====================================== | [ 9.897670][ T196] softirqs last disabled at (31161): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.897672][ T196] Preemption disabled at: | [ 9.897673][ T196] 0x0 | [ 9.897684][ T196] Tainted: [W]=WARN [ 9.897685][ T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.897686][ T196] Call Trace: [ 9.897688][ T196] [ 9.897689][ T196] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.897696][ T196] __might_resched.cold (kernel/sched/core.c:9234) [ 9.897700][ T196] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.897704][ T196] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.897709][ T196] __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)) [ 9.897711][ T196] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.897718][ T196] ? 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) [ 9.897721][ T196] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.897724][ T196] put_chars (drivers/char/virtio_console.c:1176) [ 9.897727][ T196] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.897728][ T196] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.897732][ T196] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.897737][ T196] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.897745][ T196] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.897748][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897750][ T196] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.897754][ T196] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.897758][ T196] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.897760][ T196] ? 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)) [ 9.897763][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897765][ T196] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.897769][ T196] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.897773][ T196] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.897775][ T196] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.897780][ T196] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.897783][ T196] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.897785][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897787][ T196] ? 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) [ 9.897790][ T196] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.897792][ T196] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.897795][ T196] vprintk_emit (kernel/printk/printk.c:2479) [ 9.897798][ T196] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.897801][ T196] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.897805][ T196] _printk (kernel/printk/printk.c:2504) [ 9.897809][ T196] ? snapshot_read.cold (user.c:?) [ 9.897812][ T196] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.897814][ T196] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.897818][ T196] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.897821][ T196] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.897825][ T196] ? exit_notify (kernel/exit.c:780) [ 9.897826][ T196] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.897829][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.897833][ T196] do_group_exit (kernel/exit.c:1151) [ 9.897835][ T196] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.897837][ T196] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.897840][ T196] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.897844][ T196] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.897847][ T196] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.897849][ T196] RIP: 0033:0x7f344600c1b8 [ 9.897851][ T196] Code: Unable to access opcode bytes at 0x7f344600c18e. Code starting with the faulting instruction =========================================== [ 9.897852][ T196] RSP: 002b:00007ffe99d0f658 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.897855][ T196] RAX: ffffffffffffffda RBX: 00007f344613cf88 RCX: 00007f344600c1b8 [ 9.897856][ T196] RDX: 00007f3445d56fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.897857][ T196] RBP: 00007ffe99d0f6b0 R08: 0000000000000000 R09: 0000000000008010 [ 9.897858][ T196] R10: 00007ffe99d0f470 R11: 0000000000000246 R12: 0000000000000001 [ 9.897859][ T196] R13: 0000000000000000 R14: 00007f344613b680 R15: 00007f344613cfa0 | [ 11.018425][ T292] softirqs last disabled at (31716): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.018427][ T292] Preemption disabled at: | [ 11.018428][ T292] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.018436][ T292] Tainted: [W]=WARN [ 11.018437][ T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.018439][ T292] Call Trace: [ 11.018441][ T292] [ 11.018442][ T292] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.018448][ T292] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.018449][ T292] __might_resched.cold (kernel/sched/core.c:9234) [ 11.018454][ T292] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.018458][ T292] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.018462][ T292] __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)) [ 11.018464][ T292] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.018470][ T292] ? 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) [ 11.018473][ T292] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.018477][ T292] put_chars (drivers/char/virtio_console.c:1176) [ 11.018479][ T292] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.018481][ T292] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.018484][ T292] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.018489][ T292] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.018497][ T292] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.018500][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018502][ T292] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.018506][ T292] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.018510][ T292] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.018511][ T292] ? 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)) [ 11.018515][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018516][ T292] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.018521][ T292] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.018527][ T292] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.018530][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.018536][ T292] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.018539][ T292] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.018541][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018543][ T292] ? 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) [ 11.018546][ T292] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.018548][ T292] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.018551][ T292] vprintk_emit (kernel/printk/printk.c:2479) [ 11.018554][ T292] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.018555][ T292] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.018558][ T292] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.018562][ T292] _printk (kernel/printk/printk.c:2504) [ 11.018565][ T292] ? snapshot_read.cold (user.c:?) [ 11.018569][ T292] ? br_multicast_flood (??:?) [ 11.018572][ T292] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.018573][ T292] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.018575][ T292] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.018579][ T292] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 11.018583][ T292] br_init_port (net/bridge/br_stp_if.c:39) [ 11.018586][ T292] new_nbp (net/bridge/br_if.c:449) [ 11.018590][ T292] br_add_if (net/bridge/br_if.c:592) [ 11.018592][ T292] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 11.018596][ T292] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 11.018601][ T292] do_set_master (net/core/rtnetlink.c:3071) [ 11.018604][ T292] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.018608][ T292] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.018611][ T292] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.018612][ T292] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.018615][ T292] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.018618][ T292] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.018620][ T292] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.018622][ T292] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.018624][ T292] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.018627][ T292] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.018628][ T292] ? kasan_save_track (mm/kasan/common.c:78) [ 11.018629][ T292] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.018631][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.018633][ T292] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.018636][ T292] ? ___sys_sendmsg (net/socket.c:2758) [ 11.018640][ T292] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.018642][ T292] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.018644][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018646][ T292] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.018647][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018648][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018650][ T292] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.018652][ T292] ? __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) [ 11.018655][ T292] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.018657][ T292] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.018660][ T292] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.018661][ T292] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.018666][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018669][ T292] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.018674][ T292] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.018679][ T292] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.018681][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.018685][ T292] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.018687][ T292] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.018689][ T292] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.018691][ T292] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.018695][ T292] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.018697][ T292] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.018700][ T292] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.018701][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.018705][ T292] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.018707][ T292] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.018711][ T292] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.018714][ T292] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.018716][ T292] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.018723][ T292] ? 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)) [ 11.018725][ T292] ? 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)) [ 11.018729][ T292] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.018733][ T292] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.018735][ T292] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.018739][ T292] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.018743][ T292] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.018747][ T292] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.018748][ T292] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.018754][ T292] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.018757][ T292] ____sys_sendmsg (net/socket.c:2713) [ 11.018759][ T292] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.018761][ T292] ? sock_write_iter (net/socket.c:1269) [ 11.018763][ T292] ? move_addr_to_kernel (net/socket.c:258) [ 11.018770][ T292] ___sys_sendmsg (net/socket.c:2767) [ 11.018772][ T292] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.018788][ T292] __sys_sendmsg (net/socket.c:2799) [ 11.018790][ T292] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.018797][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.018799][ T292] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.018802][ T292] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.018805][ T292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.018807][ T292] RIP: 0033:0x7fa2ead7b54e [ 11.018811][ T292] 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 [ 11.018813][ T292] RSP: 002b:00007fff5a1a4da0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.018816][ T292] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa2ead7b54e [ 11.018817][ T292] RDX: 0000000000000000 RSI: 00007fff5a1a4e50 RDI: 0000000000000005 [ 11.018818][ T292] RBP: 00007fff5a1a4db0 R08: 0000000000000000 R09: 0000000000000000 [ 11.018819][ T292] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131c9 [ 11.018820][ T292] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff5a1a5510 | [ 12.380125][ T426] softirqs last disabled at (14744): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 12.380127][ T426] Preemption disabled at: | [ 12.380128][ T426] 0x0 | [ 12.380138][ T426] Tainted: [W]=WARN [ 12.380139][ T426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.380140][ T426] Call Trace: [ 12.380142][ T426] [ 12.380144][ T426] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.380150][ T426] __might_resched.cold (kernel/sched/core.c:9234) [ 12.380155][ T426] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.380159][ T426] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.380164][ T426] __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)) [ 12.380166][ T426] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.380173][ T426] ? 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) [ 12.380176][ T426] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.380179][ T426] put_chars (drivers/char/virtio_console.c:1176) [ 12.380182][ T426] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.380183][ T426] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.380187][ T426] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.380193][ T426] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.380201][ T426] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.380204][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380205][ T426] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.380210][ T426] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.380214][ T426] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.380216][ T426] ? 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)) [ 12.380219][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380221][ T426] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.380225][ T426] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.380230][ T426] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.380232][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.380237][ T426] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.380240][ T426] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.380242][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380244][ T426] ? 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) [ 12.380250][ T426] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.380252][ T426] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.380255][ T426] vprintk_emit (kernel/printk/printk.c:2479) [ 12.380258][ T426] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.380261][ T426] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.380262][ T426] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.380267][ T426] _printk (kernel/printk/printk.c:2504) [ 12.380274][ T426] ? snapshot_read.cold (user.c:?) [ 12.380279][ T426] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.380283][ T426] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 12.380288][ T426] br_init_port (net/bridge/br_stp_if.c:39) [ 12.380291][ T426] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 12.380293][ T426] br_device_event (net/bridge/br.c:120) [ 12.380296][ T426] ? packet_sendmsg_spkt (af_packet.c:?) [ 12.380298][ T426] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 12.380305][ T426] notifier_call_chain (kernel/notifier.c:85) [ 12.380310][ T426] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 12.380316][ T426] ? netif_change_name (net/core/dev.c:1517) [ 12.380320][ T426] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 12.380322][ T426] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 12.380325][ T426] ? __kernel_text_address (kernel/extable.c:79) [ 12.380327][ T426] ? write_profile (profile.c:?) [ 12.380332][ T426] netif_change_flags (net/core/dev.c:9882) [ 12.380336][ T426] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 12.380339][ T426] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.380341][ T426] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.380343][ T426] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.380345][ T426] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.380349][ T426] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.380351][ T426] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.380352][ T426] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.380355][ T426] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.380357][ T426] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.380359][ T426] ? kasan_save_track (mm/kasan/common.c:78) [ 12.380360][ T426] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.380362][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.380364][ T426] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.380367][ T426] ? ___sys_sendmsg (net/socket.c:2758) [ 12.380371][ T426] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.380373][ T426] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.380376][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380378][ T426] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.380380][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380381][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380382][ T426] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.380385][ T426] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 12.380388][ T426] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.380390][ T426] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.380393][ T426] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.380397][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380399][ T426] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.380405][ T426] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.380410][ T426] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.380412][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.380417][ T426] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.380419][ T426] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.380421][ T426] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.380423][ T426] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.380427][ T426] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.380429][ T426] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.380433][ T426] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.380434][ T426] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.380439][ T426] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.380441][ T426] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.380444][ T426] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.380446][ T426] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.380449][ T426] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.380456][ T426] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 12.380458][ T426] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 12.380463][ T426] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.380467][ T426] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.380470][ T426] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.380474][ T426] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.380478][ T426] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.380482][ T426] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.380484][ T426] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.380490][ T426] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.380493][ T426] ____sys_sendmsg (net/socket.c:2713) [ 12.380495][ T426] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.380497][ T426] ? sock_write_iter (net/socket.c:1269) [ 12.380499][ T426] ? move_addr_to_kernel (net/socket.c:258) [ 12.380507][ T426] ___sys_sendmsg (net/socket.c:2767) [ 12.380510][ T426] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.380527][ T426] __sys_sendmsg (net/socket.c:2799) [ 12.380529][ T426] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.380536][ T426] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.380539][ T426] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.380542][ T426] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.380545][ T426] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.380548][ T426] RIP: 0033:0x7f53069fe54e [ 12.380550][ T426] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 12.380552][ T426] RSP: 002b:00007fff7128c120 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.380555][ T426] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f53069fe54e [ 12.380557][ T426] RDX: 0000000000000000 RSI: 00007fff7128c1d0 RDI: 0000000000000005 [ 12.380557][ T426] RBP: 00007fff7128c130 R08: 0000000000000000 R09: 0000000000000000 [ 12.380558][ T426] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131ca [ 12.380559][ T426] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff7128c890 | [ 13.501858][ T526] softirqs last disabled at (13700): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 13.501860][ T526] Preemption disabled at: | [ 13.501861][ T526] 0x0 | [ 13.501871][ T526] Tainted: [W]=WARN [ 13.501872][ T526] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.501874][ T526] Call Trace: [ 13.501876][ T526] [ 13.501877][ T526] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.501884][ T526] __might_resched.cold (kernel/sched/core.c:9234) [ 13.501889][ T526] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.501893][ T526] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.501898][ T526] __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)) [ 13.501900][ T526] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.501906][ T526] ? 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) [ 13.501909][ T526] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.501913][ T526] put_chars (drivers/char/virtio_console.c:1176) [ 13.501916][ T526] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.501917][ T526] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.501921][ T526] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.501926][ T526] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.501934][ T526] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.501937][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.501939][ T526] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.501943][ T526] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.501947][ T526] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.501949][ T526] ? 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)) [ 13.501952][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.501954][ T526] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.501958][ T526] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.501962][ T526] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.501964][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.501969][ T526] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.501972][ T526] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.501974][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.501976][ T526] ? 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) [ 13.501980][ T526] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.501981][ T526] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.501984][ T526] vprintk_emit (kernel/printk/printk.c:2479) [ 13.501987][ T526] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.501989][ T526] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.501991][ T526] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.501996][ T526] _printk (kernel/printk/printk.c:2504) [ 13.502000][ T526] ? snapshot_read.cold (user.c:?) [ 13.502005][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.502009][ T526] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 13.502014][ T526] br_init_port (net/bridge/br_stp_if.c:39) [ 13.502016][ T526] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 13.502018][ T526] br_device_event (net/bridge/br.c:120) [ 13.502021][ T526] ? packet_sendmsg_spkt (af_packet.c:?) [ 13.502023][ T526] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 13.502029][ T526] notifier_call_chain (kernel/notifier.c:85) [ 13.502037][ T526] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 13.502043][ T526] ? netif_change_name (net/core/dev.c:1517) [ 13.502046][ T526] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 13.502049][ T526] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 13.502052][ T526] ? __kernel_text_address (kernel/extable.c:79) [ 13.502054][ T526] ? write_profile (profile.c:?) [ 13.502059][ T526] netif_change_flags (net/core/dev.c:9882) [ 13.502062][ T526] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 13.502066][ T526] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.502068][ T526] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.502069][ T526] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.502071][ T526] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.502075][ T526] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.502077][ T526] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.502079][ T526] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.502081][ T526] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.502083][ T526] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.502085][ T526] ? kasan_save_track (mm/kasan/common.c:78) [ 13.502086][ T526] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 13.502088][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.502090][ T526] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 13.502093][ T526] ? ___sys_sendmsg (net/socket.c:2758) [ 13.502097][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.502099][ T526] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.502102][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.502104][ T526] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.502105][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.502106][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.502108][ T526] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.502110][ T526] ? __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) [ 13.502113][ T526] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.502115][ T526] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.502118][ T526] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.502122][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.502124][ T526] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.502130][ T526] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.502135][ T526] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.502137][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.502141][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.502143][ T526] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.502145][ T526] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.502147][ T526] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.502151][ T526] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.502153][ T526] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.502156][ T526] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.502158][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.502162][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.502164][ T526] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.502168][ T526] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.502170][ T526] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.502173][ T526] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.502179][ T526] ? 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)) [ 13.502181][ T526] ? 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)) [ 13.502186][ T526] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.502190][ T526] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.502193][ T526] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.502197][ T526] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.502201][ T526] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.502205][ T526] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.502206][ T526] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 13.502212][ T526] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 13.502215][ T526] ____sys_sendmsg (net/socket.c:2713) [ 13.502217][ T526] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.502219][ T526] ? sock_write_iter (net/socket.c:1269) [ 13.502221][ T526] ? move_addr_to_kernel (net/socket.c:258) [ 13.502228][ T526] ___sys_sendmsg (net/socket.c:2767) [ 13.502231][ T526] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.502247][ T526] __sys_sendmsg (net/socket.c:2799) [ 13.502250][ T526] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.502256][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.502259][ T526] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.502262][ T526] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.502265][ T526] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.502268][ T526] RIP: 0033:0x7fa41ff9554e [ 13.502270][ T526] 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 [ 13.502272][ T526] RSP: 002b:00007ffca819e7f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.502279][ T526] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa41ff9554e [ 13.502281][ T526] RDX: 0000000000000000 RSI: 00007ffca819e8a0 RDI: 0000000000000005 [ 13.502282][ T526] RBP: 00007ffca819e800 R08: 0000000000000000 R09: 0000000000000000 [ 13.502282][ T526] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131cb [ 13.502283][ T526] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffca819ef60 | [ 15.203455][ T647] softirqs last disabled at (22780): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 15.203458][ T647] Preemption disabled at: | [ 15.203458][ T647] 0x0 | [ 15.203468][ T647] Tainted: [W]=WARN [ 15.203469][ T647] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.203471][ T647] Call Trace: [ 15.203472][ T647] [ 15.203474][ T647] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.203481][ T647] __might_resched.cold (kernel/sched/core.c:9234) [ 15.203485][ T647] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.203489][ T647] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.203494][ T647] __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)) [ 15.203496][ T647] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.203502][ T647] ? 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) [ 15.203505][ T647] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.203508][ T647] put_chars (drivers/char/virtio_console.c:1176) [ 15.203511][ T647] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.203517][ T647] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.203524][ T647] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.203527][ T647] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.203532][ T647] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.203536][ T647] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.203538][ T647] ? 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)) [ 15.203541][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.203543][ T647] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.203547][ T647] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.203551][ T647] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.203553][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.203558][ T647] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.203561][ T647] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.203563][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.203565][ T647] ? 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) [ 15.203569][ T647] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.203570][ T647] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.203573][ T647] vprintk_emit (kernel/printk/printk.c:2479) [ 15.203576][ T647] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.203577][ T647] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 15.203580][ T647] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.203582][ T647] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.203586][ T647] _printk (kernel/printk/printk.c:2504) [ 15.203590][ T647] ? snapshot_read.cold (user.c:?) [ 15.203597][ T647] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 15.203602][ T647] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 15.203605][ T647] br_device_event (net/bridge/br.c:111) [ 15.203607][ T647] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 15.203612][ T647] ? packet_sendmsg_spkt (af_packet.c:?) [ 15.203617][ T647] notifier_call_chain (kernel/notifier.c:85) [ 15.203623][ T647] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 15.203628][ T647] ? netif_change_name (net/core/dev.c:1517) [ 15.203632][ T647] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 15.203635][ T647] ? __kernel_text_address (kernel/extable.c:79) [ 15.203637][ T647] ? write_profile (profile.c:?) [ 15.203642][ T647] netif_change_flags (net/core/dev.c:9882) [ 15.203646][ T647] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 15.203650][ T647] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 15.203652][ T647] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 15.203653][ T647] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 15.203655][ T647] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.203658][ T647] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.203660][ T647] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.203662][ T647] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.203665][ T647] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.203667][ T647] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.203668][ T647] ? kasan_save_track (mm/kasan/common.c:78) [ 15.203669][ T647] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 15.203672][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.203673][ T647] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 15.203677][ T647] ? ___sys_sendmsg (net/socket.c:2758) [ 15.203680][ T647] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.203682][ T647] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.203685][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.203687][ T647] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.203688][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.203690][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.203692][ T647] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 15.203694][ T647] ? __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) [ 15.203695][ T647] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 15.203697][ T647] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.203701][ T647] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 15.203704][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.203706][ T647] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 15.203711][ T647] rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.203717][ T647] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.203719][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.203723][ T647] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.203725][ T647] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.203727][ T647] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.203729][ T647] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.203733][ T647] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.203735][ T647] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.203738][ T647] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.203739][ T647] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.203744][ T647] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.203745][ T647] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.203749][ T647] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 15.203752][ T647] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.203755][ T647] ? netlink_ack (./include/linux/skbuff.h:2718) [ 15.203761][ T647] ? 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)) [ 15.203764][ T647] ? 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)) [ 15.203768][ T647] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 15.203772][ T647] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.203774][ T647] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.203779][ T647] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 15.203783][ T647] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.203786][ T647] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.203788][ T647] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 15.203793][ T647] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 15.203796][ T647] ____sys_sendmsg (net/socket.c:2713) [ 15.203798][ T647] ? copy_msghdr_from_user (net/socket.c:2650) [ 15.203801][ T647] ? sock_write_iter (net/socket.c:1269) [ 15.203802][ T647] ? move_addr_to_kernel (net/socket.c:258) [ 15.203809][ T647] ___sys_sendmsg (net/socket.c:2767) [ 15.203812][ T647] ? copy_msghdr_from_user (net/socket.c:2619) [ 15.203828][ T647] __sys_sendmsg (net/socket.c:2799) [ 15.203831][ T647] ? __sys_sendmsg_sock (net/socket.c:2780) [ 15.203837][ T647] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.203840][ T647] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.203843][ T647] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.203846][ T647] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.203848][ T647] RIP: 0033:0x7fc44be8754e [ 15.203850][ T647] 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 [ 15.203852][ T647] RSP: 002b:00007ffea55d1260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 15.203855][ T647] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc44be8754e [ 15.203856][ T647] RDX: 0000000000000000 RSI: 00007ffea55d1310 RDI: 0000000000000005 [ 15.203857][ T647] RBP: 00007ffea55d1270 R08: 0000000000000000 R09: 0000000000000000 [ 15.203858][ T647] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131cd [ 15.203859][ T647] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea55d19d0 | [ 16.260686][ T747] softirqs last disabled at (21922): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 16.260688][ T747] Preemption disabled at: | [ 16.260689][ T747] 0x0 | [ 16.260700][ T747] Tainted: [W]=WARN [ 16.260701][ T747] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.260702][ T747] Call Trace: [ 16.260704][ T747] [ 16.260705][ T747] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.260712][ T747] __might_resched.cold (kernel/sched/core.c:9234) [ 16.260717][ T747] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.260722][ T747] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.260726][ T747] __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)) [ 16.260728][ T747] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.260734][ T747] ? 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) [ 16.260737][ T747] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.260741][ T747] put_chars (drivers/char/virtio_console.c:1176) [ 16.260743][ T747] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.260749][ T747] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.260757][ T747] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.260760][ T747] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.260765][ T747] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.260769][ T747] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.260771][ T747] ? 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)) [ 16.260774][ T747] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.260777][ T747] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.260781][ T747] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.260785][ T747] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.260787][ T747] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.260792][ T747] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.260795][ T747] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.260797][ T747] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.260799][ T747] ? 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) [ 16.260803][ T747] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.260804][ T747] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.260807][ T747] vprintk_emit (kernel/printk/printk.c:2479) [ 16.260810][ T747] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.260812][ T747] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 16.260814][ T747] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.260816][ T747] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.260821][ T747] _printk (kernel/printk/printk.c:2504) [ 16.260824][ T747] ? snapshot_read.cold (user.c:?) [ 16.260832][ T747] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 16.260836][ T747] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 16.260840][ T747] br_device_event (net/bridge/br.c:111) [ 16.260842][ T747] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 16.260846][ T747] ? packet_sendmsg_spkt (af_packet.c:?) [ 16.260851][ T747] notifier_call_chain (kernel/notifier.c:85) [ 16.260857][ T747] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 16.260863][ T747] ? netif_change_name (net/core/dev.c:1517) [ 16.260866][ T747] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 16.260869][ T747] ? __kernel_text_address (kernel/extable.c:79) [ 16.260872][ T747] ? write_profile (profile.c:?) [ 16.260877][ T747] netif_change_flags (net/core/dev.c:9882) [ 16.260881][ T747] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 16.260884][ T747] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 16.260886][ T747] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 16.260888][ T747] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 16.260890][ T747] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 16.260893][ T747] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.260895][ T747] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.260897][ T747] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.260899][ T747] ? kasan_save_stack (mm/kasan/common.c:58) [ 16.260902][ T747] ? kasan_save_stack (mm/kasan/common.c:57) [ 16.260903][ T747] ? kasan_save_track (mm/kasan/common.c:78) [ 16.260904][ T747] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 16.260906][ T747] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.260908][ T747] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 16.260911][ T747] ? ___sys_sendmsg (net/socket.c:2758) [ 16.260915][ T747] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.260917][ T747] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.260920][ T747] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.260921][ T747] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.260923][ T747] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.260924][ T747] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.260926][ T747] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 16.260928][ T747] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 16.260930][ T747] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 16.260932][ T747] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.260935][ T747] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 16.260938][ T747] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.260941][ T747] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 16.260946][ T747] rtnl_newlink (net/core/rtnetlink.c:4215) [ 16.260951][ T747] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.260953][ T747] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.260958][ T747] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.260960][ T747] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.260962][ T747] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.260964][ T747] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.260968][ T747] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.260972][ T747] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 16.260975][ T747] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.260976][ T747] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.260981][ T747] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.260982][ T747] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.260986][ T747] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 16.260989][ T747] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.260992][ T747] ? netlink_ack (./include/linux/skbuff.h:2718) [ 16.260998][ T747] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 16.261001][ T747] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 16.261005][ T747] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 16.261009][ T747] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 16.261012][ T747] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.261016][ T747] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 16.261020][ T747] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 16.261024][ T747] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.261025][ T747] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 16.261031][ T747] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 16.261034][ T747] ____sys_sendmsg (net/socket.c:2713) [ 16.261036][ T747] ? copy_msghdr_from_user (net/socket.c:2650) [ 16.261038][ T747] ? sock_write_iter (net/socket.c:1269) [ 16.261040][ T747] ? move_addr_to_kernel (net/socket.c:258) [ 16.261047][ T747] ___sys_sendmsg (net/socket.c:2767) [ 16.261050][ T747] ? copy_msghdr_from_user (net/socket.c:2619) [ 16.261066][ T747] __sys_sendmsg (net/socket.c:2799) [ 16.261069][ T747] ? __sys_sendmsg_sock (net/socket.c:2780) [ 16.261075][ T747] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.261078][ T747] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.261081][ T747] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.261084][ T747] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.261086][ T747] RIP: 0033:0x7f9fa3a5754e [ 16.261089][ T747] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 16.261091][ T747] RSP: 002b:00007fffd6444200 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 16.261093][ T747] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9fa3a5754e [ 16.261094][ T747] RDX: 0000000000000000 RSI: 00007fffd64442b0 RDI: 0000000000000005 [ 16.261095][ T747] RBP: 00007fffd6444210 R08: 0000000000000000 R09: 0000000000000000 [ 16.261096][ T747] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131ce [ 16.261097][ T747] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd6444970 | [ 17.375318][ T796] softirqs last disabled at (622): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 17.375321][ T796] Preemption disabled at: | [ 17.375321][ T796] 0x0 | [ 17.375332][ T796] Tainted: [W]=WARN [ 17.375333][ T796] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.375335][ T796] Workqueue: events_unbound linkwatch_event [ 17.375339][ T796] Call Trace: [ 17.375340][ T796] [ 17.375342][ T796] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.375349][ T796] __might_resched.cold (kernel/sched/core.c:9234) [ 17.375353][ T796] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.375357][ T796] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.375362][ T796] __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)) [ 17.375364][ T796] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.375371][ T796] ? 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) [ 17.375374][ T796] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.375377][ T796] put_chars (drivers/char/virtio_console.c:1176) [ 17.375380][ T796] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.375383][ T796] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.375386][ T796] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.375389][ T796] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.375393][ T796] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.375397][ T796] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.375399][ T796] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.375400][ T796] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.375405][ T796] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.375407][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.375411][ T796] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.375415][ T796] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.375419][ T796] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.375421][ T796] ? 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)) [ 17.375425][ T796] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.375427][ T796] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.375431][ T796] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.375435][ T796] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.375437][ T796] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.375442][ T796] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.375445][ T796] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.375447][ T796] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.375449][ T796] ? 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) [ 17.375453][ T796] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.375454][ T796] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.375457][ T796] vprintk_emit (kernel/printk/printk.c:2479) [ 17.375460][ T796] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.375462][ T796] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.375464][ T796] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.375468][ T796] _printk (kernel/printk/printk.c:2504) [ 17.375472][ T796] ? snapshot_read.cold (user.c:?) [ 17.375477][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.375481][ T796] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 17.375485][ T796] br_init_port (net/bridge/br_stp_if.c:39) [ 17.375488][ T796] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 17.375490][ T796] br_port_carrier_check (net/bridge/br_if.c:90) [ 17.375494][ T796] br_device_event (net/bridge/br.c:101) [ 17.375497][ T796] ? packet_sendmsg_spkt (af_packet.c:?) [ 17.375499][ T796] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 17.375506][ T796] notifier_call_chain (kernel/notifier.c:85) [ 17.375512][ T796] netif_state_change (net/core/dev.c:1625) [ 17.375516][ T796] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 17.375521][ T796] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 17.375523][ T796] __linkwatch_run_queue (net/core/link_watch.c:240) [ 17.375526][ T796] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 17.375529][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.375533][ T796] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 17.375535][ T796] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 17.375539][ T796] process_one_work (kernel/workqueue.c:3387) [ 17.375545][ T796] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 17.375548][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.375556][ T796] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 17.375560][ T796] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 17.375562][ T796] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 17.375565][ T796] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 17.375568][ T796] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 17.375570][ T796] kthread (kernel/kthread.c:436) [ 17.375572][ T796] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.375576][ T796] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.375579][ T796] ret_from_fork (arch/x86/kernel/process.c:158) [ 17.375583][ T796] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 17.375587][ T796] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 17.375590][ T796] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.375593][ T796] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 18.688061][ T949] softirqs last disabled at (13820): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 18.688063][ T949] Preemption disabled at: | [ 18.688064][ T949] 0x0 | [ 18.688074][ T949] Tainted: [W]=WARN [ 18.688075][ T949] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.688077][ T949] Call Trace: [ 18.688078][ T949] [ 18.688080][ T949] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.688086][ T949] __might_resched.cold (kernel/sched/core.c:9234) [ 18.688090][ T949] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.688094][ T949] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.688099][ T949] __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)) [ 18.688101][ T949] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.688107][ T949] ? 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) [ 18.688110][ T949] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.688114][ T949] put_chars (drivers/char/virtio_console.c:1176) [ 18.688117][ T949] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.688118][ T949] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.688121][ T949] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.688127][ T949] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.688135][ T949] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.688137][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688139][ T949] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.688143][ T949] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.688147][ T949] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.688149][ T949] ? 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)) [ 18.688152][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688154][ T949] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.688158][ T949] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.688162][ T949] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.688164][ T949] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.688169][ T949] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.688172][ T949] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.688174][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688176][ T949] ? 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) [ 18.688179][ T949] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.688181][ T949] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.688184][ T949] vprintk_emit (kernel/printk/printk.c:2479) [ 18.688187][ T949] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.688189][ T949] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.688191][ T949] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.688196][ T949] _printk (kernel/printk/printk.c:2504) [ 18.688199][ T949] ? snapshot_read.cold (user.c:?) [ 18.688204][ T949] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.688208][ T949] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 18.688213][ T949] br_init_port (net/bridge/br_stp_if.c:39) [ 18.688216][ T949] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 18.688218][ T949] br_device_event (net/bridge/br.c:120) [ 18.688221][ T949] ? packet_sendmsg_spkt (af_packet.c:?) [ 18.688222][ T949] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 18.688229][ T949] notifier_call_chain (kernel/notifier.c:85) [ 18.688235][ T949] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 18.688240][ T949] ? netif_change_name (net/core/dev.c:1517) [ 18.688243][ T949] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 18.688246][ T949] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 18.688249][ T949] ? __kernel_text_address (kernel/extable.c:79) [ 18.688250][ T949] ? write_profile (profile.c:?) [ 18.688255][ T949] netif_change_flags (net/core/dev.c:9882) [ 18.688259][ T949] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 18.688262][ T949] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 18.688264][ T949] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 18.688266][ T949] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 18.688268][ T949] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 18.688271][ T949] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.688273][ T949] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.688275][ T949] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.688277][ T949] ? kasan_save_stack (mm/kasan/common.c:58) [ 18.688280][ T949] ? kasan_save_stack (mm/kasan/common.c:57) [ 18.688281][ T949] ? kasan_save_track (mm/kasan/common.c:78) [ 18.688282][ T949] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 18.688284][ T949] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.688286][ T949] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 18.688289][ T949] ? ___sys_sendmsg (net/socket.c:2758) [ 18.688298][ T949] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.688300][ T949] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.688302][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688304][ T949] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.688306][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688307][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688308][ T949] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 18.688311][ T949] ? __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) [ 18.688314][ T949] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 18.688316][ T949] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.688319][ T949] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 18.688323][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688325][ T949] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 18.688330][ T949] rtnl_newlink (net/core/rtnetlink.c:4215) [ 18.688335][ T949] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.688337][ T949] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.688341][ T949] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.688343][ T949] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.688346][ T949] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.688348][ T949] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.688351][ T949] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.688353][ T949] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 18.688357][ T949] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.688358][ T949] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.688362][ T949] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.688364][ T949] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.688368][ T949] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 18.688370][ T949] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.688372][ T949] ? netlink_ack (./include/linux/skbuff.h:2718) [ 18.688379][ T949] ? 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)) [ 18.688381][ T949] ? 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)) [ 18.688385][ T949] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 18.688389][ T949] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 18.688392][ T949] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.688396][ T949] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 18.688400][ T949] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 18.688404][ T949] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.688405][ T949] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 18.688411][ T949] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 18.688414][ T949] ____sys_sendmsg (net/socket.c:2713) [ 18.688416][ T949] ? copy_msghdr_from_user (net/socket.c:2650) [ 18.688418][ T949] ? sock_write_iter (net/socket.c:1269) [ 18.688419][ T949] ? move_addr_to_kernel (net/socket.c:258) [ 18.688427][ T949] ___sys_sendmsg (net/socket.c:2767) [ 18.688430][ T949] ? copy_msghdr_from_user (net/socket.c:2619) [ 18.688445][ T949] __sys_sendmsg (net/socket.c:2799) [ 18.688448][ T949] ? __sys_sendmsg_sock (net/socket.c:2780) [ 18.688454][ T949] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.688457][ T949] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 18.688460][ T949] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 18.688463][ T949] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.688466][ T949] RIP: 0033:0x7f27acc5454e [ 18.688468][ T949] 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 [ 18.688469][ T949] RSP: 002b:00007ffdf12cc390 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 18.688472][ T949] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f27acc5454e [ 18.688473][ T949] RDX: 0000000000000000 RSI: 00007ffdf12cc440 RDI: 0000000000000005 [ 18.688474][ T949] RBP: 00007ffdf12cc3a0 R08: 0000000000000000 R09: 0000000000000000 [ 18.688475][ T949] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131d1 [ 18.688476][ T949] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdf12ccb00 | [ 19.823387][ T1049] softirqs last disabled at (20786): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 19.823390][ T1049] Preemption disabled at: | [ 19.823390][ T1049] 0x0 | [ 19.823400][ T1049] Tainted: [W]=WARN [ 19.823401][ T1049] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.823403][ T1049] Call Trace: [ 19.823404][ T1049] [ 19.823406][ T1049] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.823412][ T1049] __might_resched.cold (kernel/sched/core.c:9234) [ 19.823417][ T1049] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.823421][ T1049] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.823425][ T1049] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 19.823427][ T1049] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.823434][ T1049] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 19.823437][ T1049] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.823440][ T1049] put_chars (drivers/char/virtio_console.c:1176) [ 19.823443][ T1049] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.823444][ T1049] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.823448][ T1049] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.823453][ T1049] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.823461][ T1049] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.823463][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823465][ T1049] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.823469][ T1049] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.823473][ T1049] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.823475][ T1049] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 19.823478][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823480][ T1049] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.823484][ T1049] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.823488][ T1049] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.823490][ T1049] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.823495][ T1049] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.823498][ T1049] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.823500][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823502][ T1049] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 19.823505][ T1049] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.823507][ T1049] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.823510][ T1049] vprintk_emit (kernel/printk/printk.c:2479) [ 19.823513][ T1049] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.823515][ T1049] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.823517][ T1049] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.823521][ T1049] _printk (kernel/printk/printk.c:2504) [ 19.823525][ T1049] ? snapshot_read.cold (user.c:?) [ 19.823530][ T1049] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.823534][ T1049] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 19.823539][ T1049] br_init_port (net/bridge/br_stp_if.c:39) [ 19.823541][ T1049] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 19.823543][ T1049] br_device_event (net/bridge/br.c:120) [ 19.823546][ T1049] ? packet_sendmsg_spkt (af_packet.c:?) [ 19.823548][ T1049] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 19.823554][ T1049] notifier_call_chain (kernel/notifier.c:85) [ 19.823560][ T1049] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 19.823565][ T1049] ? netif_change_name (net/core/dev.c:1517) [ 19.823569][ T1049] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 19.823571][ T1049] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 19.823574][ T1049] ? __kernel_text_address (kernel/extable.c:79) [ 19.823576][ T1049] ? write_profile (profile.c:?) [ 19.823581][ T1049] netif_change_flags (net/core/dev.c:9882) [ 19.823585][ T1049] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 19.823588][ T1049] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 19.823590][ T1049] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 19.823591][ T1049] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 19.823593][ T1049] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 19.823597][ T1049] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.823599][ T1049] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.823600][ T1049] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.823603][ T1049] ? kasan_save_stack (mm/kasan/common.c:58) [ 19.823605][ T1049] ? kasan_save_stack (mm/kasan/common.c:57) [ 19.823606][ T1049] ? kasan_save_track (mm/kasan/common.c:78) [ 19.823607][ T1049] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 19.823610][ T1049] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.823612][ T1049] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 19.823615][ T1049] ? ___sys_sendmsg (net/socket.c:2758) [ 19.823619][ T1049] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.823621][ T1049] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.823623][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823625][ T1049] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.823627][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823628][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823629][ T1049] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 19.823632][ T1049] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 19.823634][ T1049] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 19.823636][ T1049] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.823640][ T1049] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 19.823643][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823645][ T1049] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 19.823651][ T1049] rtnl_newlink (net/core/rtnetlink.c:4215) [ 19.823656][ T1049] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.823658][ T1049] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.823663][ T1049] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.823664][ T1049] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.823666][ T1049] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.823668][ T1049] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.823672][ T1049] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.823674][ T1049] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 19.823677][ T1049] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.823678][ T1049] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.823683][ T1049] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.823685][ T1049] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.823688][ T1049] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 19.823691][ T1049] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.823694][ T1049] ? netlink_ack (./include/linux/skbuff.h:2718) [ 19.823700][ T1049] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 19.823702][ T1049] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 19.823707][ T1049] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 19.823711][ T1049] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 19.823713][ T1049] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.823718][ T1049] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 19.823722][ T1049] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 19.823725][ T1049] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.823727][ T1049] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 19.823732][ T1049] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 19.823735][ T1049] ____sys_sendmsg (net/socket.c:2713) [ 19.823737][ T1049] ? copy_msghdr_from_user (net/socket.c:2650) [ 19.823740][ T1049] ? sock_write_iter (net/socket.c:1269) [ 19.823741][ T1049] ? move_addr_to_kernel (net/socket.c:258) [ 19.823749][ T1049] ___sys_sendmsg (net/socket.c:2767) [ 19.823751][ T1049] ? copy_msghdr_from_user (net/socket.c:2619) [ 19.823767][ T1049] __sys_sendmsg (net/socket.c:2799) [ 19.823770][ T1049] ? __sys_sendmsg_sock (net/socket.c:2780) [ 19.823776][ T1049] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.823779][ T1049] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.823782][ T1049] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.823785][ T1049] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.823787][ T1049] RIP: 0033:0x7f12fc60454e [ 19.823790][ T1049] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 19.823791][ T1049] RSP: 002b:00007fffa57d6d60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 19.823794][ T1049] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f12fc60454e [ 19.823795][ T1049] RDX: 0000000000000000 RSI: 00007fffa57d6e10 RDI: 0000000000000005 [ 19.823796][ T1049] RBP: 00007fffa57d6d70 R08: 0000000000000000 R09: 0000000000000000 [ 19.823797][ T1049] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131d2 [ 19.823798][ T1049] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffa57d74d0 | [ 21.420960][ T1175] softirqs last disabled at (20822): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 21.420962][ T1175] Preemption disabled at: | [ 21.420962][ T1175] 0x0 | [ 21.420973][ T1175] Tainted: [W]=WARN [ 21.420974][ T1175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.420976][ T1175] Call Trace: [ 21.420977][ T1175] [ 21.420979][ T1175] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 21.420986][ T1175] __might_resched.cold (kernel/sched/core.c:9234) [ 21.420990][ T1175] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 21.420994][ T1175] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 21.420999][ T1175] __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)) [ 21.421000][ T1175] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.421007][ T1175] ? 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) [ 21.421010][ T1175] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.421014][ T1175] put_chars (drivers/char/virtio_console.c:1176) [ 21.421016][ T1175] ? __send_to_port (drivers/char/virtio_console.c:654) [ 21.421022][ T1175] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 21.421030][ T1175] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 21.421033][ T1175] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.421040][ T1175] console_emit_next_record (kernel/printk/printk.c:3183) [ 21.421044][ T1175] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 21.421046][ T1175] ? 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)) [ 21.421049][ T1175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.421052][ T1175] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.421056][ T1175] console_flush_one_record (kernel/printk/printk.c:3268) [ 21.421060][ T1175] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 21.421062][ T1175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.421068][ T1175] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 21.421071][ T1175] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 21.421072][ T1175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.421074][ T1175] ? 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) [ 21.421078][ T1175] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 21.421080][ T1175] ? vprintk_emit (kernel/printk/printk.c:2478) [ 21.421082][ T1175] vprintk_emit (kernel/printk/printk.c:2479) [ 21.421085][ T1175] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 21.421087][ T1175] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 21.421089][ T1175] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.421091][ T1175] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.421095][ T1175] _printk (kernel/printk/printk.c:2504) [ 21.421099][ T1175] ? snapshot_read.cold (user.c:?) [ 21.421106][ T1175] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 21.421111][ T1175] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 21.421115][ T1175] br_device_event (net/bridge/br.c:111) [ 21.421117][ T1175] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 21.421121][ T1175] ? packet_sendmsg_spkt (af_packet.c:?) [ 21.421126][ T1175] notifier_call_chain (kernel/notifier.c:85) [ 21.421132][ T1175] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 21.421137][ T1175] ? netif_change_name (net/core/dev.c:1517) [ 21.421141][ T1175] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 21.421144][ T1175] ? __kernel_text_address (kernel/extable.c:79) [ 21.421146][ T1175] ? write_profile (profile.c:?) [ 21.421151][ T1175] netif_change_flags (net/core/dev.c:9882) [ 21.421155][ T1175] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 21.421158][ T1175] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 21.421160][ T1175] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 21.421162][ T1175] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 21.421164][ T1175] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 21.421167][ T1175] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.421169][ T1175] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.421171][ T1175] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 21.421173][ T1175] ? kasan_save_stack (mm/kasan/common.c:58) [ 21.421176][ T1175] ? kasan_save_stack (mm/kasan/common.c:57) [ 21.421177][ T1175] ? kasan_save_track (mm/kasan/common.c:78) [ 21.421178][ T1175] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 21.421180][ T1175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.421182][ T1175] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 21.421185][ T1175] ? ___sys_sendmsg (net/socket.c:2758) [ 21.421189][ T1175] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.421191][ T1175] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.421193][ T1175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.421195][ T1175] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.421197][ T1175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.421198][ T1175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.421200][ T1175] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 21.421202][ T1175] ? __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) [ 21.421203][ T1175] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 21.421205][ T1175] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.421208][ T1175] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 21.421212][ T1175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.421214][ T1175] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 21.421219][ T1175] rtnl_newlink (net/core/rtnetlink.c:4215) [ 21.421225][ T1175] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.421227][ T1175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.421231][ T1175] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.421233][ T1175] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.421235][ T1175] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.421237][ T1175] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.421241][ T1175] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.421243][ T1175] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 21.421246][ T1175] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.421247][ T1175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.421252][ T1175] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.421254][ T1175] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.421257][ T1175] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 21.421260][ T1175] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.421263][ T1175] ? netlink_ack (./include/linux/skbuff.h:2718) [ 21.421270][ T1175] ? 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)) [ 21.421272][ T1175] ? 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)) [ 21.421276][ T1175] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 21.421280][ T1175] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 21.421283][ T1175] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.421287][ T1175] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 21.421291][ T1175] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 21.421295][ T1175] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.421297][ T1175] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 21.421307][ T1175] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 21.421310][ T1175] ____sys_sendmsg (net/socket.c:2713) [ 21.421313][ T1175] ? copy_msghdr_from_user (net/socket.c:2650) [ 21.421315][ T1175] ? sock_write_iter (net/socket.c:1269) [ 21.421316][ T1175] ? move_addr_to_kernel (net/socket.c:258) [ 21.421324][ T1175] ___sys_sendmsg (net/socket.c:2767) [ 21.421327][ T1175] ? copy_msghdr_from_user (net/socket.c:2619) [ 21.421343][ T1175] __sys_sendmsg (net/socket.c:2799) [ 21.421346][ T1175] ? __sys_sendmsg_sock (net/socket.c:2780) [ 21.421352][ T1175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.421355][ T1175] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 21.421358][ T1175] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 21.421361][ T1175] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 21.421363][ T1175] RIP: 0033:0x7ff4d5bf354e [ 21.421365][ T1175] 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 [ 21.421367][ T1175] RSP: 002b:00007ffc26ac9770 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 21.421370][ T1175] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff4d5bf354e [ 21.421371][ T1175] RDX: 0000000000000000 RSI: 00007ffc26ac9820 RDI: 0000000000000005 [ 21.421372][ T1175] RBP: 00007ffc26ac9780 R08: 0000000000000000 R09: 0000000000000000 [ 21.421373][ T1175] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131d3 [ 21.421374][ T1175] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc26ac9ee0 | [ 22.505884][ T1267] softirqs last disabled at (16288): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 22.505887][ T1267] Preemption disabled at: | [ 22.505887][ T1267] 0x0 | [ 22.505898][ T1267] Tainted: [W]=WARN [ 22.505899][ T1267] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.505901][ T1267] Call Trace: [ 22.505902][ T1267] [ 22.505904][ T1267] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.505910][ T1267] __might_resched.cold (kernel/sched/core.c:9234) [ 22.505915][ T1267] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.505919][ T1267] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.505924][ T1267] __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)) [ 22.505926][ T1267] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.505935][ T1267] ? 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) [ 22.505939][ T1267] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.505943][ T1267] put_chars (drivers/char/virtio_console.c:1176) [ 22.505945][ T1267] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.505951][ T1267] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.505959][ T1267] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.505962][ T1267] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.505966][ T1267] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.505970][ T1267] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.505972][ T1267] ? 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)) [ 22.505976][ T1267] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.505978][ T1267] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.505982][ T1267] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.505987][ T1267] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.505989][ T1267] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.505994][ T1267] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.505997][ T1267] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.505998][ T1267] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.506000][ T1267] ? 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) [ 22.506004][ T1267] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.506005][ T1267] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.506008][ T1267] vprintk_emit (kernel/printk/printk.c:2479) [ 22.506012][ T1267] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.506013][ T1267] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 22.506015][ T1267] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.506017][ T1267] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.506021][ T1267] _printk (kernel/printk/printk.c:2504) [ 22.506025][ T1267] ? snapshot_read.cold (user.c:?) [ 22.506032][ T1267] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 22.506041][ T1267] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 22.506044][ T1267] br_device_event (net/bridge/br.c:111) [ 22.506046][ T1267] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 22.506052][ T1267] ? packet_sendmsg_spkt (af_packet.c:?) [ 22.506058][ T1267] notifier_call_chain (kernel/notifier.c:85) [ 22.506064][ T1267] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 22.506069][ T1267] ? netif_change_name (net/core/dev.c:1517) [ 22.506073][ T1267] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 22.506076][ T1267] ? __kernel_text_address (kernel/extable.c:79) [ 22.506078][ T1267] ? write_profile (profile.c:?) [ 22.506083][ T1267] netif_change_flags (net/core/dev.c:9882) [ 22.506087][ T1267] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 22.506090][ T1267] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 22.506093][ T1267] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 22.506094][ T1267] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 22.506096][ T1267] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 22.506099][ T1267] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.506101][ T1267] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.506103][ T1267] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.506105][ T1267] ? kasan_save_stack (mm/kasan/common.c:58) [ 22.506108][ T1267] ? kasan_save_stack (mm/kasan/common.c:57) [ 22.506109][ T1267] ? kasan_save_track (mm/kasan/common.c:78) [ 22.506110][ T1267] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 22.506112][ T1267] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.506114][ T1267] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 22.506117][ T1267] ? ___sys_sendmsg (net/socket.c:2758) [ 22.506121][ T1267] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.506123][ T1267] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 22.506126][ T1267] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.506127][ T1267] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.506129][ T1267] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.506130][ T1267] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.506132][ T1267] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 22.506134][ T1267] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 22.506135][ T1267] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 22.506137][ T1267] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 22.506140][ T1267] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 22.506144][ T1267] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.506146][ T1267] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 22.506151][ T1267] rtnl_newlink (net/core/rtnetlink.c:4215) [ 22.506157][ T1267] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.506158][ T1267] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.506163][ T1267] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.506165][ T1267] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.506167][ T1267] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.506169][ T1267] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.506173][ T1267] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 22.506175][ T1267] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 22.506178][ T1267] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 22.506179][ T1267] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.506185][ T1267] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.506188][ T1267] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.506193][ T1267] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 22.506196][ T1267] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 22.506199][ T1267] ? netlink_ack (./include/linux/skbuff.h:2718) [ 22.506205][ T1267] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 22.506207][ T1267] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 22.506212][ T1267] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 22.506216][ T1267] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 22.506218][ T1267] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 22.506222][ T1267] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 22.506226][ T1267] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 22.506230][ T1267] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.506232][ T1267] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 22.506237][ T1267] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 22.506240][ T1267] ____sys_sendmsg (net/socket.c:2713) [ 22.506242][ T1267] ? copy_msghdr_from_user (net/socket.c:2650) [ 22.506244][ T1267] ? sock_write_iter (net/socket.c:1269) [ 22.506246][ T1267] ? move_addr_to_kernel (net/socket.c:258) [ 22.506253][ T1267] ___sys_sendmsg (net/socket.c:2767) [ 22.506256][ T1267] ? copy_msghdr_from_user (net/socket.c:2619) [ 22.506272][ T1267] __sys_sendmsg (net/socket.c:2799) [ 22.506275][ T1267] ? __sys_sendmsg_sock (net/socket.c:2780) [ 22.506281][ T1267] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.506284][ T1267] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.506287][ T1267] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.506290][ T1267] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.506293][ T1267] RIP: 0033:0x7fb678b0854e [ 22.506295][ T1267] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 22.506297][ T1267] RSP: 002b:00007ffeb1439010 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 22.506299][ T1267] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb678b0854e [ 22.506301][ T1267] RDX: 0000000000000000 RSI: 00007ffeb14390c0 RDI: 0000000000000005 [ 22.506303][ T1267] RBP: 00007ffeb1439020 R08: 0000000000000000 R09: 0000000000000000 [ 22.506304][ T1267] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131d4 [ 22.506310][ T1267] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb1439780 | [ 24.392621][ T45] softirqs last disabled at (116428): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 24.392624][ T45] Preemption disabled at: | [ 24.392624][ T45] 0x0 | [ 24.392635][ T45] Tainted: [W]=WARN [ 24.392636][ T45] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.392638][ T45] Workqueue: events_unbound linkwatch_event [ 24.392641][ T45] Call Trace: [ 24.392643][ T45] [ 24.392644][ T45] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.392650][ T45] __might_resched.cold (kernel/sched/core.c:9234) [ 24.392655][ T45] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.392659][ T45] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.392663][ T45] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 24.392665][ T45] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.392672][ T45] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 24.392675][ T45] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.392679][ T45] put_chars (drivers/char/virtio_console.c:1176) [ 24.392681][ T45] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.392684][ T45] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.392687][ T45] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.392690][ T45] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.392694][ T45] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.392698][ T45] ? mark_usage (kernel/locking/lockdep.c:4690) [ 24.392700][ T45] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.392702][ T45] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.392706][ T45] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.392708][ T45] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.392712][ T45] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.392717][ T45] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.392721][ T45] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.392723][ T45] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 24.392726][ T45] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.392728][ T45] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.392732][ T45] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.392736][ T45] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.392738][ T45] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.392744][ T45] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.392746][ T45] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.392748][ T45] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.392750][ T45] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 24.392754][ T45] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.392755][ T45] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.392758][ T45] vprintk_emit (kernel/printk/printk.c:2479) [ 24.392761][ T45] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.392763][ T45] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.392765][ T45] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.392769][ T45] _printk (kernel/printk/printk.c:2504) [ 24.392773][ T45] ? snapshot_read.cold (user.c:?) [ 24.392778][ T45] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.392782][ T45] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 24.392787][ T45] br_init_port (net/bridge/br_stp_if.c:39) [ 24.392789][ T45] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 24.392791][ T45] br_port_carrier_check (net/bridge/br_if.c:90) [ 24.392795][ T45] br_device_event (net/bridge/br.c:101) [ 24.392798][ T45] ? packet_sendmsg_spkt (af_packet.c:?) [ 24.392800][ T45] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 24.392807][ T45] notifier_call_chain (kernel/notifier.c:85) [ 24.392813][ T45] netif_state_change (net/core/dev.c:1625) [ 24.392818][ T45] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.392823][ T45] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 24.392825][ T45] __linkwatch_run_queue (net/core/link_watch.c:240) [ 24.392828][ T45] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.392830][ T45] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.392835][ T45] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 24.392837][ T45] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 24.392840][ T45] process_one_work (kernel/workqueue.c:3387) [ 24.392847][ T45] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 24.392850][ T45] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.392858][ T45] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 24.392865][ T45] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 24.392867][ T45] kthread (kernel/kthread.c:436) [ 24.392869][ T45] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 24.392872][ T45] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.392875][ T45] ret_from_fork (arch/x86/kernel/process.c:158) [ 24.392880][ T45] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 24.392883][ T45] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 24.392887][ T45] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.392889][ T45] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 25.651873][ T1539] softirqs last disabled at (20124): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 25.651876][ T1539] Preemption disabled at: | [ 25.651876][ T1539] 0x0 | [ 25.651887][ T1539] Tainted: [W]=WARN [ 25.651888][ T1539] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.651889][ T1539] Call Trace: [ 25.651891][ T1539] [ 25.651893][ T1539] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.651899][ T1539] __might_resched.cold (kernel/sched/core.c:9234) [ 25.651904][ T1539] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.651908][ T1539] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.651913][ T1539] __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)) [ 25.651915][ T1539] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.651921][ T1539] ? 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) [ 25.651924][ T1539] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.651928][ T1539] put_chars (drivers/char/virtio_console.c:1176) [ 25.651930][ T1539] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.651932][ T1539] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.651935][ T1539] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.651941][ T1539] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.651949][ T1539] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.651951][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.651953][ T1539] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.651957][ T1539] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.651961][ T1539] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.651963][ T1539] ? 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)) [ 25.651967][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.651968][ T1539] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.651972][ T1539] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.651976][ T1539] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.651978][ T1539] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.651984][ T1539] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.651987][ T1539] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.651988][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.651990][ T1539] ? 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) [ 25.651994][ T1539] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.651996][ T1539] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.651999][ T1539] vprintk_emit (kernel/printk/printk.c:2479) [ 25.652002][ T1539] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.652004][ T1539] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.652006][ T1539] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.652010][ T1539] _printk (kernel/printk/printk.c:2504) [ 25.652014][ T1539] ? snapshot_read.cold (user.c:?) [ 25.652019][ T1539] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.652023][ T1539] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 25.652027][ T1539] br_init_port (net/bridge/br_stp_if.c:39) [ 25.652030][ T1539] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 25.652032][ T1539] br_device_event (net/bridge/br.c:120) [ 25.652035][ T1539] ? packet_sendmsg_spkt (af_packet.c:?) [ 25.652038][ T1539] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 25.652045][ T1539] notifier_call_chain (kernel/notifier.c:85) [ 25.652051][ T1539] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 25.652056][ T1539] ? netif_change_name (net/core/dev.c:1517) [ 25.652060][ T1539] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 25.652062][ T1539] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 25.652065][ T1539] ? __kernel_text_address (kernel/extable.c:79) [ 25.652067][ T1539] ? write_profile (profile.c:?) [ 25.652072][ T1539] netif_change_flags (net/core/dev.c:9882) [ 25.652076][ T1539] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 25.652079][ T1539] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.652081][ T1539] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.652083][ T1539] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.652085][ T1539] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.652088][ T1539] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.652090][ T1539] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.652092][ T1539] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.652094][ T1539] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.652097][ T1539] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.652098][ T1539] ? kasan_save_track (mm/kasan/common.c:78) [ 25.652099][ T1539] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.652102][ T1539] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.652104][ T1539] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.652107][ T1539] ? ___sys_sendmsg (net/socket.c:2758) [ 25.652111][ T1539] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.652113][ T1539] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.652115][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.652117][ T1539] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.652118][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.652120][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.652121][ T1539] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.652124][ T1539] ? __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) [ 25.652127][ T1539] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.652128][ T1539] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.652132][ T1539] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.652135][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.652137][ T1539] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.652143][ T1539] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.652148][ T1539] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.652150][ T1539] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.652154][ T1539] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.652156][ T1539] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.652158][ T1539] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.652160][ T1539] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.652164][ T1539] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.652166][ T1539] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.652169][ T1539] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.652171][ T1539] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.652175][ T1539] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.652177][ T1539] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.652180][ T1539] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.652182][ T1539] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.652185][ T1539] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.652192][ T1539] ? 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)) [ 25.652194][ T1539] ? 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)) [ 25.652198][ T1539] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.652202][ T1539] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.652204][ T1539] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.652209][ T1539] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.652213][ T1539] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.652216][ T1539] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.652218][ T1539] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.652224][ T1539] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.652226][ T1539] ____sys_sendmsg (net/socket.c:2713) [ 25.652229][ T1539] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.652231][ T1539] ? sock_write_iter (net/socket.c:1269) [ 25.652232][ T1539] ? move_addr_to_kernel (net/socket.c:258) [ 25.652240][ T1539] ___sys_sendmsg (net/socket.c:2767) [ 25.652243][ T1539] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.652258][ T1539] __sys_sendmsg (net/socket.c:2799) [ 25.652261][ T1539] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.652267][ T1539] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.652270][ T1539] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.652273][ T1539] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.652276][ T1539] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.652278][ T1539] RIP: 0033:0x7fd0cfc6054e [ 25.652281][ T1539] 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 [ 25.652282][ T1539] RSP: 002b:00007fff6f9772d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.652285][ T1539] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd0cfc6054e [ 25.652286][ T1539] RDX: 0000000000000000 RSI: 00007fff6f977380 RDI: 0000000000000005 [ 25.652287][ T1539] RBP: 00007fff6f9772e0 R08: 0000000000000000 R09: 0000000000000000 [ 25.652288][ T1539] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131d8 [ 25.652289][ T1539] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6f977a40 | [ 26.658002][ T1641] softirqs last disabled at (13894): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 26.658005][ T1641] Preemption disabled at: | [ 26.658005][ T1641] 0x0 | [ 26.658016][ T1641] Tainted: [W]=WARN [ 26.658017][ T1641] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.658018][ T1641] Call Trace: [ 26.658020][ T1641] [ 26.658021][ T1641] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.658028][ T1641] __might_resched.cold (kernel/sched/core.c:9234) [ 26.658033][ T1641] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.658039][ T1641] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.658044][ T1641] __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)) [ 26.658046][ T1641] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.658052][ T1641] ? 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) [ 26.658055][ T1641] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.658059][ T1641] put_chars (drivers/char/virtio_console.c:1176) [ 26.658061][ T1641] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.658063][ T1641] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.658066][ T1641] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.658072][ T1641] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.658079][ T1641] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.658082][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658084][ T1641] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.658088][ T1641] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.658092][ T1641] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.658094][ T1641] ? 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)) [ 26.658097][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658099][ T1641] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.658102][ T1641] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.658107][ T1641] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.658108][ T1641] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.658114][ T1641] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.658117][ T1641] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.658119][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658120][ T1641] ? 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) [ 26.658124][ T1641] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.658126][ T1641] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.658129][ T1641] vprintk_emit (kernel/printk/printk.c:2479) [ 26.658132][ T1641] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.658134][ T1641] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.658136][ T1641] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.658140][ T1641] _printk (kernel/printk/printk.c:2504) [ 26.658144][ T1641] ? snapshot_read.cold (user.c:?) [ 26.658149][ T1641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.658153][ T1641] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 26.658157][ T1641] br_init_port (net/bridge/br_stp_if.c:39) [ 26.658160][ T1641] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 26.658162][ T1641] br_device_event (net/bridge/br.c:120) [ 26.658165][ T1641] ? packet_sendmsg_spkt (af_packet.c:?) [ 26.658166][ T1641] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 26.658173][ T1641] notifier_call_chain (kernel/notifier.c:85) [ 26.658179][ T1641] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 26.658184][ T1641] ? netif_change_name (net/core/dev.c:1517) [ 26.658188][ T1641] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 26.658190][ T1641] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 26.658193][ T1641] ? __kernel_text_address (kernel/extable.c:79) [ 26.658195][ T1641] ? write_profile (profile.c:?) [ 26.658199][ T1641] netif_change_flags (net/core/dev.c:9882) [ 26.658203][ T1641] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 26.658206][ T1641] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.658209][ T1641] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.658210][ T1641] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.658212][ T1641] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.658215][ T1641] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.658217][ T1641] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.658219][ T1641] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.658221][ T1641] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.658224][ T1641] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.658225][ T1641] ? kasan_save_track (mm/kasan/common.c:78) [ 26.658226][ T1641] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 26.658229][ T1641] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.658230][ T1641] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 26.658234][ T1641] ? ___sys_sendmsg (net/socket.c:2758) [ 26.658237][ T1641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.658239][ T1641] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.658242][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658244][ T1641] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.658245][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658246][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658248][ T1641] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.658250][ T1641] ? __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) [ 26.658253][ T1641] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.658255][ T1641] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.658258][ T1641] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.658262][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658264][ T1641] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.658269][ T1641] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.658275][ T1641] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.658277][ T1641] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.658281][ T1641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.658283][ T1641] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.658285][ T1641] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.658287][ T1641] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.658291][ T1641] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.658293][ T1641] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.658296][ T1641] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.658297][ T1641] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.658302][ T1641] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.658304][ T1641] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.658307][ T1641] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.658309][ T1641] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.658312][ T1641] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.658318][ T1641] ? 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)) [ 26.658326][ T1641] ? 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)) [ 26.658331][ T1641] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.658335][ T1641] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.658337][ T1641] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.658342][ T1641] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.658345][ T1641] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.658349][ T1641] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.658351][ T1641] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.658356][ T1641] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.658359][ T1641] ____sys_sendmsg (net/socket.c:2713) [ 26.658362][ T1641] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.658364][ T1641] ? sock_write_iter (net/socket.c:1269) [ 26.658365][ T1641] ? move_addr_to_kernel (net/socket.c:258) [ 26.658373][ T1641] ___sys_sendmsg (net/socket.c:2767) [ 26.658375][ T1641] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.658391][ T1641] __sys_sendmsg (net/socket.c:2799) [ 26.658394][ T1641] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.658400][ T1641] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.658403][ T1641] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.658406][ T1641] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.658409][ T1641] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.658412][ T1641] RIP: 0033:0x7f81adbe954e [ 26.658414][ T1641] 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 [ 26.658416][ T1641] RSP: 002b:00007ffd2e92ebd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.658418][ T1641] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f81adbe954e [ 26.658420][ T1641] RDX: 0000000000000000 RSI: 00007ffd2e92ec80 RDI: 0000000000000005 [ 26.658421][ T1641] RBP: 00007ffd2e92ebe0 R08: 0000000000000000 R09: 0000000000000000 [ 26.658421][ T1641] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131d9 [ 26.658422][ T1641] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd2e92f340 | [ 28.147119][ T1764] softirqs last disabled at (16750): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 28.147121][ T1764] Preemption disabled at: | [ 28.147122][ T1764] 0x0 | [ 28.147132][ T1764] Tainted: [W]=WARN [ 28.147133][ T1764] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.147135][ T1764] Call Trace: [ 28.147136][ T1764] [ 28.147138][ T1764] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.147144][ T1764] __might_resched.cold (kernel/sched/core.c:9234) [ 28.147149][ T1764] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.147153][ T1764] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.147157][ T1764] __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)) [ 28.147159][ T1764] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.147165][ T1764] ? 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) [ 28.147168][ T1764] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.147172][ T1764] put_chars (drivers/char/virtio_console.c:1176) [ 28.147174][ T1764] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.147180][ T1764] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.147188][ T1764] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.147191][ T1764] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.147196][ T1764] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.147200][ T1764] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.147201][ T1764] ? 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)) [ 28.147205][ T1764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.147207][ T1764] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.147211][ T1764] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.147215][ T1764] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.147217][ T1764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.147223][ T1764] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.147226][ T1764] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.147227][ T1764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.147229][ T1764] ? 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) [ 28.147233][ T1764] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.147235][ T1764] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.147237][ T1764] vprintk_emit (kernel/printk/printk.c:2479) [ 28.147241][ T1764] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.147243][ T1764] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.147245][ T1764] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.147250][ T1764] _printk (kernel/printk/printk.c:2504) [ 28.147253][ T1764] ? snapshot_read.cold (user.c:?) [ 28.147261][ T1764] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 28.147265][ T1764] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 28.147269][ T1764] br_device_event (net/bridge/br.c:111) [ 28.147272][ T1764] ? packet_sendmsg_spkt (af_packet.c:?) [ 28.147277][ T1764] notifier_call_chain (kernel/notifier.c:85) [ 28.147283][ T1764] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 28.147288][ T1764] ? netif_change_name (net/core/dev.c:1517) [ 28.147292][ T1764] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 28.147295][ T1764] ? __kernel_text_address (kernel/extable.c:79) [ 28.147297][ T1764] ? write_profile (profile.c:?) [ 28.147302][ T1764] netif_change_flags (net/core/dev.c:9882) [ 28.147306][ T1764] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 28.147309][ T1764] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.147312][ T1764] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.147313][ T1764] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.147315][ T1764] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.147318][ T1764] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.147320][ T1764] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.147322][ T1764] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.147324][ T1764] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.147332][ T1764] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.147333][ T1764] ? kasan_save_track (mm/kasan/common.c:78) [ 28.147334][ T1764] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.147336][ T1764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.147338][ T1764] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.147342][ T1764] ? ___sys_sendmsg (net/socket.c:2758) [ 28.147345][ T1764] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.147347][ T1764] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.147350][ T1764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.147352][ T1764] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.147353][ T1764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.147355][ T1764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.147356][ T1764] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.147358][ T1764] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 28.147361][ T1764] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.147363][ T1764] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.147366][ T1764] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.147370][ T1764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.147372][ T1764] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.147377][ T1764] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.147383][ T1764] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.147385][ T1764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.147389][ T1764] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.147391][ T1764] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.147393][ T1764] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.147395][ T1764] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.147399][ T1764] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.147401][ T1764] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.147404][ T1764] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.147405][ T1764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.147410][ T1764] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.147412][ T1764] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.147415][ T1764] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.147418][ T1764] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.147421][ T1764] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.147427][ T1764] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 28.147429][ T1764] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 28.147434][ T1764] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.147438][ T1764] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.147440][ T1764] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.147445][ T1764] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.147449][ T1764] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.147452][ T1764] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.147454][ T1764] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.147459][ T1764] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.147462][ T1764] ____sys_sendmsg (net/socket.c:2713) [ 28.147464][ T1764] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.147466][ T1764] ? sock_write_iter (net/socket.c:1269) [ 28.147468][ T1764] ? move_addr_to_kernel (net/socket.c:258) [ 28.147475][ T1764] ___sys_sendmsg (net/socket.c:2767) [ 28.147478][ T1764] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.147494][ T1764] __sys_sendmsg (net/socket.c:2799) [ 28.147497][ T1764] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.147503][ T1764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.147506][ T1764] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.147509][ T1764] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.147512][ T1764] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.147514][ T1764] RIP: 0033:0x7f03b37ba54e [ 28.147516][ T1764] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 28.147518][ T1764] RSP: 002b:00007ffd50c2c700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.147521][ T1764] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f03b37ba54e [ 28.147522][ T1764] RDX: 0000000000000000 RSI: 00007ffd50c2c7b0 RDI: 0000000000000005 [ 28.147523][ T1764] RBP: 00007ffd50c2c710 R08: 0000000000000000 R09: 0000000000000000 [ 28.147524][ T1764] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131da [ 28.147525][ T1764] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd50c2ce70 | [ 29.447348][ T39] softirqs last disabled at (303596): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 29.447350][ T39] Preemption disabled at: | [ 29.447351][ T39] 0x0 | [ 29.447361][ T39] Tainted: [W]=WARN [ 29.447362][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.447364][ T39] Workqueue: events_unbound linkwatch_event [ 29.447368][ T39] Call Trace: [ 29.447369][ T39] [ 29.447371][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.447377][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 29.447382][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.447386][ 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) [ 29.447391][ 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)) [ 29.447392][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.447399][ 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) [ 29.447402][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.447406][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 29.447408][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.447411][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.447414][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.447417][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.447421][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.447425][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 29.447427][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.447428][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.447433][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.447434][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.447439][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.447443][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.447447][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.447449][ 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)) [ 29.447452][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.447454][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.447458][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.447463][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.447465][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.447470][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.447473][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.447475][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.447477][ 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) [ 29.447480][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.447482][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.447485][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 29.447488][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.447490][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.447492][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.447496][ T39] _printk (kernel/printk/printk.c:2504) [ 29.447500][ T39] ? snapshot_read.cold (user.c:?) [ 29.447505][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.447509][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 29.447513][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 29.447516][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 29.447518][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 29.447522][ T39] br_device_event (net/bridge/br.c:101) [ 29.447525][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 29.447527][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 29.447534][ T39] notifier_call_chain (kernel/notifier.c:85) [ 29.447539][ T39] netif_state_change (net/core/dev.c:1625) [ 29.447544][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 29.447549][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 29.447551][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 29.447554][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 29.447557][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.447561][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 29.447563][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 29.447567][ T39] process_one_work (kernel/workqueue.c:3387) [ 29.447573][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 29.447576][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.447584][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 29.447591][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 29.447593][ T39] kthread (kernel/kthread.c:436) [ 29.447595][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 29.447599][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 29.447602][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 29.447606][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 29.447609][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 29.447613][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 29.447616][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 30.464551][ T39] softirqs last disabled at (315034): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 30.464554][ T39] Preemption disabled at: | [ 30.464554][ T39] 0x0 | [ 30.464565][ T39] Tainted: [W]=WARN [ 30.464566][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.464568][ T39] Workqueue: events_unbound linkwatch_event [ 30.464571][ T39] Call Trace: [ 30.464572][ T39] [ 30.464574][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.464581][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 30.464585][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.464589][ 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) [ 30.464594][ 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)) [ 30.464596][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.464603][ 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) [ 30.464606][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.464609][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 30.464612][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.464615][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.464618][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.464621][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.464625][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.464629][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 30.464631][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.464633][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.464637][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.464639][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.464644][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.464648][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.464652][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.464654][ 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)) [ 30.464657][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.464659][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.464663][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.464667][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.464669][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.464675][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.464677][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.464679][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.464681][ 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) [ 30.464685][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.464687][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.464691][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 30.464696][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.464698][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.464700][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.464704][ T39] _printk (kernel/printk/printk.c:2504) [ 30.464708][ T39] ? snapshot_read.cold (user.c:?) [ 30.464713][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.464717][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 30.464722][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 30.464724][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 30.464726][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 30.464730][ T39] br_device_event (net/bridge/br.c:101) [ 30.464734][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 30.464735][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 30.464742][ T39] notifier_call_chain (kernel/notifier.c:85) [ 30.464748][ T39] netif_state_change (net/core/dev.c:1625) [ 30.464753][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 30.464758][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 30.464760][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 30.464763][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 30.464766][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.464770][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 30.464772][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 30.464776][ T39] process_one_work (kernel/workqueue.c:3387) [ 30.464782][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 30.464786][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.464793][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 30.464801][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 30.464803][ T39] kthread (kernel/kthread.c:436) [ 30.464805][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 30.464808][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 30.464811][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 30.464816][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 30.464819][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 30.464823][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 30.464825][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 31.875187][ T2104] softirqs last disabled at (15348): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 31.875189][ T2104] Preemption disabled at: | [ 31.875190][ T2104] 0x0 | [ 31.875200][ T2104] Tainted: [W]=WARN [ 31.875201][ T2104] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.875203][ T2104] Call Trace: [ 31.875204][ T2104] [ 31.875206][ T2104] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.875212][ T2104] __might_resched.cold (kernel/sched/core.c:9234) [ 31.875217][ T2104] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.875221][ T2104] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.875225][ T2104] __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)) [ 31.875227][ T2104] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.875234][ T2104] ? 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) [ 31.875237][ T2104] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.875240][ T2104] put_chars (drivers/char/virtio_console.c:1176) [ 31.875243][ T2104] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.875244][ T2104] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.875248][ T2104] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.875253][ T2104] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.875261][ T2104] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.875263][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875265][ T2104] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.875270][ T2104] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.875273][ T2104] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.875275][ T2104] ? 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)) [ 31.875278][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875280][ T2104] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.875284][ T2104] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.875288][ T2104] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.875290][ T2104] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.875295][ T2104] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.875298][ T2104] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.875300][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875302][ T2104] ? 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) [ 31.875305][ T2104] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.875307][ T2104] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.875310][ T2104] vprintk_emit (kernel/printk/printk.c:2479) [ 31.875313][ T2104] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.875315][ T2104] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.875317][ T2104] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.875322][ T2104] _printk (kernel/printk/printk.c:2504) [ 31.875325][ T2104] ? snapshot_read.cold (user.c:?) [ 31.875330][ T2104] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.875334][ T2104] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 31.875344][ T2104] br_init_port (net/bridge/br_stp_if.c:39) [ 31.875347][ T2104] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 31.875349][ T2104] br_device_event (net/bridge/br.c:120) [ 31.875352][ T2104] ? packet_sendmsg_spkt (af_packet.c:?) [ 31.875354][ T2104] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 31.875360][ T2104] notifier_call_chain (kernel/notifier.c:85) [ 31.875366][ T2104] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 31.875371][ T2104] ? netif_change_name (net/core/dev.c:1517) [ 31.875375][ T2104] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 31.875377][ T2104] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 31.875380][ T2104] ? __kernel_text_address (kernel/extable.c:79) [ 31.875382][ T2104] ? write_profile (profile.c:?) [ 31.875387][ T2104] netif_change_flags (net/core/dev.c:9882) [ 31.875391][ T2104] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 31.875394][ T2104] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 31.875396][ T2104] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 31.875397][ T2104] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 31.875399][ T2104] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 31.875403][ T2104] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.875405][ T2104] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.875406][ T2104] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.875409][ T2104] ? kasan_save_stack (mm/kasan/common.c:58) [ 31.875411][ T2104] ? kasan_save_stack (mm/kasan/common.c:57) [ 31.875412][ T2104] ? kasan_save_track (mm/kasan/common.c:78) [ 31.875414][ T2104] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 31.875416][ T2104] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.875418][ T2104] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 31.875421][ T2104] ? ___sys_sendmsg (net/socket.c:2758) [ 31.875425][ T2104] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.875426][ T2104] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.875429][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875431][ T2104] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.875432][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875433][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875435][ T2104] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 31.875437][ T2104] ? __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) [ 31.875440][ T2104] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 31.875442][ T2104] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.875445][ T2104] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 31.875449][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875451][ T2104] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 31.875456][ T2104] rtnl_newlink (net/core/rtnetlink.c:4215) [ 31.875462][ T2104] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.875464][ T2104] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.875468][ T2104] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.875470][ T2104] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.875472][ T2104] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.875474][ T2104] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.875478][ T2104] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.875480][ T2104] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 31.875483][ T2104] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.875484][ T2104] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.875489][ T2104] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.875491][ T2104] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.875494][ T2104] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 31.875496][ T2104] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.875499][ T2104] ? netlink_ack (./include/linux/skbuff.h:2718) [ 31.875505][ T2104] ? 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)) [ 31.875507][ T2104] ? 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)) [ 31.875512][ T2104] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 31.875516][ T2104] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 31.875519][ T2104] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.875523][ T2104] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 31.875527][ T2104] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 31.875531][ T2104] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.875532][ T2104] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 31.875537][ T2104] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 31.875540][ T2104] ____sys_sendmsg (net/socket.c:2713) [ 31.875542][ T2104] ? copy_msghdr_from_user (net/socket.c:2650) [ 31.875545][ T2104] ? sock_write_iter (net/socket.c:1269) [ 31.875546][ T2104] ? move_addr_to_kernel (net/socket.c:258) [ 31.875554][ T2104] ___sys_sendmsg (net/socket.c:2767) [ 31.875556][ T2104] ? copy_msghdr_from_user (net/socket.c:2619) [ 31.875572][ T2104] __sys_sendmsg (net/socket.c:2799) [ 31.875575][ T2104] ? __sys_sendmsg_sock (net/socket.c:2780) [ 31.875581][ T2104] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.875584][ T2104] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.875587][ T2104] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.875590][ T2104] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.875592][ T2104] RIP: 0033:0x7ff0f7e1c54e [ 31.875595][ T2104] 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 [ 31.875596][ T2104] RSP: 002b:00007ffe68a98be0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 31.875599][ T2104] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff0f7e1c54e [ 31.875600][ T2104] RDX: 0000000000000000 RSI: 00007ffe68a98c90 RDI: 0000000000000005 [ 31.875601][ T2104] RBP: 00007ffe68a98bf0 R08: 0000000000000000 R09: 0000000000000000 [ 31.875602][ T2104] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131de [ 31.875603][ T2104] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe68a99350 | [ 33.533218][ T796] softirqs last disabled at (191664): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 33.533222][ T796] Preemption disabled at: | [ 33.533223][ T796] 0x0 | [ 33.533236][ T796] Tainted: [W]=WARN [ 33.533237][ T796] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.533240][ T796] Workqueue: events_unbound linkwatch_event [ 33.533244][ T796] Call Trace: [ 33.533247][ T796] [ 33.533249][ T796] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.533257][ T796] __might_resched.cold (kernel/sched/core.c:9234) [ 33.533263][ T796] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.533269][ T796] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 33.533275][ T796] __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)) [ 33.533279][ T796] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.533288][ T796] ? 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) [ 33.533292][ T796] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.533298][ T796] put_chars (drivers/char/virtio_console.c:1176) [ 33.533302][ T796] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.533307][ T796] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.533311][ T796] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.533315][ T796] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.533322][ T796] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.533327][ T796] ? mark_usage (kernel/locking/lockdep.c:4690) [ 33.533330][ T796] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.533333][ T796] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.533340][ T796] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.533343][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.533356][ T796] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.533363][ T796] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.533370][ T796] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.533372][ T796] ? 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)) [ 33.533378][ T796] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.533381][ T796] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.533388][ T796] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.533395][ T796] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.533398][ T796] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.533408][ T796] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.533412][ T796] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.533415][ T796] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.533418][ T796] ? 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) [ 33.533424][ T796] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.533427][ T796] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.533432][ T796] vprintk_emit (kernel/printk/printk.c:2479) [ 33.533437][ T796] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.533441][ T796] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.533444][ T796] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.533451][ T796] _printk (kernel/printk/printk.c:2504) [ 33.533456][ T796] ? snapshot_read.cold (user.c:?) [ 33.533465][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.533471][ T796] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 33.533478][ T796] br_init_port (net/bridge/br_stp_if.c:39) [ 33.533482][ T796] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 33.533485][ T796] br_port_carrier_check (net/bridge/br_if.c:90) [ 33.533491][ T796] br_device_event (net/bridge/br.c:101) [ 33.533496][ T796] ? packet_sendmsg_spkt (af_packet.c:?) [ 33.533499][ T796] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 33.533510][ T796] notifier_call_chain (kernel/notifier.c:85) [ 33.533519][ T796] netif_state_change (net/core/dev.c:1625) [ 33.533526][ T796] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 33.533534][ T796] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 33.533538][ T796] __linkwatch_run_queue (net/core/link_watch.c:240) [ 33.533543][ T796] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 33.533547][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.533555][ T796] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 33.533558][ T796] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 33.533564][ T796] process_one_work (kernel/workqueue.c:3387) [ 33.533576][ T796] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 33.533581][ T796] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.533595][ T796] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 33.533602][ T796] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.533605][ T796] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 33.533610][ T796] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.533615][ T796] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.533618][ T796] kthread (kernel/kthread.c:436) [ 33.533621][ T796] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 33.533625][ T796] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.533630][ T796] ret_from_fork (arch/x86/kernel/process.c:158) [ 33.533636][ T796] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 33.533642][ T796] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 33.533647][ T796] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.533651][ T796] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 34.542505][ T39] softirqs last disabled at (395504): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 34.542507][ T39] Preemption disabled at: | [ 34.542508][ T39] 0x0 | [ 34.542518][ T39] Tainted: [W]=WARN [ 34.542519][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.542521][ T39] Workqueue: events_unbound linkwatch_event [ 34.542524][ T39] Call Trace: [ 34.542525][ T39] [ 34.542527][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.542534][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 34.542538][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.542542][ 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) [ 34.542547][ 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)) [ 34.542549][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.542555][ 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) [ 34.542558][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.542562][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 34.542564][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.542567][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.542570][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.542573][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.542577][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.542581][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 34.542583][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.542585][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.542589][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.542591][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.542595][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.542599][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.542603][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.542605][ 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)) [ 34.542608][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.542610][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.542614][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.542619][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.542620][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.542626][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.542629][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.542631][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.542632][ 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) [ 34.542636][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.542638][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.542641][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 34.542644][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.542646][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.542648][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.542652][ T39] _printk (kernel/printk/printk.c:2504) [ 34.542655][ T39] ? snapshot_read.cold (user.c:?) [ 34.542661][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.542665][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.542669][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 34.542671][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 34.542673][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 34.542677][ T39] br_device_event (net/bridge/br.c:101) [ 34.542681][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 34.542682][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 34.542690][ T39] notifier_call_chain (kernel/notifier.c:85) [ 34.542696][ T39] netif_state_change (net/core/dev.c:1625) [ 34.542701][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.542706][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 34.542708][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 34.542711][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.542713][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.542718][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 34.542720][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 34.542723][ T39] process_one_work (kernel/workqueue.c:3387) [ 34.542730][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 34.542733][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.542741][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 34.542748][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 34.542750][ T39] kthread (kernel/kthread.c:436) [ 34.542752][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 34.542756][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.542758][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 34.542763][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 34.542766][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 34.542770][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.542772][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 36.004434][ T2419] softirqs last disabled at (15096): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 36.004438][ T2419] Preemption disabled at: | [ 36.004439][ T2419] 0x0 | [ 36.004452][ T2419] Tainted: [W]=WARN [ 36.004453][ T2419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 36.004456][ T2419] Call Trace: [ 36.004458][ T2419] [ 36.004460][ T2419] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 36.004468][ T2419] __might_resched.cold (kernel/sched/core.c:9234) [ 36.004475][ T2419] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 36.004481][ T2419] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 36.004488][ T2419] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 36.004491][ T2419] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.004501][ T2419] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 36.004505][ T2419] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.004511][ T2419] put_chars (drivers/char/virtio_console.c:1176) [ 36.004515][ T2419] ? __send_to_port (drivers/char/virtio_console.c:654) [ 36.004517][ T2419] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.004522][ T2419] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 36.004532][ T2419] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 36.004544][ T2419] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 36.004548][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.004551][ T2419] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.004558][ T2419] console_emit_next_record (kernel/printk/printk.c:3183) [ 36.004565][ T2419] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 36.004567][ T2419] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 36.004572][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.004575][ T2419] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.004582][ T2419] console_flush_one_record (kernel/printk/printk.c:3268) [ 36.004589][ T2419] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 36.004592][ T2419] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.004601][ T2419] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 36.004606][ T2419] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 36.004608][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.004611][ T2419] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 36.004618][ T2419] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 36.004621][ T2419] ? vprintk_emit (kernel/printk/printk.c:2478) [ 36.004626][ T2419] vprintk_emit (kernel/printk/printk.c:2479) [ 36.004632][ T2419] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 36.004635][ T2419] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.004639][ T2419] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.004646][ T2419] _printk (kernel/printk/printk.c:2504) [ 36.004652][ T2419] ? snapshot_read.cold (user.c:?) [ 36.004661][ T2419] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.004668][ T2419] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 36.004675][ T2419] br_init_port (net/bridge/br_stp_if.c:39) [ 36.004680][ T2419] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 36.004683][ T2419] br_device_event (net/bridge/br.c:120) [ 36.004688][ T2419] ? packet_sendmsg_spkt (af_packet.c:?) [ 36.004690][ T2419] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 36.004702][ T2419] notifier_call_chain (kernel/notifier.c:85) [ 36.004712][ T2419] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 36.004719][ T2419] ? netif_change_name (net/core/dev.c:1517) [ 36.004726][ T2419] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 36.004730][ T2419] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 36.004734][ T2419] ? __kernel_text_address (kernel/extable.c:79) [ 36.004737][ T2419] ? write_profile (profile.c:?) [ 36.004745][ T2419] netif_change_flags (net/core/dev.c:9882) [ 36.004751][ T2419] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 36.004758][ T2419] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 36.004761][ T2419] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 36.004763][ T2419] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 36.004766][ T2419] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 36.004771][ T2419] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.004775][ T2419] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.004778][ T2419] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 36.004782][ T2419] ? kasan_save_stack (mm/kasan/common.c:58) [ 36.004785][ T2419] ? kasan_save_stack (mm/kasan/common.c:57) [ 36.004787][ T2419] ? kasan_save_track (mm/kasan/common.c:78) [ 36.004789][ T2419] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 36.004794][ T2419] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.004797][ T2419] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 36.004801][ T2419] ? ___sys_sendmsg (net/socket.c:2758) [ 36.004808][ T2419] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.004811][ T2419] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 36.004815][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.004818][ T2419] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.004821][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.004823][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.004826][ T2419] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 36.004830][ T2419] ? __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) [ 36.004833][ T2419] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 36.004837][ T2419] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 36.004843][ T2419] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 36.004850][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.004854][ T2419] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 36.004864][ T2419] rtnl_newlink (net/core/rtnetlink.c:4215) [ 36.004874][ T2419] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 36.004877][ T2419] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.004885][ T2419] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.004888][ T2419] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 36.004892][ T2419] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 36.004895][ T2419] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 36.004902][ T2419] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 36.004906][ T2419] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 36.004911][ T2419] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 36.004913][ T2419] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.004922][ T2419] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.004925][ T2419] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 36.004931][ T2419] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 36.004934][ T2419] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 36.004939][ T2419] ? netlink_ack (./include/linux/skbuff.h:2718) [ 36.004951][ T2419] ? 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)) [ 36.004954][ T2419] ? 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)) [ 36.004962][ T2419] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 36.004969][ T2419] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 36.004974][ T2419] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 36.004982][ T2419] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 36.004989][ T2419] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 36.004995][ T2419] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 36.004998][ T2419] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 36.005007][ T2419] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 36.005011][ T2419] ____sys_sendmsg (net/socket.c:2713) [ 36.005015][ T2419] ? copy_msghdr_from_user (net/socket.c:2650) [ 36.005019][ T2419] ? sock_write_iter (net/socket.c:1269) [ 36.005021][ T2419] ? move_addr_to_kernel (net/socket.c:258) [ 36.005038][ T2419] ___sys_sendmsg (net/socket.c:2767) [ 36.005043][ T2419] ? copy_msghdr_from_user (net/socket.c:2619) [ 36.005074][ T2419] __sys_sendmsg (net/socket.c:2799) [ 36.005079][ T2419] ? __sys_sendmsg_sock (net/socket.c:2780) [ 36.005090][ T2419] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.005096][ T2419] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 36.005101][ T2419] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 36.005105][ T2419] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 36.005109][ T2419] RIP: 0033:0x7f7740b3b54e [ 36.005112][ T2419] 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 [ 36.005115][ T2419] RSP: 002b:00007ffcea335020 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 36.005118][ T2419] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7740b3b54e [ 36.005120][ T2419] RDX: 0000000000000000 RSI: 00007ffcea3350d0 RDI: 0000000000000005 [ 36.005122][ T2419] RBP: 00007ffcea335030 R08: 0000000000000000 R09: 0000000000000000 [ 36.005123][ T2419] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131e2 [ 36.005124][ T2419] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcea335790 | [ 37.078201][ T2494] softirqs last disabled at (13650): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 37.078203][ T2494] Preemption disabled at: | [ 37.078204][ T2494] 0x0 | [ 37.078214][ T2494] Tainted: [W]=WARN [ 37.078215][ T2494] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.078216][ T2494] Call Trace: [ 37.078218][ T2494] [ 37.078219][ T2494] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 37.078226][ T2494] __might_resched.cold (kernel/sched/core.c:9234) [ 37.078230][ T2494] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 37.078234][ T2494] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 37.078238][ T2494] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 37.078240][ T2494] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.078247][ T2494] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 37.078249][ T2494] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.078253][ T2494] put_chars (drivers/char/virtio_console.c:1176) [ 37.078256][ T2494] ? __send_to_port (drivers/char/virtio_console.c:654) [ 37.078262][ T2494] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 37.078269][ T2494] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 37.078273][ T2494] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.078277][ T2494] console_emit_next_record (kernel/printk/printk.c:3183) [ 37.078281][ T2494] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 37.078283][ T2494] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 37.078286][ T2494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.078289][ T2494] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.078293][ T2494] console_flush_one_record (kernel/printk/printk.c:3268) [ 37.078297][ T2494] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 37.078299][ T2494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.078304][ T2494] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 37.078307][ T2494] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 37.078309][ T2494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.078310][ T2494] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 37.078314][ T2494] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 37.078316][ T2494] ? vprintk_emit (kernel/printk/printk.c:2478) [ 37.078318][ T2494] vprintk_emit (kernel/printk/printk.c:2479) [ 37.078322][ T2494] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 37.078323][ T2494] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 37.078325][ T2494] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.078327][ T2494] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.078331][ T2494] _printk (kernel/printk/printk.c:2504) [ 37.078335][ T2494] ? snapshot_read.cold (user.c:?) [ 37.078342][ T2494] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 37.078347][ T2494] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 37.078350][ T2494] br_device_event (net/bridge/br.c:111) [ 37.078353][ T2494] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 37.078362][ T2494] ? packet_sendmsg_spkt (af_packet.c:?) [ 37.078368][ T2494] notifier_call_chain (kernel/notifier.c:85) [ 37.078373][ T2494] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 37.078378][ T2494] ? netif_change_name (net/core/dev.c:1517) [ 37.078382][ T2494] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 37.078385][ T2494] ? __kernel_text_address (kernel/extable.c:79) [ 37.078388][ T2494] ? write_profile (profile.c:?) [ 37.078392][ T2494] netif_change_flags (net/core/dev.c:9882) [ 37.078396][ T2494] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 37.078400][ T2494] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 37.078402][ T2494] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 37.078403][ T2494] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 37.078405][ T2494] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 37.078408][ T2494] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.078410][ T2494] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.078412][ T2494] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 37.078414][ T2494] ? kasan_save_stack (mm/kasan/common.c:58) [ 37.078416][ T2494] ? kasan_save_stack (mm/kasan/common.c:57) [ 37.078418][ T2494] ? kasan_save_track (mm/kasan/common.c:78) [ 37.078419][ T2494] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 37.078421][ T2494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.078423][ T2494] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 37.078426][ T2494] ? ___sys_sendmsg (net/socket.c:2758) [ 37.078430][ T2494] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.078432][ T2494] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 37.078434][ T2494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.078436][ T2494] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.078437][ T2494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.078438][ T2494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.078440][ T2494] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 37.078442][ T2494] ? __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) [ 37.078444][ T2494] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 37.078446][ T2494] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 37.078449][ T2494] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 37.078452][ T2494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.078455][ T2494] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 37.078460][ T2494] rtnl_newlink (net/core/rtnetlink.c:4215) [ 37.078465][ T2494] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.078467][ T2494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.078471][ T2494] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.078473][ T2494] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.078476][ T2494] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.078477][ T2494] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 37.078481][ T2494] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.078483][ T2494] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 37.078486][ T2494] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 37.078488][ T2494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.078492][ T2494] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.078494][ T2494] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.078498][ T2494] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 37.078501][ T2494] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 37.078504][ T2494] ? netlink_ack (./include/linux/skbuff.h:2718) [ 37.078510][ T2494] ? 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)) [ 37.078512][ T2494] ? 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)) [ 37.078517][ T2494] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 37.078520][ T2494] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 37.078523][ T2494] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.078527][ T2494] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 37.078531][ T2494] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 37.078535][ T2494] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 37.078537][ T2494] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 37.078542][ T2494] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 37.078545][ T2494] ____sys_sendmsg (net/socket.c:2713) [ 37.078547][ T2494] ? copy_msghdr_from_user (net/socket.c:2650) [ 37.078549][ T2494] ? sock_write_iter (net/socket.c:1269) [ 37.078551][ T2494] ? move_addr_to_kernel (net/socket.c:258) [ 37.078558][ T2494] ___sys_sendmsg (net/socket.c:2767) [ 37.078561][ T2494] ? copy_msghdr_from_user (net/socket.c:2619) [ 37.078577][ T2494] __sys_sendmsg (net/socket.c:2799) [ 37.078579][ T2494] ? __sys_sendmsg_sock (net/socket.c:2780) [ 37.078585][ T2494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.078588][ T2494] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 37.078592][ T2494] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 37.078594][ T2494] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 37.078596][ T2494] RIP: 0033:0x7f108acad54e [ 37.078599][ T2494] 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 [ 37.078600][ T2494] RSP: 002b:00007ffef2343500 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 37.078603][ T2494] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f108acad54e [ 37.078604][ T2494] RDX: 0000000000000000 RSI: 00007ffef23435b0 RDI: 0000000000000005 [ 37.078605][ T2494] RBP: 00007ffef2343510 R08: 0000000000000000 R09: 0000000000000000 [ 37.078606][ T2494] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131e3 [ 37.078607][ T2494] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffef2343c70 | [ 38.098725][ T2571] softirqs last disabled at (13600): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 38.098727][ T2571] Preemption disabled at: | [ 38.098728][ T2571] 0x0 | [ 38.098738][ T2571] Tainted: [W]=WARN [ 38.098739][ T2571] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.098741][ T2571] Call Trace: [ 38.098743][ T2571] [ 38.098744][ T2571] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.098751][ T2571] __might_resched.cold (kernel/sched/core.c:9234) [ 38.098755][ T2571] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.098760][ T2571] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 38.098764][ T2571] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 38.098766][ T2571] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.098773][ T2571] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 38.098776][ T2571] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.098780][ T2571] put_chars (drivers/char/virtio_console.c:1176) [ 38.098783][ T2571] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.098789][ T2571] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.098797][ T2571] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.098800][ T2571] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.098805][ T2571] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.098809][ T2571] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.098811][ T2571] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 38.098815][ T2571] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.098817][ T2571] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.098821][ T2571] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.098826][ T2571] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.098828][ T2571] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.098833][ T2571] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.098836][ T2571] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.098838][ T2571] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.098840][ T2571] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 38.098844][ T2571] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.098845][ T2571] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.098848][ T2571] vprintk_emit (kernel/printk/printk.c:2479) [ 38.098852][ T2571] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.098853][ T2571] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 38.098856][ T2571] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.098858][ T2571] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.098862][ T2571] _printk (kernel/printk/printk.c:2504) [ 38.098866][ T2571] ? snapshot_read.cold (user.c:?) [ 38.098874][ T2571] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 38.098879][ T2571] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 38.098882][ T2571] br_device_event (net/bridge/br.c:111) [ 38.098885][ T2571] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 38.098889][ T2571] ? packet_sendmsg_spkt (af_packet.c:?) [ 38.098895][ T2571] notifier_call_chain (kernel/notifier.c:85) [ 38.098901][ T2571] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 38.098906][ T2571] ? netif_change_name (net/core/dev.c:1517) [ 38.098910][ T2571] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 38.098913][ T2571] ? __kernel_text_address (kernel/extable.c:79) [ 38.098916][ T2571] ? write_profile (profile.c:?) [ 38.098921][ T2571] netif_change_flags (net/core/dev.c:9882) [ 38.098925][ T2571] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 38.098928][ T2571] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 38.098930][ T2571] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 38.098932][ T2571] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 38.098934][ T2571] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 38.098937][ T2571] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.098939][ T2571] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.098941][ T2571] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.098944][ T2571] ? kasan_save_stack (mm/kasan/common.c:58) [ 38.098946][ T2571] ? kasan_save_stack (mm/kasan/common.c:57) [ 38.098948][ T2571] ? kasan_save_track (mm/kasan/common.c:78) [ 38.098949][ T2571] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 38.098952][ T2571] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.098954][ T2571] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 38.098957][ T2571] ? ___sys_sendmsg (net/socket.c:2758) [ 38.098961][ T2571] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.098963][ T2571] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 38.098966][ T2571] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.098968][ T2571] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.098969][ T2571] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.098970][ T2571] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.098972][ T2571] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 38.098974][ T2571] ? __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) [ 38.098976][ T2571] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 38.098978][ T2571] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 38.098981][ T2571] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 38.098985][ T2571] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.098987][ T2571] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 38.098993][ T2571] rtnl_newlink (net/core/rtnetlink.c:4215) [ 38.098998][ T2571] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 38.099000][ T2571] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.099005][ T2571] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.099007][ T2571] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 38.099010][ T2571] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 38.099012][ T2571] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 38.099016][ T2571] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 38.099018][ T2571] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 38.099021][ T2571] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 38.099022][ T2571] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.099030][ T2571] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.099032][ T2571] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 38.099035][ T2571] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 38.099039][ T2571] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 38.099042][ T2571] ? netlink_ack (./include/linux/skbuff.h:2718) [ 38.099049][ T2571] ? 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)) [ 38.099051][ T2571] ? 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)) [ 38.099056][ T2571] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 38.099060][ T2571] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 38.099063][ T2571] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 38.099067][ T2571] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 38.099071][ T2571] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 38.099075][ T2571] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 38.099077][ T2571] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 38.099082][ T2571] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 38.099085][ T2571] ____sys_sendmsg (net/socket.c:2713) [ 38.099088][ T2571] ? copy_msghdr_from_user (net/socket.c:2650) [ 38.099090][ T2571] ? sock_write_iter (net/socket.c:1269) [ 38.099092][ T2571] ? move_addr_to_kernel (net/socket.c:258) [ 38.099100][ T2571] ___sys_sendmsg (net/socket.c:2767) [ 38.099102][ T2571] ? copy_msghdr_from_user (net/socket.c:2619) [ 38.099119][ T2571] __sys_sendmsg (net/socket.c:2799) [ 38.099122][ T2571] ? __sys_sendmsg_sock (net/socket.c:2780) [ 38.099129][ T2571] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.099132][ T2571] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 38.099135][ T2571] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 38.099138][ T2571] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 38.099140][ T2571] RIP: 0033:0x7f4b34a8e54e [ 38.099143][ T2571] 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 [ 38.099145][ T2571] RSP: 002b:00007ffc6f457b40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 38.099147][ T2571] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4b34a8e54e [ 38.099149][ T2571] RDX: 0000000000000000 RSI: 00007ffc6f457bf0 RDI: 0000000000000005 [ 38.099150][ T2571] RBP: 00007ffc6f457b50 R08: 0000000000000000 R09: 0000000000000000 [ 38.099150][ T2571] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131e4 [ 38.099151][ T2571] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6f4582b0 | [ 39.618059][ T2674] softirqs last disabled at (14584): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 39.618061][ T2674] Preemption disabled at: | [ 39.618062][ T2674] vprintk_emit (kernel/printk/printk.c:2471) | [ 39.618071][ T2674] Tainted: [W]=WARN [ 39.618072][ T2674] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 39.618074][ T2674] Call Trace: [ 39.618075][ T2674] [ 39.618077][ T2674] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 39.618082][ T2674] ? vprintk_emit (kernel/printk/printk.c:2471) [ 39.618084][ T2674] __might_resched.cold (kernel/sched/core.c:9234) [ 39.618088][ T2674] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 39.618092][ T2674] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 39.618096][ T2674] __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)) [ 39.618098][ T2674] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.618105][ T2674] ? 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) [ 39.618107][ T2674] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.618111][ T2674] put_chars (drivers/char/virtio_console.c:1176) [ 39.618114][ T2674] ? __send_to_port (drivers/char/virtio_console.c:654) [ 39.618117][ T2674] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.618122][ T2674] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 39.618129][ T2674] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 39.618132][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618135][ T2674] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.618139][ T2674] console_emit_next_record (kernel/printk/printk.c:3183) [ 39.618143][ T2674] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 39.618144][ T2674] ? 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)) [ 39.618148][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618149][ T2674] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.618153][ T2674] console_flush_one_record (kernel/printk/printk.c:3268) [ 39.618157][ T2674] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 39.618159][ T2674] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.618164][ T2674] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 39.618167][ T2674] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 39.618169][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618171][ T2674] ? 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) [ 39.618174][ T2674] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 39.618176][ T2674] ? vprintk_emit (kernel/printk/printk.c:2478) [ 39.618179][ T2674] vprintk_emit (kernel/printk/printk.c:2479) [ 39.618182][ T2674] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 39.618183][ T2674] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 39.618185][ T2674] ? netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 39.618188][ T2674] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 39.618189][ T2674] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 39.618191][ T2674] ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 39.618193][ T2674] ? ____sys_sendmsg (net/socket.c:2713) [ 39.618195][ T2674] ? ___sys_sendmsg (net/socket.c:2767) [ 39.618198][ T2674] _printk (kernel/printk/printk.c:2504) [ 39.618202][ T2674] ? snapshot_read.cold (user.c:?) [ 39.618206][ T2674] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 39.618210][ T2674] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 39.618213][ T2674] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 39.618216][ T2674] ? netdev_notice (net/core/dev.c:13194) [ 39.618220][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618222][ T2674] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 39.618225][ T2674] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 39.618227][ T2674] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 39.618229][ T2674] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 39.618233][ T2674] dev_set_allmulti (net/core/dev_api.c:315) [ 39.618237][ T2674] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 39.618244][ T2674] br_del_if (net/bridge/br_if.c:732) [ 39.618245][ T2674] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 39.618248][ T2674] do_set_master (net/core/rtnetlink.c:3055) [ 39.618252][ T2674] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 39.618255][ T2674] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 39.618259][ T2674] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 39.618260][ T2674] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 39.618263][ T2674] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 39.618266][ T2674] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 39.618268][ T2674] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 39.618270][ T2674] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.618272][ T2674] ? kasan_save_stack (mm/kasan/common.c:58) [ 39.618275][ T2674] ? kasan_save_stack (mm/kasan/common.c:57) [ 39.618276][ T2674] ? kasan_save_track (mm/kasan/common.c:78) [ 39.618277][ T2674] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 39.618280][ T2674] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.618281][ T2674] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 39.618284][ T2674] ? ___sys_sendmsg (net/socket.c:2758) [ 39.618287][ T2674] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.618289][ T2674] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 39.618291][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618293][ T2674] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.618295][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618296][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618297][ T2674] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 39.618300][ T2674] ? __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) [ 39.618302][ T2674] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 39.618304][ T2674] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 39.618308][ T2674] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 39.618309][ T2674] ? nla_get_range_signed (lib/nlattr.c:270) [ 39.618314][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618316][ T2674] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 39.618321][ T2674] rtnl_newlink (net/core/rtnetlink.c:4215) [ 39.618326][ T2674] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.618328][ T2674] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.618332][ T2674] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.618334][ T2674] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.618336][ T2674] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.618338][ T2674] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.618342][ T2674] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.618344][ T2674] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 39.618347][ T2674] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 39.618348][ T2674] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.618353][ T2674] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.618355][ T2674] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.618358][ T2674] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 39.618360][ T2674] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 39.618363][ T2674] ? netlink_ack (./include/linux/skbuff.h:2718) [ 39.618375][ T2674] ? 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)) [ 39.618377][ T2674] ? 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)) [ 39.618382][ T2674] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 39.618385][ T2674] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 39.618388][ T2674] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.618392][ T2674] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 39.618396][ T2674] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 39.618400][ T2674] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.618401][ T2674] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 39.618407][ T2674] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 39.618410][ T2674] ____sys_sendmsg (net/socket.c:2713) [ 39.618412][ T2674] ? copy_msghdr_from_user (net/socket.c:2650) [ 39.618414][ T2674] ? sock_write_iter (net/socket.c:1269) [ 39.618415][ T2674] ? move_addr_to_kernel (net/socket.c:258) [ 39.618423][ T2674] ___sys_sendmsg (net/socket.c:2767) [ 39.618425][ T2674] ? copy_msghdr_from_user (net/socket.c:2619) [ 39.618441][ T2674] __sys_sendmsg (net/socket.c:2799) [ 39.618444][ T2674] ? __sys_sendmsg_sock (net/socket.c:2780) [ 39.618450][ T2674] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.618453][ T2674] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 39.618456][ T2674] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 39.618459][ T2674] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 39.618461][ T2674] RIP: 0033:0x7f66fa87b54e [ 39.618465][ T2674] 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 [ 39.618467][ T2674] RSP: 002b:00007ffcdfda4ef0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 39.618469][ T2674] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f66fa87b54e [ 39.618471][ T2674] RDX: 0000000000000000 RSI: 00007ffcdfda4fa0 RDI: 0000000000000005 [ 39.618472][ T2674] RBP: 00007ffcdfda4f00 R08: 0000000000000000 R09: 0000000000000000 [ 39.618473][ T2674] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9131e5 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars