [ 16.766452][ T418] ret_from_fork (arch/x86/kernel/process.c:158) [ 16.766456][ T418] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 16.766459][ T418] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 16.766463][ T418] ? kthread_affine_preferred (kernel/kthread.c:857) [ 16.766466][ T418] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 17.914664][ T1053] softirqs last disabled at (14354): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 17.914666][ T1053] Preemption disabled at: | [ 17.914667][ T1053] 0x0 | [ 17.914677][ T1053] Tainted: [W]=WARN [ 17.914678][ T1053] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.914679][ T1053] Call Trace: [ 17.914680][ T1053] [ 17.914682][ T1053] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.914688][ T1053] __might_resched.cold (kernel/sched/core.c:9234) [ 17.914693][ T1053] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.914697][ T1053] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.914702][ T1053] __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)) [ 17.914703][ T1053] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.914710][ T1053] ? 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) [ 17.914713][ T1053] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.914716][ T1053] put_chars (drivers/char/virtio_console.c:1176) [ 17.914719][ T1053] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.914720][ T1053] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.914723][ T1053] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.914733][ T1053] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.914741][ T1053] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.914744][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.914746][ T1053] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.914750][ T1053] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.914754][ T1053] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.914755][ T1053] ? 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)) [ 17.914759][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.914760][ T1053] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.914764][ T1053] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.914768][ T1053] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.914770][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.914776][ T1053] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.914778][ T1053] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.914780][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.914782][ T1053] ? 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) [ 17.914786][ T1053] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.914787][ T1053] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.914790][ T1053] vprintk_emit (kernel/printk/printk.c:2479) [ 17.914793][ T1053] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.914796][ T1053] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.914797][ T1053] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.914802][ T1053] _printk (kernel/printk/printk.c:2504) [ 17.914806][ T1053] ? snapshot_read.cold (user.c:?) [ 17.914811][ T1053] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.914814][ T1053] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 17.914819][ T1053] br_init_port (net/bridge/br_stp_if.c:39) [ 17.914822][ T1053] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 17.914823][ T1053] br_device_event (net/bridge/br.c:120) [ 17.914826][ T1053] ? packet_sendmsg_spkt (af_packet.c:?) [ 17.914828][ T1053] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 17.914835][ T1053] notifier_call_chain (kernel/notifier.c:85) [ 17.914840][ T1053] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 17.914845][ T1053] ? netif_change_name (net/core/dev.c:1517) [ 17.914849][ T1053] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 17.914851][ T1053] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 17.914854][ T1053] ? __kernel_text_address (kernel/extable.c:79) [ 17.914856][ T1053] ? write_profile (profile.c:?) [ 17.914861][ T1053] netif_change_flags (net/core/dev.c:9882) [ 17.914865][ T1053] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 17.914868][ T1053] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 17.914870][ T1053] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 17.914871][ T1053] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 17.914873][ T1053] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 17.914876][ T1053] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.914878][ T1053] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.914880][ T1053] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.914882][ T1053] ? kasan_save_stack (mm/kasan/common.c:58) [ 17.914885][ T1053] ? kasan_save_stack (mm/kasan/common.c:57) [ 17.914886][ T1053] ? kasan_save_track (mm/kasan/common.c:78) [ 17.914887][ T1053] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 17.914889][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.914891][ T1053] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 17.914894][ T1053] ? ___sys_sendmsg (net/socket.c:2758) [ 17.914898][ T1053] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.914900][ T1053] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 17.914902][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.914904][ T1053] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.914906][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.914907][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.914908][ T1053] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 17.914911][ T1053] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 17.914913][ T1053] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 17.914915][ T1053] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 17.914919][ T1053] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 17.914922][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.914924][ T1053] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 17.914930][ T1053] rtnl_newlink (net/core/rtnetlink.c:4215) [ 17.914935][ T1053] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 17.914937][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.914941][ T1053] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.914943][ T1053] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.914946][ T1053] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 17.914947][ T1053] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.914951][ T1053] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 17.914953][ T1053] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 17.914956][ T1053] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 17.914958][ T1053] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.914962][ T1053] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.914964][ T1053] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.914967][ T1053] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 17.914969][ T1053] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 17.914974][ T1053] ? netlink_ack (./include/linux/skbuff.h:2718) [ 17.914981][ T1053] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 17.914983][ T1053] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 17.914987][ T1053] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 17.914991][ T1053] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 17.914994][ T1053] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.914998][ T1053] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 17.915002][ T1053] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 17.915006][ T1053] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.915008][ T1053] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 17.915013][ T1053] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 17.915015][ T1053] ____sys_sendmsg (net/socket.c:2713) [ 17.915018][ T1053] ? copy_msghdr_from_user (net/socket.c:2650) [ 17.915020][ T1053] ? sock_write_iter (net/socket.c:1269) [ 17.915022][ T1053] ? move_addr_to_kernel (net/socket.c:258) [ 17.915029][ T1053] ___sys_sendmsg (net/socket.c:2767) [ 17.915032][ T1053] ? copy_msghdr_from_user (net/socket.c:2619) [ 17.915047][ T1053] __sys_sendmsg (net/socket.c:2799) [ 17.915050][ T1053] ? __sys_sendmsg_sock (net/socket.c:2780) [ 17.915057][ T1053] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.915060][ T1053] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.915063][ T1053] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.915066][ T1053] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.915068][ T1053] RIP: 0033:0x7f201372c54e [ 17.915070][ T1053] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 17.915072][ T1053] RSP: 002b:00007fffd032b1d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 17.915074][ T1053] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f201372c54e [ 17.915076][ T1053] RDX: 0000000000000000 RSI: 00007fffd032b280 RDI: 0000000000000005 [ 17.915076][ T1053] RBP: 00007fffd032b1e0 R08: 0000000000000000 R09: 0000000000000000 [ 17.915077][ T1053] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a27 [ 17.915078][ T1053] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd032b940 | [ 18.983881][ T1171] softirqs last disabled at (19766): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 18.983884][ T1171] Preemption disabled at: | [ 18.983884][ T1171] 0x0 | [ 18.983894][ T1171] Tainted: [W]=WARN [ 18.983895][ T1171] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.983896][ T1171] Call Trace: [ 18.983898][ T1171] [ 18.983899][ T1171] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.983906][ T1171] __might_resched.cold (kernel/sched/core.c:9234) [ 18.983910][ T1171] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.983914][ T1171] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.983919][ T1171] __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)) [ 18.983921][ T1171] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.983928][ T1171] ? 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) [ 18.983930][ T1171] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.983934][ T1171] put_chars (drivers/char/virtio_console.c:1176) [ 18.983936][ T1171] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.983943][ T1171] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.983950][ T1171] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.983954][ T1171] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.983958][ T1171] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.983962][ T1171] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.983964][ T1171] ? 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)) [ 18.983967][ T1171] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.983970][ T1171] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.983974][ T1171] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.983978][ T1171] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.983980][ T1171] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.983985][ T1171] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.983988][ T1171] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.983990][ T1171] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.983992][ T1171] ? 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) [ 18.983995][ T1171] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.983997][ T1171] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.984000][ T1171] vprintk_emit (kernel/printk/printk.c:2479) [ 18.984003][ T1171] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.984004][ T1171] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 18.984007][ T1171] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.984009][ T1171] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.984013][ T1171] _printk (kernel/printk/printk.c:2504) [ 18.984017][ T1171] ? snapshot_read.cold (user.c:?) [ 18.984024][ T1171] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 18.984029][ T1171] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 18.984032][ T1171] br_device_event (net/bridge/br.c:111) [ 18.984034][ T1171] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 18.984038][ T1171] ? packet_sendmsg_spkt (af_packet.c:?) [ 18.984044][ T1171] notifier_call_chain (kernel/notifier.c:85) [ 18.984049][ T1171] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 18.984054][ T1171] ? netif_change_name (net/core/dev.c:1517) [ 18.984058][ T1171] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 18.984061][ T1171] ? __kernel_text_address (kernel/extable.c:79) [ 18.984064][ T1171] ? write_profile (profile.c:?) [ 18.984069][ T1171] netif_change_flags (net/core/dev.c:9882) [ 18.984073][ T1171] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 18.984076][ T1171] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 18.984078][ T1171] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 18.984079][ T1171] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 18.984081][ T1171] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 18.984084][ T1171] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.984086][ T1171] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.984088][ T1171] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.984091][ T1171] ? kasan_save_stack (mm/kasan/common.c:58) [ 18.984093][ T1171] ? kasan_save_stack (mm/kasan/common.c:57) [ 18.984094][ T1171] ? kasan_save_track (mm/kasan/common.c:78) [ 18.984095][ T1171] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 18.984098][ T1171] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.984100][ T1171] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 18.984103][ T1171] ? ___sys_sendmsg (net/socket.c:2758) [ 18.984106][ T1171] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.984108][ T1171] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.984111][ T1171] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.984112][ T1171] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.984114][ T1171] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.984115][ T1171] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.984117][ T1171] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 18.984119][ T1171] ? __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) [ 18.984121][ T1171] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 18.984122][ T1171] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.984126][ T1171] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 18.984129][ T1171] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.984132][ T1171] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 18.984137][ T1171] rtnl_newlink (net/core/rtnetlink.c:4215) [ 18.984142][ T1171] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.984144][ T1171] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.984149][ T1171] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.984151][ T1171] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.984153][ T1171] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.984154][ T1171] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.984158][ T1171] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.984160][ T1171] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 18.984163][ T1171] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.984165][ T1171] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.984169][ T1171] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.984171][ T1171] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.984174][ T1171] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 18.984178][ T1171] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.984180][ T1171] ? netlink_ack (./include/linux/skbuff.h:2718) [ 18.984189][ T1171] ? 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)) [ 18.984191][ T1171] ? 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)) [ 18.984195][ T1171] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 18.984199][ T1171] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 18.984202][ T1171] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.984206][ T1171] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 18.984210][ T1171] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 18.984214][ T1171] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.984216][ T1171] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 18.984221][ T1171] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 18.984224][ T1171] ____sys_sendmsg (net/socket.c:2713) [ 18.984226][ T1171] ? copy_msghdr_from_user (net/socket.c:2650) [ 18.984229][ T1171] ? sock_write_iter (net/socket.c:1269) [ 18.984230][ T1171] ? move_addr_to_kernel (net/socket.c:258) [ 18.984238][ T1171] ___sys_sendmsg (net/socket.c:2767) [ 18.984240][ T1171] ? copy_msghdr_from_user (net/socket.c:2619) [ 18.984256][ T1171] __sys_sendmsg (net/socket.c:2799) [ 18.984259][ T1171] ? __sys_sendmsg_sock (net/socket.c:2780) [ 18.984266][ T1171] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.984269][ T1171] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 18.984272][ T1171] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 18.984274][ T1171] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.984277][ T1171] RIP: 0033:0x7f4a4ce0c54e [ 18.984279][ T1171] 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 [ 18.984281][ T1171] RSP: 002b:00007ffea31dbab0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 18.984283][ T1171] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4a4ce0c54e [ 18.984285][ T1171] RDX: 0000000000000000 RSI: 00007ffea31dbb60 RDI: 0000000000000005 [ 18.984285][ T1171] RBP: 00007ffea31dbac0 R08: 0000000000000000 R09: 0000000000000000 [ 18.984286][ T1171] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a28 [ 18.984287][ T1171] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea31dc220 | [ 20.241617][ T1278] softirqs last disabled at (22050): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 20.241619][ T1278] Preemption disabled at: | [ 20.241620][ T1278] 0x0 | [ 20.241630][ T1278] Tainted: [W]=WARN [ 20.241631][ T1278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.241632][ T1278] Call Trace: [ 20.241634][ T1278] [ 20.241635][ T1278] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.241641][ T1278] __might_resched.cold (kernel/sched/core.c:9234) [ 20.241646][ T1278] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.241650][ T1278] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 20.241654][ T1278] __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)) [ 20.241656][ T1278] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.241662][ T1278] ? 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) [ 20.241665][ T1278] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.241668][ T1278] put_chars (drivers/char/virtio_console.c:1176) [ 20.241671][ T1278] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.241677][ T1278] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.241685][ T1278] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.241688][ T1278] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.241693][ T1278] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.241697][ T1278] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.241699][ T1278] ? 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)) [ 20.241702][ T1278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.241704][ T1278] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.241708][ T1278] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.241713][ T1278] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.241714][ T1278] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.241720][ T1278] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.241722][ T1278] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.241724][ T1278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.241726][ T1278] ? 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) [ 20.241730][ T1278] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.241731][ T1278] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.241734][ T1278] vprintk_emit (kernel/printk/printk.c:2479) [ 20.241741][ T1278] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.241743][ T1278] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 20.241745][ T1278] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.241747][ T1278] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.241751][ T1278] _printk (kernel/printk/printk.c:2504) [ 20.241755][ T1278] ? snapshot_read.cold (user.c:?) [ 20.241762][ T1278] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 20.241767][ T1278] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 20.241770][ T1278] br_device_event (net/bridge/br.c:111) [ 20.241772][ T1278] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 20.241777][ T1278] ? packet_sendmsg_spkt (af_packet.c:?) [ 20.241782][ T1278] notifier_call_chain (kernel/notifier.c:85) [ 20.241788][ T1278] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 20.241793][ T1278] ? netif_change_name (net/core/dev.c:1517) [ 20.241797][ T1278] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 20.241800][ T1278] ? __kernel_text_address (kernel/extable.c:79) [ 20.241803][ T1278] ? write_profile (profile.c:?) [ 20.241807][ T1278] netif_change_flags (net/core/dev.c:9882) [ 20.241811][ T1278] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 20.241815][ T1278] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 20.241817][ T1278] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 20.241818][ T1278] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 20.241820][ T1278] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.241823][ T1278] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.241825][ T1278] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.241827][ T1278] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.241829][ T1278] ? kasan_save_stack (mm/kasan/common.c:58) [ 20.241832][ T1278] ? kasan_save_stack (mm/kasan/common.c:57) [ 20.241833][ T1278] ? kasan_save_track (mm/kasan/common.c:78) [ 20.241834][ T1278] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 20.241836][ T1278] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.241838][ T1278] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 20.241841][ T1278] ? ___sys_sendmsg (net/socket.c:2758) [ 20.241845][ T1278] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.241847][ T1278] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.241849][ T1278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.241851][ T1278] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.241853][ T1278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.241854][ T1278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.241855][ T1278] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 20.241858][ T1278] ? __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) [ 20.241859][ T1278] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 20.241861][ T1278] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.241864][ T1278] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 20.241868][ T1278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.241870][ T1278] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 20.241875][ T1278] rtnl_newlink (net/core/rtnetlink.c:4215) [ 20.241880][ T1278] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.241882][ T1278] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.241887][ T1278] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.241889][ T1278] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.241891][ T1278] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.241893][ T1278] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.241896][ T1278] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.241898][ T1278] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 20.241901][ T1278] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.241903][ T1278] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.241907][ T1278] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.241909][ T1278] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.241915][ T1278] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 20.241918][ T1278] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.241921][ T1278] ? netlink_ack (./include/linux/skbuff.h:2718) [ 20.241927][ T1278] ? 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)) [ 20.241929][ T1278] ? 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)) [ 20.241934][ T1278] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 20.241938][ T1278] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 20.241940][ T1278] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.241944][ T1278] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 20.241948][ T1278] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.241952][ T1278] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.241954][ T1278] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 20.241959][ T1278] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 20.241962][ T1278] ____sys_sendmsg (net/socket.c:2713) [ 20.241964][ T1278] ? copy_msghdr_from_user (net/socket.c:2650) [ 20.241966][ T1278] ? sock_write_iter (net/socket.c:1269) [ 20.241968][ T1278] ? move_addr_to_kernel (net/socket.c:258) [ 20.241975][ T1278] ___sys_sendmsg (net/socket.c:2767) [ 20.241978][ T1278] ? copy_msghdr_from_user (net/socket.c:2619) [ 20.241993][ T1278] __sys_sendmsg (net/socket.c:2799) [ 20.241996][ T1278] ? __sys_sendmsg_sock (net/socket.c:2780) [ 20.242003][ T1278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.242006][ T1278] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.242008][ T1278] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.242011][ T1278] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.242014][ T1278] RIP: 0033:0x7fb60995154e [ 20.242016][ T1278] 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 [ 20.242017][ T1278] RSP: 002b:00007ffe6a5a4540 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 20.242020][ T1278] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb60995154e [ 20.242021][ T1278] RDX: 0000000000000000 RSI: 00007ffe6a5a45f0 RDI: 0000000000000005 [ 20.242022][ T1278] RBP: 00007ffe6a5a4550 R08: 0000000000000000 R09: 0000000000000000 [ 20.242023][ T1278] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a29 [ 20.242024][ T1278] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6a5a4cb0 | [ 21.414323][ T1416] softirqs last disabled at (13024): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 21.414326][ T1416] Preemption disabled at: | [ 21.414326][ T1416] 0x0 | [ 21.414336][ T1416] Tainted: [W]=WARN [ 21.414337][ T1416] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.414339][ T1416] Call Trace: [ 21.414340][ T1416] [ 21.414342][ T1416] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 21.414348][ T1416] __might_resched.cold (kernel/sched/core.c:9234) [ 21.414353][ T1416] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 21.414357][ T1416] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 21.414361][ T1416] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 21.414363][ T1416] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.414369][ T1416] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 21.414372][ T1416] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.414376][ T1416] put_chars (drivers/char/virtio_console.c:1176) [ 21.414378][ T1416] ? __send_to_port (drivers/char/virtio_console.c:654) [ 21.414379][ T1416] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.414383][ T1416] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 21.414388][ T1416] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 21.414396][ T1416] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 21.414398][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414400][ T1416] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.414404][ T1416] console_emit_next_record (kernel/printk/printk.c:3183) [ 21.414408][ T1416] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 21.414410][ T1416] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 21.414413][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414415][ T1416] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.414419][ T1416] console_flush_one_record (kernel/printk/printk.c:3268) [ 21.414423][ T1416] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 21.414425][ T1416] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.414430][ T1416] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 21.414433][ T1416] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 21.414435][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414436][ T1416] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 21.414440][ T1416] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 21.414442][ T1416] ? vprintk_emit (kernel/printk/printk.c:2478) [ 21.414444][ T1416] vprintk_emit (kernel/printk/printk.c:2479) [ 21.414447][ T1416] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 21.414449][ T1416] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.414451][ T1416] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.414456][ T1416] _printk (kernel/printk/printk.c:2504) [ 21.414459][ T1416] ? snapshot_read.cold (user.c:?) [ 21.414464][ T1416] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.414468][ T1416] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 21.414473][ T1416] br_init_port (net/bridge/br_stp_if.c:39) [ 21.414475][ T1416] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 21.414477][ T1416] br_device_event (net/bridge/br.c:120) [ 21.414480][ T1416] ? packet_sendmsg_spkt (af_packet.c:?) [ 21.414482][ T1416] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 21.414488][ T1416] notifier_call_chain (kernel/notifier.c:85) [ 21.414494][ T1416] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 21.414499][ T1416] ? netif_change_name (net/core/dev.c:1517) [ 21.414503][ T1416] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 21.414505][ T1416] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 21.414508][ T1416] ? __kernel_text_address (kernel/extable.c:79) [ 21.414509][ T1416] ? write_profile (profile.c:?) [ 21.414514][ T1416] netif_change_flags (net/core/dev.c:9882) [ 21.414518][ T1416] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 21.414521][ T1416] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 21.414523][ T1416] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 21.414525][ T1416] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 21.414527][ T1416] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 21.414530][ T1416] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.414532][ T1416] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.414533][ T1416] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 21.414536][ T1416] ? kasan_save_stack (mm/kasan/common.c:58) [ 21.414538][ T1416] ? kasan_save_stack (mm/kasan/common.c:57) [ 21.414539][ T1416] ? kasan_save_track (mm/kasan/common.c:78) [ 21.414540][ T1416] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 21.414542][ T1416] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.414544][ T1416] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 21.414547][ T1416] ? ___sys_sendmsg (net/socket.c:2758) [ 21.414551][ T1416] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.414553][ T1416] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.414555][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414557][ T1416] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.414559][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414560][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414561][ T1416] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 21.414564][ T1416] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 21.414566][ T1416] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 21.414568][ T1416] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.414571][ T1416] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 21.414575][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414577][ T1416] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 21.414582][ T1416] rtnl_newlink (net/core/rtnetlink.c:4215) [ 21.414587][ T1416] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.414589][ T1416] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.414594][ T1416] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.414595][ T1416] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.414598][ T1416] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.414599][ T1416] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.414603][ T1416] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.414605][ T1416] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 21.414608][ T1416] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.414609][ T1416] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.414614][ T1416] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.414616][ T1416] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.414619][ T1416] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 21.414621][ T1416] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.414624][ T1416] ? netlink_ack (./include/linux/skbuff.h:2718) [ 21.414630][ T1416] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 21.414632][ T1416] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 21.414637][ T1416] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 21.414640][ T1416] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 21.414643][ T1416] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.414647][ T1416] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 21.414651][ T1416] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 21.414655][ T1416] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.414656][ T1416] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 21.414662][ T1416] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 21.414664][ T1416] ____sys_sendmsg (net/socket.c:2713) [ 21.414667][ T1416] ? copy_msghdr_from_user (net/socket.c:2650) [ 21.414669][ T1416] ? sock_write_iter (net/socket.c:1269) [ 21.414670][ T1416] ? move_addr_to_kernel (net/socket.c:258) [ 21.414678][ T1416] ___sys_sendmsg (net/socket.c:2767) [ 21.414680][ T1416] ? copy_msghdr_from_user (net/socket.c:2619) [ 21.414696][ T1416] __sys_sendmsg (net/socket.c:2799) [ 21.414699][ T1416] ? __sys_sendmsg_sock (net/socket.c:2780) [ 21.414705][ T1416] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.414708][ T1416] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 21.414711][ T1416] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 21.414714][ T1416] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 21.414716][ T1416] RIP: 0033:0x7f8155d1654e [ 21.414718][ T1416] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 21.414719][ T1416] RSP: 002b:00007ffdcf4efa70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 21.414722][ T1416] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8155d1654e [ 21.414723][ T1416] RDX: 0000000000000000 RSI: 00007ffdcf4efb20 RDI: 0000000000000005 [ 21.414724][ T1416] RBP: 00007ffdcf4efa80 R08: 0000000000000000 R09: 0000000000000000 [ 21.414725][ T1416] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a2a [ 21.414726][ T1416] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdcf4f01e0 | [ 22.806295][ T37] softirqs last disabled at (153232): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 22.806298][ T37] Preemption disabled at: | [ 22.806298][ T37] 0x0 | [ 22.806308][ T37] Tainted: [W]=WARN [ 22.806309][ T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.806311][ T37] Workqueue: events_unbound linkwatch_event [ 22.806314][ T37] Call Trace: [ 22.806316][ T37] [ 22.806317][ T37] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.806324][ T37] __might_resched.cold (kernel/sched/core.c:9234) [ 22.806328][ T37] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.806332][ T37] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.806337][ T37] __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)) [ 22.806339][ T37] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.806346][ T37] ? 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) [ 22.806348][ T37] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.806352][ T37] put_chars (drivers/char/virtio_console.c:1176) [ 22.806354][ T37] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.806357][ T37] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.806360][ T37] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.806363][ T37] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.806367][ T37] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.806371][ T37] ? mark_usage (kernel/locking/lockdep.c:4690) [ 22.806373][ T37] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.806375][ T37] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.806379][ T37] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.806381][ T37] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.806385][ T37] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.806389][ T37] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.806393][ T37] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.806395][ T37] ? 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)) [ 22.806399][ T37] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.806400][ T37] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.806404][ T37] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.806409][ T37] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.806411][ T37] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.806416][ T37] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.806419][ T37] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.806421][ T37] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.806423][ T37] ? 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) [ 22.806426][ T37] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.806428][ T37] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.806431][ T37] vprintk_emit (kernel/printk/printk.c:2479) [ 22.806434][ T37] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.806436][ T37] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.806438][ T37] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.806442][ T37] _printk (kernel/printk/printk.c:2504) [ 22.806446][ T37] ? snapshot_read.cold (user.c:?) [ 22.806451][ T37] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.806455][ T37] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 22.806459][ T37] br_init_port (net/bridge/br_stp_if.c:39) [ 22.806462][ T37] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 22.806464][ T37] br_port_carrier_check (net/bridge/br_if.c:90) [ 22.806467][ T37] br_device_event (net/bridge/br.c:101) [ 22.806471][ T37] ? packet_sendmsg_spkt (af_packet.c:?) [ 22.806472][ T37] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 22.806479][ T37] notifier_call_chain (kernel/notifier.c:85) [ 22.806485][ T37] netif_state_change (net/core/dev.c:1625) [ 22.806490][ T37] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 22.806495][ T37] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 22.806497][ T37] __linkwatch_run_queue (net/core/link_watch.c:240) [ 22.806500][ T37] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 22.806502][ T37] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.806507][ T37] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 22.806509][ T37] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 22.806513][ T37] process_one_work (kernel/workqueue.c:3387) [ 22.806519][ T37] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 22.806522][ T37] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.806530][ T37] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 22.806537][ T37] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 22.806539][ T37] kthread (kernel/kthread.c:436) [ 22.806542][ T37] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 22.806545][ T37] ? kthread_affine_preferred (kernel/kthread.c:857) [ 22.806548][ T37] ret_from_fork (arch/x86/kernel/process.c:158) [ 22.806552][ T37] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 22.806555][ T37] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 22.806558][ T37] ? kthread_affine_preferred (kernel/kthread.c:857) [ 22.806561][ T37] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 23.994989][ T1658] softirqs last disabled at (12604): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 23.994991][ T1658] Preemption disabled at: | [ 23.994992][ T1658] 0x0 | [ 23.995002][ T1658] Tainted: [W]=WARN [ 23.995003][ T1658] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.995004][ T1658] Call Trace: [ 23.995006][ T1658] [ 23.995007][ T1658] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.995014][ T1658] __might_resched.cold (kernel/sched/core.c:9234) [ 23.995018][ T1658] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.995022][ T1658] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.995027][ T1658] __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)) [ 23.995029][ T1658] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.995035][ T1658] ? 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) [ 23.995038][ T1658] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.995041][ T1658] put_chars (drivers/char/virtio_console.c:1176) [ 23.995044][ T1658] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.995045][ T1658] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.995048][ T1658] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.995054][ T1658] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.995062][ T1658] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.995064][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995066][ T1658] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.995070][ T1658] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.995074][ T1658] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.995076][ T1658] ? 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)) [ 23.995079][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995081][ T1658] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.995085][ T1658] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.995089][ T1658] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.995091][ T1658] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.995096][ T1658] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.995099][ T1658] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.995101][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995103][ T1658] ? 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) [ 23.995106][ T1658] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.995108][ T1658] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.995111][ T1658] vprintk_emit (kernel/printk/printk.c:2479) [ 23.995114][ T1658] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.995116][ T1658] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.995118][ T1658] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.995123][ T1658] _printk (kernel/printk/printk.c:2504) [ 23.995127][ T1658] ? snapshot_read.cold (user.c:?) [ 23.995132][ T1658] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.995135][ T1658] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 23.995140][ T1658] br_init_port (net/bridge/br_stp_if.c:39) [ 23.995143][ T1658] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 23.995144][ T1658] br_device_event (net/bridge/br.c:120) [ 23.995148][ T1658] ? packet_sendmsg_spkt (af_packet.c:?) [ 23.995149][ T1658] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 23.995156][ T1658] notifier_call_chain (kernel/notifier.c:85) [ 23.995162][ T1658] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 23.995167][ T1658] ? netif_change_name (net/core/dev.c:1517) [ 23.995171][ T1658] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 23.995173][ T1658] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 23.995176][ T1658] ? __kernel_text_address (kernel/extable.c:79) [ 23.995177][ T1658] ? write_profile (profile.c:?) [ 23.995182][ T1658] netif_change_flags (net/core/dev.c:9882) [ 23.995188][ T1658] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 23.995192][ T1658] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 23.995194][ T1658] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 23.995195][ T1658] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 23.995197][ T1658] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 23.995201][ T1658] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.995202][ T1658] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.995204][ T1658] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.995207][ T1658] ? kasan_save_stack (mm/kasan/common.c:58) [ 23.995209][ T1658] ? kasan_save_stack (mm/kasan/common.c:57) [ 23.995210][ T1658] ? kasan_save_track (mm/kasan/common.c:78) [ 23.995212][ T1658] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 23.995214][ T1658] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.995216][ T1658] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 23.995219][ T1658] ? ___sys_sendmsg (net/socket.c:2758) [ 23.995222][ T1658] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.995224][ T1658] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.995227][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995228][ T1658] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.995230][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995231][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995233][ T1658] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 23.995235][ T1658] ? __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) [ 23.995238][ T1658] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 23.995240][ T1658] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.995243][ T1658] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 23.995247][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995249][ T1658] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 23.995254][ T1658] rtnl_newlink (net/core/rtnetlink.c:4215) [ 23.995260][ T1658] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.995262][ T1658] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.995266][ T1658] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.995268][ T1658] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.995270][ T1658] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.995272][ T1658] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.995276][ T1658] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.995278][ T1658] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 23.995281][ T1658] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.995282][ T1658] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.995287][ T1658] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.995289][ T1658] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.995292][ T1658] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 23.995294][ T1658] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.995297][ T1658] ? netlink_ack (./include/linux/skbuff.h:2718) [ 23.995303][ T1658] ? 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)) [ 23.995306][ T1658] ? 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)) [ 23.995310][ T1658] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 23.995314][ T1658] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 23.995317][ T1658] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.995321][ T1658] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 23.995325][ T1658] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 23.995329][ T1658] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.995330][ T1658] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 23.995336][ T1658] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 23.995338][ T1658] ____sys_sendmsg (net/socket.c:2713) [ 23.995341][ T1658] ? copy_msghdr_from_user (net/socket.c:2650) [ 23.995343][ T1658] ? sock_write_iter (net/socket.c:1269) [ 23.995345][ T1658] ? move_addr_to_kernel (net/socket.c:258) [ 23.995352][ T1658] ___sys_sendmsg (net/socket.c:2767) [ 23.995355][ T1658] ? copy_msghdr_from_user (net/socket.c:2619) [ 23.995371][ T1658] __sys_sendmsg (net/socket.c:2799) [ 23.995374][ T1658] ? __sys_sendmsg_sock (net/socket.c:2780) [ 23.995380][ T1658] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.995383][ T1658] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 23.995386][ T1658] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 23.995389][ T1658] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 23.995391][ T1658] RIP: 0033:0x7f94e0ce254e [ 23.995393][ T1658] 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 [ 23.995394][ T1658] RSP: 002b:00007ffd17822be0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 23.995397][ T1658] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f94e0ce254e [ 23.995398][ T1658] RDX: 0000000000000000 RSI: 00007ffd17822c90 RDI: 0000000000000005 [ 23.995399][ T1658] RBP: 00007ffd17822bf0 R08: 0000000000000000 R09: 0000000000000000 [ 23.995400][ T1658] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a2d [ 23.995400][ T1658] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd17823350 | [ 25.067030][ T1768] softirqs last disabled at (21154): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 25.067032][ T1768] Preemption disabled at: | [ 25.067033][ T1768] 0x0 | [ 25.067043][ T1768] Tainted: [W]=WARN [ 25.067044][ T1768] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.067046][ T1768] Call Trace: [ 25.067048][ T1768] [ 25.067049][ T1768] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.067056][ T1768] __might_resched.cold (kernel/sched/core.c:9234) [ 25.067061][ T1768] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.067065][ T1768] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.067070][ T1768] __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)) [ 25.067072][ T1768] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.067078][ T1768] ? 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) [ 25.067081][ T1768] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.067085][ T1768] put_chars (drivers/char/virtio_console.c:1176) [ 25.067088][ T1768] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.067094][ T1768] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.067102][ T1768] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.067106][ T1768] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.067110][ T1768] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.067115][ T1768] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.067117][ T1768] ? 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)) [ 25.067120][ T1768] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.067123][ T1768] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.067127][ T1768] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.067131][ T1768] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.067133][ T1768] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.067139][ T1768] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.067142][ T1768] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.067143][ T1768] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.067145][ T1768] ? 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) [ 25.067149][ T1768] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.067151][ T1768] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.067154][ T1768] vprintk_emit (kernel/printk/printk.c:2479) [ 25.067157][ T1768] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.067158][ T1768] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 25.067161][ T1768] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.067163][ T1768] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.067167][ T1768] _printk (kernel/printk/printk.c:2504) [ 25.067171][ T1768] ? snapshot_read.cold (user.c:?) [ 25.067179][ T1768] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 25.067187][ T1768] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 25.067192][ T1768] br_device_event (net/bridge/br.c:111) [ 25.067194][ T1768] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 25.067199][ T1768] ? packet_sendmsg_spkt (af_packet.c:?) [ 25.067206][ T1768] notifier_call_chain (kernel/notifier.c:85) [ 25.067213][ T1768] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 25.067219][ T1768] ? netif_change_name (net/core/dev.c:1517) [ 25.067222][ T1768] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 25.067226][ T1768] ? __kernel_text_address (kernel/extable.c:79) [ 25.067228][ T1768] ? write_profile (profile.c:?) [ 25.067234][ T1768] netif_change_flags (net/core/dev.c:9882) [ 25.067238][ T1768] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 25.067241][ T1768] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.067244][ T1768] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.067245][ T1768] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.067247][ T1768] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.067251][ T1768] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.067253][ T1768] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.067255][ T1768] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.067258][ T1768] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.067260][ T1768] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.067261][ T1768] ? kasan_save_track (mm/kasan/common.c:78) [ 25.067263][ T1768] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.067265][ T1768] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.067267][ T1768] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.067270][ T1768] ? ___sys_sendmsg (net/socket.c:2758) [ 25.067274][ T1768] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.067276][ T1768] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.067279][ T1768] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.067281][ T1768] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.067283][ T1768] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.067284][ T1768] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.067285][ T1768] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.067288][ T1768] ? __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) [ 25.067290][ T1768] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.067292][ T1768] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.067295][ T1768] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.067299][ T1768] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.067301][ T1768] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.067307][ T1768] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.067313][ T1768] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.067315][ T1768] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.067320][ T1768] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.067322][ T1768] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.067324][ T1768] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.067326][ T1768] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.067330][ T1768] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.067332][ T1768] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.067335][ T1768] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.067336][ T1768] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.067341][ T1768] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.067343][ T1768] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.067347][ T1768] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.067350][ T1768] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.067353][ T1768] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.067360][ T1768] ? 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)) [ 25.067362][ T1768] ? 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)) [ 25.067366][ T1768] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.067371][ T1768] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.067373][ T1768] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.067378][ T1768] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.067382][ T1768] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.067386][ T1768] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.067388][ T1768] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.067393][ T1768] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.067396][ T1768] ____sys_sendmsg (net/socket.c:2713) [ 25.067399][ T1768] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.067401][ T1768] ? sock_write_iter (net/socket.c:1269) [ 25.067403][ T1768] ? move_addr_to_kernel (net/socket.c:258) [ 25.067410][ T1768] ___sys_sendmsg (net/socket.c:2767) [ 25.067413][ T1768] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.067430][ T1768] __sys_sendmsg (net/socket.c:2799) [ 25.067433][ T1768] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.067440][ T1768] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.067443][ T1768] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.067446][ T1768] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.067449][ T1768] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.067451][ T1768] RIP: 0033:0x7fd50202654e [ 25.067453][ T1768] 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 [ 25.067455][ T1768] RSP: 002b:00007ffd03e4ff00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.067458][ T1768] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd50202654e [ 25.067459][ T1768] RDX: 0000000000000000 RSI: 00007ffd03e4ffb0 RDI: 0000000000000005 [ 25.067460][ T1768] RBP: 00007ffd03e4ff10 R08: 0000000000000000 R09: 0000000000000000 [ 25.067461][ T1768] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a2e [ 25.067462][ T1768] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd03e50670 | [ 26.419221][ T1883] softirqs last disabled at (28386): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 26.419223][ T1883] Preemption disabled at: | [ 26.419224][ T1883] 0x0 | [ 26.419234][ T1883] Tainted: [W]=WARN [ 26.419235][ T1883] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.419236][ T1883] Call Trace: [ 26.419238][ T1883] [ 26.419239][ T1883] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.419246][ T1883] __might_resched.cold (kernel/sched/core.c:9234) [ 26.419251][ T1883] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.419255][ T1883] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.419259][ T1883] __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)) [ 26.419261][ T1883] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.419268][ T1883] ? 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) [ 26.419270][ T1883] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.419274][ T1883] put_chars (drivers/char/virtio_console.c:1176) [ 26.419277][ T1883] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.419283][ T1883] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.419290][ T1883] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.419294][ T1883] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.419298][ T1883] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.419302][ T1883] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.419304][ T1883] ? 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)) [ 26.419307][ T1883] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.419310][ T1883] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.419314][ T1883] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.419318][ T1883] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.419320][ T1883] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.419325][ T1883] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.419328][ T1883] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.419330][ T1883] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.419331][ T1883] ? 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) [ 26.419335][ T1883] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.419337][ T1883] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.419339][ T1883] vprintk_emit (kernel/printk/printk.c:2479) [ 26.419342][ T1883] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.419344][ T1883] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 26.419346][ T1883] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.419348][ T1883] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.419352][ T1883] _printk (kernel/printk/printk.c:2504) [ 26.419356][ T1883] ? snapshot_read.cold (user.c:?) [ 26.419363][ T1883] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 26.419368][ T1883] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 26.419371][ T1883] br_device_event (net/bridge/br.c:111) [ 26.419374][ T1883] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 26.419377][ T1883] ? packet_sendmsg_spkt (af_packet.c:?) [ 26.419383][ T1883] notifier_call_chain (kernel/notifier.c:85) [ 26.419388][ T1883] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 26.419393][ T1883] ? netif_change_name (net/core/dev.c:1517) [ 26.419397][ T1883] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 26.419400][ T1883] ? __kernel_text_address (kernel/extable.c:79) [ 26.419403][ T1883] ? write_profile (profile.c:?) [ 26.419407][ T1883] netif_change_flags (net/core/dev.c:9882) [ 26.419411][ T1883] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 26.419415][ T1883] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.419417][ T1883] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.419418][ T1883] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.419420][ T1883] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.419423][ T1883] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.419425][ T1883] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.419427][ T1883] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.419429][ T1883] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.419432][ T1883] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.419433][ T1883] ? kasan_save_track (mm/kasan/common.c:78) [ 26.419434][ T1883] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 26.419436][ T1883] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.419438][ T1883] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 26.419441][ T1883] ? ___sys_sendmsg (net/socket.c:2758) [ 26.419444][ T1883] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.419446][ T1883] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.419449][ T1883] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.419451][ T1883] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.419452][ T1883] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.419453][ T1883] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.419455][ T1883] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.419457][ T1883] ? __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) [ 26.419458][ T1883] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.419460][ T1883] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.419463][ T1883] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.419467][ T1883] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.419469][ T1883] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.419474][ T1883] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.419480][ T1883] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.419482][ T1883] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.419486][ T1883] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.419488][ T1883] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.419490][ T1883] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.419492][ T1883] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.419496][ T1883] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.419498][ T1883] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.419501][ T1883] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.419502][ T1883] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.419507][ T1883] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.419508][ T1883] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.419512][ T1883] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.419515][ T1883] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.419518][ T1883] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.419524][ T1883] ? 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)) [ 26.419526][ T1883] ? 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)) [ 26.419531][ T1883] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.419534][ T1883] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.419537][ T1883] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.419541][ T1883] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.419545][ T1883] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.419549][ T1883] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.419551][ T1883] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.419556][ T1883] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.419559][ T1883] ____sys_sendmsg (net/socket.c:2713) [ 26.419561][ T1883] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.419563][ T1883] ? sock_write_iter (net/socket.c:1269) [ 26.419565][ T1883] ? move_addr_to_kernel (net/socket.c:258) [ 26.419572][ T1883] ___sys_sendmsg (net/socket.c:2767) [ 26.419575][ T1883] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.419590][ T1883] __sys_sendmsg (net/socket.c:2799) [ 26.419593][ T1883] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.419599][ T1883] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.419602][ T1883] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.419605][ T1883] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.419608][ T1883] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.419610][ T1883] RIP: 0033:0x7f758e57454e [ 26.419612][ T1883] 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 [ 26.419614][ T1883] RSP: 002b:00007ffd77ce5d40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.419617][ T1883] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f758e57454e [ 26.419618][ T1883] RDX: 0000000000000000 RSI: 00007ffd77ce5df0 RDI: 0000000000000005 [ 26.419619][ T1883] RBP: 00007ffd77ce5d50 R08: 0000000000000000 R09: 0000000000000000 [ 26.419620][ T1883] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a2f [ 26.419621][ T1883] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd77ce64b0 | [ 27.603682][ T39] softirqs last disabled at (108206): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 27.603684][ T39] Preemption disabled at: | [ 27.603685][ T39] 0x0 | [ 27.603695][ T39] Tainted: [W]=WARN [ 27.603696][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.603697][ T39] Workqueue: events_unbound linkwatch_event [ 27.603701][ T39] Call Trace: [ 27.603702][ T39] [ 27.603704][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.603711][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 27.603716][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.603719][ 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) [ 27.603724][ 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)) [ 27.603726][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.603733][ 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) [ 27.603735][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.603739][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 27.603741][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.603744][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.603747][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.603750][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 27.603754][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.603758][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 27.603760][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.603762][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.603766][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.603768][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.603776][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.603780][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.603785][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.603786][ 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)) [ 27.603790][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.603792][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.603796][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.603800][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.603802][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.603807][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.603810][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.603812][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.603813][ 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) [ 27.603817][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.603819][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.603822][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 27.603825][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.603827][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.603829][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.603833][ T39] _printk (kernel/printk/printk.c:2504) [ 27.603836][ T39] ? snapshot_read.cold (user.c:?) [ 27.603842][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.603845][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 27.603850][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 27.603852][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 27.603854][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 27.603858][ T39] br_device_event (net/bridge/br.c:101) [ 27.603861][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 27.603863][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 27.603870][ T39] notifier_call_chain (kernel/notifier.c:85) [ 27.603876][ T39] netif_state_change (net/core/dev.c:1625) [ 27.603881][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 27.603885][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 27.603887][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 27.603890][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 27.603893][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.603897][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 27.603899][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 27.603903][ T39] process_one_work (kernel/workqueue.c:3387) [ 27.603910][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 27.603913][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.603920][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 27.603928][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 27.603930][ T39] kthread (kernel/kthread.c:436) [ 27.603932][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 27.603935][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 27.603938][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 27.603943][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 27.603946][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 27.603950][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 27.603953][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 28.890683][ T38] softirqs last disabled at (85564): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 28.890686][ T38] Preemption disabled at: | [ 28.890686][ T38] 0x0 | [ 28.890697][ T38] Tainted: [W]=WARN [ 28.890698][ T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.890699][ T38] Workqueue: events_unbound linkwatch_event [ 28.890703][ T38] Call Trace: [ 28.890704][ T38] [ 28.890706][ T38] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.890712][ T38] __might_resched.cold (kernel/sched/core.c:9234) [ 28.890717][ T38] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.890721][ T38] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.890726][ T38] __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)) [ 28.890728][ T38] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.890734][ T38] ? 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) [ 28.890737][ T38] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.890741][ T38] put_chars (drivers/char/virtio_console.c:1176) [ 28.890743][ T38] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.890746][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.890749][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.890752][ T38] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.890756][ T38] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.890760][ T38] ? mark_usage (kernel/locking/lockdep.c:4690) [ 28.890762][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.890763][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.890768][ T38] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.890769][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.890774][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.890783][ T38] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.890787][ T38] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.890789][ T38] ? 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)) [ 28.890792][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.890794][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.890798][ T38] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.890803][ T38] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.890805][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.890810][ T38] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.890813][ T38] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.890815][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.890817][ T38] ? 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) [ 28.890820][ T38] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.890822][ T38] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.890825][ T38] vprintk_emit (kernel/printk/printk.c:2479) [ 28.890829][ T38] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.890831][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.890833][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.890837][ T38] _printk (kernel/printk/printk.c:2504) [ 28.890840][ T38] ? snapshot_read.cold (user.c:?) [ 28.890846][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.890850][ T38] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 28.890854][ T38] br_init_port (net/bridge/br_stp_if.c:39) [ 28.890857][ T38] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 28.890859][ T38] br_port_carrier_check (net/bridge/br_if.c:90) [ 28.890862][ T38] br_device_event (net/bridge/br.c:101) [ 28.890866][ T38] ? packet_sendmsg_spkt (af_packet.c:?) [ 28.890868][ T38] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 28.890875][ T38] notifier_call_chain (kernel/notifier.c:85) [ 28.890881][ T38] netif_state_change (net/core/dev.c:1625) [ 28.890886][ T38] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.890891][ T38] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 28.890893][ T38] __linkwatch_run_queue (net/core/link_watch.c:240) [ 28.890896][ T38] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.890898][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.890903][ T38] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 28.890905][ T38] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 28.890909][ T38] process_one_work (kernel/workqueue.c:3387) [ 28.890915][ T38] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 28.890919][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.890926][ T38] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 28.890934][ T38] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 28.890936][ T38] kthread (kernel/kthread.c:436) [ 28.890938][ T38] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 28.890941][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 28.890944][ T38] ret_from_fork (arch/x86/kernel/process.c:158) [ 28.890948][ T38] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 28.890952][ T38] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 28.890955][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 28.890958][ T38] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 30.201144][ T2265] softirqs last disabled at (14096): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 30.201147][ T2265] Preemption disabled at: | [ 30.201147][ T2265] 0x0 | [ 30.201158][ T2265] Tainted: [W]=WARN [ 30.201158][ T2265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.201160][ T2265] Call Trace: [ 30.201162][ T2265] [ 30.201163][ T2265] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.201169][ T2265] __might_resched.cold (kernel/sched/core.c:9234) [ 30.201174][ T2265] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.201178][ T2265] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.201182][ T2265] __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)) [ 30.201186][ T2265] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.201193][ T2265] ? 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) [ 30.201196][ T2265] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.201200][ T2265] put_chars (drivers/char/virtio_console.c:1176) [ 30.201203][ T2265] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.201204][ T2265] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.201207][ T2265] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.201213][ T2265] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.201221][ T2265] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.201223][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201225][ T2265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.201229][ T2265] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.201233][ T2265] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.201235][ T2265] ? 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)) [ 30.201238][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201240][ T2265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.201244][ T2265] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.201248][ T2265] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.201250][ T2265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.201255][ T2265] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.201258][ T2265] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.201260][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201261][ T2265] ? 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) [ 30.201265][ T2265] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.201267][ T2265] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.201269][ T2265] vprintk_emit (kernel/printk/printk.c:2479) [ 30.201273][ T2265] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.201275][ T2265] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.201277][ T2265] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.201281][ T2265] _printk (kernel/printk/printk.c:2504) [ 30.201285][ T2265] ? snapshot_read.cold (user.c:?) [ 30.201290][ T2265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.201294][ T2265] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 30.201298][ T2265] br_init_port (net/bridge/br_stp_if.c:39) [ 30.201301][ T2265] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 30.201302][ T2265] br_device_event (net/bridge/br.c:120) [ 30.201305][ T2265] ? packet_sendmsg_spkt (af_packet.c:?) [ 30.201307][ T2265] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 30.201314][ T2265] notifier_call_chain (kernel/notifier.c:85) [ 30.201319][ T2265] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 30.201324][ T2265] ? netif_change_name (net/core/dev.c:1517) [ 30.201328][ T2265] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 30.201330][ T2265] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 30.201333][ T2265] ? __kernel_text_address (kernel/extable.c:79) [ 30.201335][ T2265] ? write_profile (profile.c:?) [ 30.201340][ T2265] netif_change_flags (net/core/dev.c:9882) [ 30.201344][ T2265] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 30.201347][ T2265] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 30.201349][ T2265] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 30.201350][ T2265] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 30.201352][ T2265] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 30.201356][ T2265] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.201358][ T2265] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.201359][ T2265] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.201362][ T2265] ? kasan_save_stack (mm/kasan/common.c:58) [ 30.201364][ T2265] ? kasan_save_stack (mm/kasan/common.c:57) [ 30.201365][ T2265] ? kasan_save_track (mm/kasan/common.c:78) [ 30.201366][ T2265] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 30.201369][ T2265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.201371][ T2265] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 30.201374][ T2265] ? ___sys_sendmsg (net/socket.c:2758) [ 30.201377][ T2265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.201379][ T2265] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.201382][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201383][ T2265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.201385][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201386][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201388][ T2265] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 30.201390][ T2265] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 30.201393][ T2265] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 30.201395][ T2265] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.201398][ T2265] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 30.201401][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201404][ T2265] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 30.201409][ T2265] rtnl_newlink (net/core/rtnetlink.c:4215) [ 30.201414][ T2265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.201416][ T2265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.201420][ T2265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.201422][ T2265] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.201425][ T2265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.201426][ T2265] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.201430][ T2265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.201432][ T2265] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 30.201435][ T2265] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.201437][ T2265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.201441][ T2265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.201443][ T2265] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.201446][ T2265] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 30.201448][ T2265] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.201451][ T2265] ? netlink_ack (./include/linux/skbuff.h:2718) [ 30.201457][ T2265] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 30.201459][ T2265] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 30.201464][ T2265] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 30.201468][ T2265] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 30.201470][ T2265] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.201475][ T2265] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 30.201478][ T2265] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 30.201482][ T2265] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.201484][ T2265] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 30.201489][ T2265] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 30.201492][ T2265] ____sys_sendmsg (net/socket.c:2713) [ 30.201494][ T2265] ? copy_msghdr_from_user (net/socket.c:2650) [ 30.201496][ T2265] ? sock_write_iter (net/socket.c:1269) [ 30.201498][ T2265] ? move_addr_to_kernel (net/socket.c:258) [ 30.201505][ T2265] ___sys_sendmsg (net/socket.c:2767) [ 30.201508][ T2265] ? copy_msghdr_from_user (net/socket.c:2619) [ 30.201524][ T2265] __sys_sendmsg (net/socket.c:2799) [ 30.201527][ T2265] ? __sys_sendmsg_sock (net/socket.c:2780) [ 30.201533][ T2265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.201536][ T2265] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.201539][ T2265] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.201542][ T2265] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.201544][ T2265] RIP: 0033:0x7f29fd24154e [ 30.201546][ T2265] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 30.201547][ T2265] RSP: 002b:00007fff26dfda60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 30.201550][ T2265] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f29fd24154e [ 30.201551][ T2265] RDX: 0000000000000000 RSI: 00007fff26dfdb10 RDI: 0000000000000005 [ 30.201552][ T2265] RBP: 00007fff26dfda70 R08: 0000000000000000 R09: 0000000000000000 [ 30.201553][ T2265] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a33 [ 30.201554][ T2265] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff26dfe1d0 | [ 31.541369][ T2391] softirqs last disabled at (22494): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 31.541371][ T2391] Preemption disabled at: | [ 31.541371][ T2391] 0x0 | [ 31.541382][ T2391] Tainted: [W]=WARN [ 31.541383][ T2391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.541384][ T2391] Call Trace: [ 31.541386][ T2391] [ 31.541387][ T2391] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.541393][ T2391] __might_resched.cold (kernel/sched/core.c:9234) [ 31.541398][ T2391] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.541402][ T2391] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.541407][ T2391] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 31.541409][ T2391] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.541415][ T2391] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 31.541418][ T2391] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.541421][ T2391] put_chars (drivers/char/virtio_console.c:1176) [ 31.541424][ T2391] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.541425][ T2391] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.541429][ T2391] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.541434][ T2391] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.541442][ T2391] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.541444][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541446][ T2391] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.541450][ T2391] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.541454][ T2391] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.541456][ T2391] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 31.541459][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541461][ T2391] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.541465][ T2391] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.541469][ T2391] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.541471][ T2391] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.541476][ T2391] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.541479][ T2391] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.541481][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541483][ T2391] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 31.541486][ T2391] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.541488][ T2391] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.541491][ T2391] vprintk_emit (kernel/printk/printk.c:2479) [ 31.541494][ T2391] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.541496][ T2391] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.541498][ T2391] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.541503][ T2391] _printk (kernel/printk/printk.c:2504) [ 31.541506][ T2391] ? snapshot_read.cold (user.c:?) [ 31.541511][ T2391] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.541515][ T2391] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 31.541520][ T2391] br_init_port (net/bridge/br_stp_if.c:39) [ 31.541523][ T2391] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 31.541525][ T2391] br_device_event (net/bridge/br.c:120) [ 31.541528][ T2391] ? packet_sendmsg_spkt (af_packet.c:?) [ 31.541529][ T2391] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 31.541536][ T2391] notifier_call_chain (kernel/notifier.c:85) [ 31.541542][ T2391] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 31.541547][ T2391] ? netif_change_name (net/core/dev.c:1517) [ 31.541550][ T2391] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 31.541553][ T2391] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 31.541556][ T2391] ? __kernel_text_address (kernel/extable.c:79) [ 31.541558][ T2391] ? write_profile (profile.c:?) [ 31.541563][ T2391] netif_change_flags (net/core/dev.c:9882) [ 31.541566][ T2391] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 31.541570][ T2391] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 31.541572][ T2391] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 31.541573][ T2391] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 31.541575][ T2391] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 31.541579][ T2391] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.541580][ T2391] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.541582][ T2391] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.541585][ T2391] ? kasan_save_stack (mm/kasan/common.c:58) [ 31.541587][ T2391] ? kasan_save_stack (mm/kasan/common.c:57) [ 31.541588][ T2391] ? kasan_save_track (mm/kasan/common.c:78) [ 31.541589][ T2391] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 31.541592][ T2391] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.541594][ T2391] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 31.541596][ T2391] ? ___sys_sendmsg (net/socket.c:2758) [ 31.541600][ T2391] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.541602][ T2391] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.541605][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541606][ T2391] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.541608][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541609][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541611][ T2391] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 31.541613][ T2391] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 31.541616][ T2391] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 31.541618][ T2391] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.541621][ T2391] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 31.541625][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541627][ T2391] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 31.541632][ T2391] rtnl_newlink (net/core/rtnetlink.c:4215) [ 31.541637][ T2391] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.541639][ T2391] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.541644][ T2391] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.541645][ T2391] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.541648][ T2391] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.541650][ T2391] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.541653][ T2391] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.541655][ T2391] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 31.541658][ T2391] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.541660][ T2391] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.541664][ T2391] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.541666][ T2391] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.541669][ T2391] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 31.541671][ T2391] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.541674][ T2391] ? netlink_ack (./include/linux/skbuff.h:2718) [ 31.541680][ T2391] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 31.541683][ T2391] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 31.541687][ T2391] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 31.541691][ T2391] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 31.541694][ T2391] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.541698][ T2391] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 31.541702][ T2391] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 31.541706][ T2391] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.541707][ T2391] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 31.541713][ T2391] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 31.541716][ T2391] ____sys_sendmsg (net/socket.c:2713) [ 31.541718][ T2391] ? copy_msghdr_from_user (net/socket.c:2650) [ 31.541720][ T2391] ? sock_write_iter (net/socket.c:1269) [ 31.541722][ T2391] ? move_addr_to_kernel (net/socket.c:258) [ 31.541729][ T2391] ___sys_sendmsg (net/socket.c:2767) [ 31.541732][ T2391] ? copy_msghdr_from_user (net/socket.c:2619) [ 31.541748][ T2391] __sys_sendmsg (net/socket.c:2799) [ 31.541751][ T2391] ? __sys_sendmsg_sock (net/socket.c:2780) [ 31.541757][ T2391] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.541760][ T2391] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.541763][ T2391] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.541766][ T2391] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.541768][ T2391] RIP: 0033:0x7f91ef2e554e [ 31.541770][ T2391] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 31.541772][ T2391] RSP: 002b:00007ffe09401a10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 31.541774][ T2391] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f91ef2e554e [ 31.541776][ T2391] RDX: 0000000000000000 RSI: 00007ffe09401ac0 RDI: 0000000000000005 [ 31.541776][ T2391] RBP: 00007ffe09401a20 R08: 0000000000000000 R09: 0000000000000000 [ 31.541777][ T2391] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a34 [ 31.541778][ T2391] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe09402180 | [ 33.109224][ T2528] softirqs last disabled at (17388): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 33.109226][ T2528] Preemption disabled at: | [ 33.109227][ T2528] 0x0 | [ 33.109237][ T2528] Tainted: [W]=WARN [ 33.109238][ T2528] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.109240][ T2528] Call Trace: [ 33.109241][ T2528] [ 33.109242][ T2528] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.109249][ T2528] __might_resched.cold (kernel/sched/core.c:9234) [ 33.109253][ T2528] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.109257][ T2528] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 33.109262][ T2528] __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)) [ 33.109263][ T2528] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.109270][ T2528] ? 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) [ 33.109272][ T2528] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.109276][ T2528] put_chars (drivers/char/virtio_console.c:1176) [ 33.109279][ T2528] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.109285][ T2528] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.109292][ T2528] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.109296][ T2528] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.109300][ T2528] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.109304][ T2528] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.109306][ T2528] ? 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)) [ 33.109309][ T2528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.109312][ T2528] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.109316][ T2528] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.109320][ T2528] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.109322][ T2528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.109327][ T2528] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.109330][ T2528] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.109332][ T2528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.109334][ T2528] ? 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) [ 33.109337][ T2528] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.109339][ T2528] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.109342][ T2528] vprintk_emit (kernel/printk/printk.c:2479) [ 33.109345][ T2528] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.109346][ T2528] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 33.109349][ T2528] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.109351][ T2528] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.109355][ T2528] _printk (kernel/printk/printk.c:2504) [ 33.109359][ T2528] ? snapshot_read.cold (user.c:?) [ 33.109366][ T2528] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 33.109371][ T2528] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 33.109374][ T2528] br_device_event (net/bridge/br.c:111) [ 33.109377][ T2528] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 33.109381][ T2528] ? packet_sendmsg_spkt (af_packet.c:?) [ 33.109386][ T2528] notifier_call_chain (kernel/notifier.c:85) [ 33.109392][ T2528] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 33.109397][ T2528] ? netif_change_name (net/core/dev.c:1517) [ 33.109401][ T2528] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 33.109404][ T2528] ? __kernel_text_address (kernel/extable.c:79) [ 33.109406][ T2528] ? write_profile (profile.c:?) [ 33.109411][ T2528] netif_change_flags (net/core/dev.c:9882) [ 33.109415][ T2528] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 33.109418][ T2528] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 33.109420][ T2528] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 33.109422][ T2528] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 33.109424][ T2528] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 33.109427][ T2528] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.109429][ T2528] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.109431][ T2528] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.109433][ T2528] ? kasan_save_stack (mm/kasan/common.c:58) [ 33.109436][ T2528] ? kasan_save_stack (mm/kasan/common.c:57) [ 33.109437][ T2528] ? kasan_save_track (mm/kasan/common.c:78) [ 33.109438][ T2528] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 33.109440][ T2528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.109442][ T2528] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 33.109445][ T2528] ? ___sys_sendmsg (net/socket.c:2758) [ 33.109449][ T2528] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.109451][ T2528] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 33.109454][ T2528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.109455][ T2528] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.109457][ T2528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.109458][ T2528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.109459][ T2528] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 33.109462][ T2528] ? __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) [ 33.109463][ T2528] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 33.109465][ T2528] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 33.109468][ T2528] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 33.109472][ T2528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.109474][ T2528] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 33.109479][ T2528] rtnl_newlink (net/core/rtnetlink.c:4215) [ 33.109485][ T2528] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 33.109486][ T2528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.109491][ T2528] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.109493][ T2528] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 33.109495][ T2528] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 33.109497][ T2528] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 33.109501][ T2528] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 33.109503][ T2528] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 33.109506][ T2528] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 33.109507][ T2528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.109512][ T2528] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.109514][ T2528] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 33.109517][ T2528] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 33.109520][ T2528] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 33.109523][ T2528] ? netlink_ack (./include/linux/skbuff.h:2718) [ 33.109529][ T2528] ? 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)) [ 33.109531][ T2528] ? 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)) [ 33.109536][ T2528] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 33.109540][ T2528] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 33.109542][ T2528] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 33.109547][ T2528] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 33.109551][ T2528] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 33.109554][ T2528] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 33.109556][ T2528] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 33.109561][ T2528] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 33.109564][ T2528] ____sys_sendmsg (net/socket.c:2713) [ 33.109566][ T2528] ? copy_msghdr_from_user (net/socket.c:2650) [ 33.109568][ T2528] ? sock_write_iter (net/socket.c:1269) [ 33.109570][ T2528] ? move_addr_to_kernel (net/socket.c:258) [ 33.109577][ T2528] ___sys_sendmsg (net/socket.c:2767) [ 33.109580][ T2528] ? copy_msghdr_from_user (net/socket.c:2619) [ 33.109596][ T2528] __sys_sendmsg (net/socket.c:2799) [ 33.109599][ T2528] ? __sys_sendmsg_sock (net/socket.c:2780) [ 33.109605][ T2528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.109608][ T2528] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 33.109611][ T2528] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 33.109614][ T2528] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 33.109616][ T2528] RIP: 0033:0x7fa2c5cc754e [ 33.109618][ T2528] 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 [ 33.109619][ T2528] RSP: 002b:00007ffefd5f1d20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 33.109622][ T2528] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa2c5cc754e [ 33.109623][ T2528] RDX: 0000000000000000 RSI: 00007ffefd5f1dd0 RDI: 0000000000000005 [ 33.109624][ T2528] RBP: 00007ffefd5f1d30 R08: 0000000000000000 R09: 0000000000000000 [ 33.109625][ T2528] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919a36 [ 33.109626][ T2528] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffefd5f2490 | [ 34.312350][ T36] softirqs last disabled at (383228): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 34.312353][ T36] Preemption disabled at: | [ 34.312354][ T36] 0x0 | [ 34.312364][ T36] Tainted: [W]=WARN [ 34.312365][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.312366][ T36] Workqueue: events_unbound linkwatch_event [ 34.312369][ T36] Call Trace: [ 34.312371][ T36] [ 34.312372][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.312379][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 34.312383][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.312387][ 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) [ 34.312392][ 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)) [ 34.312394][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.312400][ 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) [ 34.312403][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.312407][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 34.312409][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.312412][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.312415][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.312418][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.312422][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.312426][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 34.312428][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.312429][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.312433][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.312435][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.312440][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.312444][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.312448][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.312450][ 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)) [ 34.312453][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.312455][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.312459][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.312463][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.312465][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.312470][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.312473][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.312475][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.312477][ 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) [ 34.312480][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.312482][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.312485][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 34.312488][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.312490][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.312492][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.312496][ T36] _printk (kernel/printk/printk.c:2504) [ 34.312500][ T36] ? snapshot_read.cold (user.c:?) [ 34.312505][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.312509][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.312513][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 34.312515][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 34.312517][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 34.312521][ T36] br_device_event (net/bridge/br.c:101) [ 34.312524][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 34.312526][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 34.312533][ T36] notifier_call_chain (kernel/notifier.c:85) [ 34.312538][ T36] netif_state_change (net/core/dev.c:1625) [ 34.312543][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.312548][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 34.312550][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 34.312553][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.312556][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.312560][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 34.312562][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 34.312566][ T36] process_one_work (kernel/workqueue.c:3387) [ 34.312572][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 34.312575][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.312583][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 34.312590][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 34.312592][ T36] kthread (kernel/kthread.c:436) [ 34.312594][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 34.312597][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.312600][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 34.312604][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 34.312608][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 34.312611][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.312614][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 35.847913][ T36] softirqs last disabled at (406722): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 35.847916][ T36] Preemption disabled at: | [ 35.847917][ T36] 0x0 | [ 35.847927][ T36] Tainted: [W]=WARN [ 35.847928][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 35.847930][ T36] Workqueue: events_unbound linkwatch_event [ 35.847933][ T36] Call Trace: [ 35.847934][ T36] [ 35.847936][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 35.847943][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 35.847947][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 35.847951][ 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) [ 35.847955][ 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)) [ 35.847957][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 35.847964][ 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) [ 35.847966][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 35.847970][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 35.847973][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 35.847975][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 35.847978][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 35.847981][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 35.847985][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 35.847989][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 35.847991][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.847993][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.847997][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 35.847999][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.848003][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 35.848007][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 35.848011][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 35.848013][ 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)) [ 35.848016][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.848018][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 35.848022][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 35.848026][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 35.848028][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.848034][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 35.848036][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 35.848038][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.848040][ 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) [ 35.848044][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 35.848045][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 35.848048][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 35.848052][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 35.848054][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 35.848056][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 35.848059][ T36] _printk (kernel/printk/printk.c:2504) [ 35.848063][ T36] ? snapshot_read.cold (user.c:?) [ 35.848068][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.848072][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 35.848076][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 35.848079][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 35.848081][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 35.848084][ T36] br_device_event (net/bridge/br.c:101) [ 35.848088][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 35.848089][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 35.848096][ T36] notifier_call_chain (kernel/notifier.c:85) [ 35.848102][ T36] netif_state_change (net/core/dev.c:1625) [ 35.848107][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 35.848112][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 35.848114][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 35.848117][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 35.848120][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.848124][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 35.848126][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 35.848130][ T36] process_one_work (kernel/workqueue.c:3387) [ 35.848136][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 35.848139][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.848147][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 35.848154][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 35.848156][ T36] kthread (kernel/kthread.c:436) [ 35.848158][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 35.848162][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 35.848164][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 35.848169][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 35.848172][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 35.848176][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) 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