====================================== | [ 9.346974][ T197] softirqs last disabled at (23272): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 9.346976][ T197] Preemption disabled at: | [ 9.346977][ T197] 0x0 | [ 9.346986][ T197] Tainted: [W]=WARN [ 9.346987][ T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.346989][ T197] Call Trace: [ 9.346990][ T197] [ 9.346992][ T197] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.346998][ T197] __might_resched.cold (kernel/sched/core.c:9234) [ 9.347003][ T197] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.347006][ T197] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.347010][ T197] __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)) [ 9.347013][ T197] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.347019][ T197] ? 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) [ 9.347021][ T197] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.347025][ T197] put_chars (drivers/char/virtio_console.c:1176) [ 9.347027][ T197] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.347028][ T197] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.347032][ T197] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.347037][ T197] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.347045][ T197] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.347047][ T197] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.347049][ T197] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.347053][ T197] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.347057][ T197] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.347059][ T197] ? 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)) [ 9.347062][ T197] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.347064][ T197] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.347068][ T197] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.347072][ T197] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.347074][ T197] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.347079][ T197] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.347082][ T197] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.347083][ T197] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.347085][ T197] ? 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) [ 9.347089][ T197] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.347090][ T197] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.347093][ T197] vprintk_emit (kernel/printk/printk.c:2479) [ 9.347096][ T197] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.347099][ T197] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.347102][ T197] _printk (kernel/printk/printk.c:2504) [ 9.347106][ T197] ? snapshot_read.cold (user.c:?) [ 9.347109][ T197] ? 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) [ 9.347112][ T197] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.347115][ T197] ? 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) [ 9.347118][ T197] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.347122][ T197] ? exit_notify (kernel/exit.c:780) [ 9.347123][ T197] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.347126][ T197] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.347129][ T197] do_group_exit (kernel/exit.c:1151) [ 9.347132][ T197] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.347133][ T197] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.347136][ T197] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.347140][ T197] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.347142][ T197] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.347144][ T197] RIP: 0033:0x7f06cd6901b8 [ 9.347147][ T197] Code: Unable to access opcode bytes at 0x7f06cd69018e. Code starting with the faulting instruction =========================================== [ 9.347148][ T197] RSP: 002b:00007fffd1bc6e08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.347150][ T197] RAX: ffffffffffffffda RBX: 00007f06cd7c0f88 RCX: 00007f06cd6901b8 [ 9.347151][ T197] RDX: 00007f06cd3dafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.347152][ T197] RBP: 00007fffd1bc6e60 R08: 0000000000000000 R09: 0000000000008010 [ 9.347153][ T197] R10: 00007fffd1bc6c20 R11: 0000000000000246 R12: 0000000000000001 [ 9.347154][ T197] R13: 0000000000000000 R14: 00007f06cd7bf680 R15: 00007f06cd7c0fa0 | [ 11.217920][ T378] softirqs last disabled at (16012): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 11.217922][ T378] Preemption disabled at: | [ 11.217922][ T378] 0x0 | [ 11.217932][ T378] Tainted: [W]=WARN [ 11.217933][ T378] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.217935][ T378] Call Trace: [ 11.217936][ T378] [ 11.217938][ T378] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.217944][ T378] __might_resched.cold (kernel/sched/core.c:9234) [ 11.217949][ T378] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.217953][ T378] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.217957][ T378] __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)) [ 11.217959][ T378] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.217966][ T378] ? 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) [ 11.217969][ T378] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.217972][ T378] put_chars (drivers/char/virtio_console.c:1176) [ 11.217975][ T378] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.217981][ T378] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.217989][ T378] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.217992][ T378] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.217996][ T378] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.218000][ T378] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.218002][ T378] ? 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)) [ 11.218005][ T378] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.218008][ T378] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.218012][ T378] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.218016][ T378] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.218018][ T378] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.218023][ T378] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.218026][ T378] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.218028][ T378] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.218030][ T378] ? 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) [ 11.218033][ T378] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.218035][ T378] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.218038][ T378] vprintk_emit (kernel/printk/printk.c:2479) [ 11.218041][ T378] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.218042][ T378] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.218044][ T378] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.218046][ T378] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.218051][ T378] _printk (kernel/printk/printk.c:2504) [ 11.218055][ T378] ? snapshot_read.cold (user.c:?) [ 11.218062][ T378] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 11.218067][ T378] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 11.218070][ T378] br_device_event (net/bridge/br.c:111) [ 11.218073][ T378] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.218076][ T378] ? packet_sendmsg_spkt (af_packet.c:?) [ 11.218082][ T378] notifier_call_chain (kernel/notifier.c:85) [ 11.218087][ T378] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 11.218092][ T378] ? netif_change_name (net/core/dev.c:1517) [ 11.218096][ T378] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 11.218099][ T378] ? __kernel_text_address (kernel/extable.c:79) [ 11.218102][ T378] ? write_profile (profile.c:?) [ 11.218107][ T378] netif_change_flags (net/core/dev.c:9882) [ 11.218111][ T378] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 11.218114][ T378] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.218116][ T378] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.218117][ T378] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.218119][ T378] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.218123][ T378] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.218125][ T378] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.218126][ T378] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.218129][ T378] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.218131][ T378] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.218132][ T378] ? kasan_save_track (mm/kasan/common.c:78) [ 11.218133][ T378] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.218136][ T378] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.218137][ T378] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.218140][ T378] ? ___sys_sendmsg (net/socket.c:2758) [ 11.218144][ T378] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.218146][ T378] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.218149][ T378] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.218150][ T378] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.218152][ T378] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.218153][ T378] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.218155][ T378] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.218157][ T378] ? __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) [ 11.218158][ T378] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.218160][ T378] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.218163][ T378] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.218167][ T378] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.218169][ T378] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.218174][ T378] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.218179][ T378] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.218181][ T378] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.218186][ T378] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.218188][ T378] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.218190][ T378] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.218192][ T378] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.218195][ T378] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.218197][ T378] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.218200][ T378] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.218202][ T378] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.218206][ T378] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.218208][ T378] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.218212][ T378] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.218215][ T378] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.218218][ T378] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.218224][ T378] ? 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)) [ 11.218226][ T378] ? 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)) [ 11.218230][ T378] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.218234][ T378] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.218237][ T378] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.218241][ T378] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.218245][ T378] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.218249][ T378] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.218250][ T378] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.218256][ T378] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.218259][ T378] ____sys_sendmsg (net/socket.c:2713) [ 11.218261][ T378] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.218263][ T378] ? sock_write_iter (net/socket.c:1269) [ 11.218264][ T378] ? move_addr_to_kernel (net/socket.c:258) [ 11.218272][ T378] ___sys_sendmsg (net/socket.c:2767) [ 11.218274][ T378] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.218290][ T378] __sys_sendmsg (net/socket.c:2799) [ 11.218293][ T378] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.218299][ T378] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.218302][ T378] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.218305][ T378] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.218308][ T378] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.218310][ T378] RIP: 0033:0x7f565358854e [ 11.218312][ T378] 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 [ 11.218314][ T378] RSP: 002b:00007ffe6b342f10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.218316][ T378] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f565358854e [ 11.218317][ T378] RDX: 0000000000000000 RSI: 00007ffe6b342fc0 RDI: 0000000000000005 [ 11.218318][ T378] RBP: 00007ffe6b342f20 R08: 0000000000000000 R09: 0000000000000000 [ 11.218319][ T378] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917001 [ 11.218320][ T378] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6b343680 | [ 12.434470][ T516] softirqs last disabled at (21014): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 12.434472][ T516] Preemption disabled at: | [ 12.434473][ T516] 0x0 | [ 12.434483][ T516] Tainted: [W]=WARN [ 12.434484][ T516] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.434486][ T516] Call Trace: [ 12.434487][ T516] [ 12.434489][ T516] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.434495][ T516] __might_resched.cold (kernel/sched/core.c:9234) [ 12.434499][ T516] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.434503][ T516] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.434508][ T516] __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)) [ 12.434509][ T516] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.434516][ T516] ? 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) [ 12.434518][ T516] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.434522][ T516] put_chars (drivers/char/virtio_console.c:1176) [ 12.434525][ T516] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.434526][ T516] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.434529][ T516] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.434535][ T516] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.434543][ T516] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.434545][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434547][ T516] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.434551][ T516] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.434555][ T516] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.434557][ T516] ? 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)) [ 12.434560][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434562][ T516] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.434566][ T516] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.434570][ T516] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.434572][ T516] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.434577][ T516] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.434580][ T516] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.434582][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434584][ T516] ? 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) [ 12.434587][ T516] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.434589][ T516] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.434592][ T516] vprintk_emit (kernel/printk/printk.c:2479) [ 12.434595][ T516] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.434597][ T516] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.434599][ T516] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.434603][ T516] _printk (kernel/printk/printk.c:2504) [ 12.434607][ T516] ? snapshot_read.cold (user.c:?) [ 12.434612][ T516] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.434616][ T516] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 12.434621][ T516] br_init_port (net/bridge/br_stp_if.c:39) [ 12.434623][ T516] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 12.434625][ T516] br_device_event (net/bridge/br.c:120) [ 12.434628][ T516] ? packet_sendmsg_spkt (af_packet.c:?) [ 12.434630][ T516] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 12.434636][ T516] notifier_call_chain (kernel/notifier.c:85) [ 12.434642][ T516] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 12.434647][ T516] ? netif_change_name (net/core/dev.c:1517) [ 12.434651][ T516] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 12.434653][ T516] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 12.434656][ T516] ? __kernel_text_address (kernel/extable.c:79) [ 12.434658][ T516] ? write_profile (profile.c:?) [ 12.434663][ T516] netif_change_flags (net/core/dev.c:9882) [ 12.434666][ T516] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 12.434670][ T516] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.434672][ T516] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.434673][ T516] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.434675][ T516] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.434678][ T516] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.434680][ T516] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.434682][ T516] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.434684][ T516] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.434687][ T516] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.434688][ T516] ? kasan_save_track (mm/kasan/common.c:78) [ 12.434689][ T516] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.434691][ T516] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.434693][ T516] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.434696][ T516] ? ___sys_sendmsg (net/socket.c:2758) [ 12.434700][ T516] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.434702][ T516] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.434704][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434706][ T516] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.434708][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434709][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434710][ T516] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.434713][ T516] ? __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) [ 12.434715][ T516] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.434717][ T516] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.434721][ T516] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.434724][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434726][ T516] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.434731][ T516] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.434737][ T516] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.434738][ T516] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.434743][ T516] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.434745][ T516] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.434747][ T516] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.434749][ T516] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.434753][ T516] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.434755][ T516] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.434758][ T516] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.434759][ T516] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.434764][ T516] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.434772][ T516] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.434775][ T516] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.434777][ T516] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.434780][ T516] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.434786][ T516] ? 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)) [ 12.434788][ T516] ? 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)) [ 12.434793][ T516] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.434797][ T516] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.434799][ T516] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.434803][ T516] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.434807][ T516] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.434811][ T516] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.434813][ T516] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.434818][ T516] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.434821][ T516] ____sys_sendmsg (net/socket.c:2713) [ 12.434823][ T516] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.434825][ T516] ? sock_write_iter (net/socket.c:1269) [ 12.434827][ T516] ? move_addr_to_kernel (net/socket.c:258) [ 12.434834][ T516] ___sys_sendmsg (net/socket.c:2767) [ 12.434837][ T516] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.434852][ T516] __sys_sendmsg (net/socket.c:2799) [ 12.434855][ T516] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.434861][ T516] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.434864][ T516] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.434867][ T516] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.434870][ T516] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.434872][ T516] RIP: 0033:0x7ff0ef9a754e [ 12.434874][ T516] 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 [ 12.434876][ T516] RSP: 002b:00007ffc0a0abec0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.434878][ T516] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff0ef9a754e [ 12.434880][ T516] RDX: 0000000000000000 RSI: 00007ffc0a0abf70 RDI: 0000000000000005 [ 12.434880][ T516] RBP: 00007ffc0a0abed0 R08: 0000000000000000 R09: 0000000000000000 [ 12.434881][ T516] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917002 [ 12.434882][ T516] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc0a0ac630 | [ 13.771445][ T638] softirqs last disabled at (13024): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 13.771448][ T638] Preemption disabled at: | [ 13.771448][ T638] 0x0 | [ 13.771458][ T638] Tainted: [W]=WARN [ 13.771459][ T638] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.771461][ T638] Call Trace: [ 13.771462][ T638] [ 13.771464][ T638] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.771470][ T638] __might_resched.cold (kernel/sched/core.c:9234) [ 13.771475][ T638] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.771479][ T638] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.771483][ T638] __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)) [ 13.771485][ T638] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.771492][ T638] ? 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) [ 13.771494][ T638] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.771498][ T638] put_chars (drivers/char/virtio_console.c:1176) [ 13.771500][ T638] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.771507][ T638] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.771514][ T638] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.771517][ T638] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.771522][ T638] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.771526][ T638] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.771528][ T638] ? 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)) [ 13.771531][ T638] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.771533][ T638] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.771537][ T638] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.771542][ T638] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.771543][ T638] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.771549][ T638] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.771552][ T638] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.771553][ T638] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.771555][ T638] ? 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) [ 13.771559][ T638] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.771560][ T638] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.771563][ T638] vprintk_emit (kernel/printk/printk.c:2479) [ 13.771566][ T638] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.771568][ T638] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.771570][ T638] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.771572][ T638] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.771576][ T638] _printk (kernel/printk/printk.c:2504) [ 13.771580][ T638] ? snapshot_read.cold (user.c:?) [ 13.771587][ T638] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 13.771592][ T638] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 13.771595][ T638] br_device_event (net/bridge/br.c:111) [ 13.771598][ T638] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 13.771601][ T638] ? packet_sendmsg_spkt (af_packet.c:?) [ 13.771607][ T638] notifier_call_chain (kernel/notifier.c:85) [ 13.771612][ T638] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 13.771617][ T638] ? netif_change_name (net/core/dev.c:1517) [ 13.771621][ T638] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 13.771624][ T638] ? __kernel_text_address (kernel/extable.c:79) [ 13.771626][ T638] ? write_profile (profile.c:?) [ 13.771631][ T638] netif_change_flags (net/core/dev.c:9882) [ 13.771635][ T638] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 13.771638][ T638] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.771641][ T638] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.771642][ T638] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.771644][ T638] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.771647][ T638] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.771649][ T638] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.771651][ T638] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.771653][ T638] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.771655][ T638] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.771656][ T638] ? kasan_save_track (mm/kasan/common.c:78) [ 13.771658][ T638] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 13.771660][ T638] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.771662][ T638] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 13.771665][ T638] ? ___sys_sendmsg (net/socket.c:2758) [ 13.771668][ T638] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.771670][ T638] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.771673][ T638] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.771675][ T638] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.771676][ T638] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.771677][ T638] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.771679][ T638] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.771681][ T638] ? __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) [ 13.771683][ T638] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.771684][ T638] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.771688][ T638] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.771691][ T638] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.771693][ T638] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.771698][ T638] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.771704][ T638] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.771706][ T638] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.771710][ T638] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.771712][ T638] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.771714][ T638] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.771716][ T638] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.771720][ T638] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.771722][ T638] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.771725][ T638] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.771726][ T638] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.771730][ T638] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.771732][ T638] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.771736][ T638] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.771739][ T638] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.771742][ T638] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.771748][ T638] ? 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)) [ 13.771750][ T638] ? 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)) [ 13.771754][ T638] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.771758][ T638] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.771761][ T638] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.771765][ T638] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.771773][ T638] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.771776][ T638] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.771778][ T638] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 13.771788][ T638] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 13.771790][ T638] ____sys_sendmsg (net/socket.c:2713) [ 13.771793][ T638] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.771795][ T638] ? sock_write_iter (net/socket.c:1269) [ 13.771796][ T638] ? move_addr_to_kernel (net/socket.c:258) [ 13.771804][ T638] ___sys_sendmsg (net/socket.c:2767) [ 13.771806][ T638] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.771822][ T638] __sys_sendmsg (net/socket.c:2799) [ 13.771825][ T638] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.771831][ T638] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.771834][ T638] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.771837][ T638] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.771840][ T638] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.771842][ T638] RIP: 0033:0x7f463077654e [ 13.771844][ T638] 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 [ 13.771846][ T638] RSP: 002b:00007ffcd9054df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.771848][ T638] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f463077654e [ 13.771850][ T638] RDX: 0000000000000000 RSI: 00007ffcd9054ea0 RDI: 0000000000000005 [ 13.771850][ T638] RBP: 00007ffcd9054e00 R08: 0000000000000000 R09: 0000000000000000 [ 13.771851][ T638] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917004 [ 13.771852][ T638] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcd9055560 | [ 14.967216][ T776] softirqs last disabled at (14544): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 14.967219][ T776] Preemption disabled at: | [ 14.967219][ T776] 0x0 | [ 14.967229][ T776] Tainted: [W]=WARN [ 14.967230][ T776] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.967232][ T776] Call Trace: [ 14.967233][ T776] [ 14.967235][ T776] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.967241][ T776] __might_resched.cold (kernel/sched/core.c:9234) [ 14.967245][ T776] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.967250][ T776] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.967255][ T776] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 14.967256][ T776] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.967263][ T776] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 14.967266][ T776] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.967269][ T776] put_chars (drivers/char/virtio_console.c:1176) [ 14.967272][ T776] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.967273][ T776] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.967277][ T776] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.967282][ T776] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.967290][ T776] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.967293][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967295][ T776] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.967299][ T776] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.967303][ T776] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.967305][ T776] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 14.967308][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967310][ T776] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.967314][ T776] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.967318][ T776] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.967320][ T776] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.967325][ T776] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.967328][ T776] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.967330][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967332][ T776] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 14.967336][ T776] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.967337][ T776] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.967340][ T776] vprintk_emit (kernel/printk/printk.c:2479) [ 14.967344][ T776] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.967346][ T776] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.967348][ T776] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.967352][ T776] _printk (kernel/printk/printk.c:2504) [ 14.967356][ T776] ? snapshot_read.cold (user.c:?) [ 14.967361][ T776] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.967365][ T776] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 14.967370][ T776] br_init_port (net/bridge/br_stp_if.c:39) [ 14.967372][ T776] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 14.967374][ T776] br_device_event (net/bridge/br.c:120) [ 14.967377][ T776] ? packet_sendmsg_spkt (af_packet.c:?) [ 14.967378][ T776] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 14.967385][ T776] notifier_call_chain (kernel/notifier.c:85) [ 14.967391][ T776] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 14.967396][ T776] ? netif_change_name (net/core/dev.c:1517) [ 14.967400][ T776] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 14.967402][ T776] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 14.967405][ T776] ? __kernel_text_address (kernel/extable.c:79) [ 14.967407][ T776] ? write_profile (profile.c:?) [ 14.967412][ T776] netif_change_flags (net/core/dev.c:9882) [ 14.967416][ T776] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 14.967419][ T776] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 14.967421][ T776] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 14.967422][ T776] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 14.967424][ T776] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 14.967428][ T776] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.967429][ T776] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.967431][ T776] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.967434][ T776] ? kasan_save_stack (mm/kasan/common.c:58) [ 14.967436][ T776] ? kasan_save_stack (mm/kasan/common.c:57) [ 14.967437][ T776] ? kasan_save_track (mm/kasan/common.c:78) [ 14.967438][ T776] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 14.967441][ T776] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.967442][ T776] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 14.967445][ T776] ? ___sys_sendmsg (net/socket.c:2758) [ 14.967450][ T776] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.967451][ T776] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.967454][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967456][ T776] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.967457][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967459][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967460][ T776] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 14.967463][ T776] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 14.967465][ T776] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 14.967467][ T776] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.967471][ T776] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 14.967475][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967477][ T776] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 14.967482][ T776] rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.967488][ T776] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.967490][ T776] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.967494][ T776] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.967496][ T776] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.967499][ T776] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.967500][ T776] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.967504][ T776] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.967506][ T776] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.967510][ T776] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.967511][ T776] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.967516][ T776] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.967517][ T776] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.967521][ T776] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 14.967523][ T776] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.967526][ T776] ? netlink_ack (./include/linux/skbuff.h:2718) [ 14.967535][ T776] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 14.967537][ T776] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 14.967542][ T776] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 14.967546][ T776] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 14.967548][ T776] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.967552][ T776] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 14.967556][ T776] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 14.967560][ T776] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.967562][ T776] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 14.967567][ T776] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 14.967569][ T776] ____sys_sendmsg (net/socket.c:2713) [ 14.967572][ T776] ? copy_msghdr_from_user (net/socket.c:2650) [ 14.967574][ T776] ? sock_write_iter (net/socket.c:1269) [ 14.967575][ T776] ? move_addr_to_kernel (net/socket.c:258) [ 14.967583][ T776] ___sys_sendmsg (net/socket.c:2767) [ 14.967586][ T776] ? copy_msghdr_from_user (net/socket.c:2619) [ 14.967601][ T776] __sys_sendmsg (net/socket.c:2799) [ 14.967604][ T776] ? __sys_sendmsg_sock (net/socket.c:2780) [ 14.967610][ T776] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.967613][ T776] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.967616][ T776] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.967619][ T776] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.967621][ T776] RIP: 0033:0x7f57b85f754e [ 14.967623][ T776] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 14.967625][ T776] RSP: 002b:00007ffde957eb10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 14.967628][ T776] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f57b85f754e [ 14.967629][ T776] RDX: 0000000000000000 RSI: 00007ffde957ebc0 RDI: 0000000000000005 [ 14.967630][ T776] RBP: 00007ffde957eb20 R08: 0000000000000000 R09: 0000000000000000 [ 14.967631][ T776] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917005 [ 14.967632][ T776] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde957f280 | [ 16.575475][ T926] softirqs last disabled at (23378): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 16.575478][ T926] Preemption disabled at: | [ 16.575478][ T926] 0x0 | [ 16.575488][ T926] Tainted: [W]=WARN [ 16.575489][ T926] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.575490][ T926] Call Trace: [ 16.575492][ T926] [ 16.575493][ T926] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.575500][ T926] __might_resched.cold (kernel/sched/core.c:9234) [ 16.575504][ T926] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.575508][ T926] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.575513][ T926] __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)) [ 16.575514][ T926] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.575521][ T926] ? 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) [ 16.575524][ T926] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.575527][ T926] put_chars (drivers/char/virtio_console.c:1176) [ 16.575530][ T926] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.575536][ T926] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.575543][ T926] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.575546][ T926] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.575551][ T926] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.575555][ T926] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.575557][ T926] ? 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)) [ 16.575560][ T926] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.575563][ T926] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.575567][ T926] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.575571][ T926] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.575573][ T926] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.575578][ T926] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.575581][ T926] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.575583][ T926] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.575584][ T926] ? 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) [ 16.575588][ T926] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.575590][ T926] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.575592][ T926] vprintk_emit (kernel/printk/printk.c:2479) [ 16.575595][ T926] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.575597][ T926] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 16.575599][ T926] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.575601][ T926] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.575606][ T926] _printk (kernel/printk/printk.c:2504) [ 16.575609][ T926] ? snapshot_read.cold (user.c:?) [ 16.575617][ T926] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 16.575621][ T926] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 16.575624][ T926] br_device_event (net/bridge/br.c:111) [ 16.575627][ T926] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 16.575630][ T926] ? packet_sendmsg_spkt (af_packet.c:?) [ 16.575636][ T926] notifier_call_chain (kernel/notifier.c:85) [ 16.575641][ T926] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 16.575646][ T926] ? netif_change_name (net/core/dev.c:1517) [ 16.575650][ T926] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 16.575653][ T926] ? __kernel_text_address (kernel/extable.c:79) [ 16.575656][ T926] ? write_profile (profile.c:?) [ 16.575660][ T926] netif_change_flags (net/core/dev.c:9882) [ 16.575664][ T926] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 16.575668][ T926] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 16.575670][ T926] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 16.575671][ T926] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 16.575673][ T926] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 16.575676][ T926] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.575678][ T926] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.575680][ T926] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.575682][ T926] ? kasan_save_stack (mm/kasan/common.c:58) [ 16.575685][ T926] ? kasan_save_stack (mm/kasan/common.c:57) [ 16.575686][ T926] ? kasan_save_track (mm/kasan/common.c:78) [ 16.575687][ T926] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 16.575689][ T926] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.575691][ T926] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 16.575694][ T926] ? ___sys_sendmsg (net/socket.c:2758) [ 16.575698][ T926] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.575700][ T926] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.575702][ T926] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.575704][ T926] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.575706][ T926] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.575707][ T926] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.575708][ T926] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 16.575711][ T926] ? __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) [ 16.575712][ T926] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 16.575714][ T926] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 16.575717][ T926] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 16.575721][ T926] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.575723][ T926] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 16.575728][ T926] rtnl_newlink (net/core/rtnetlink.c:4215) [ 16.575733][ T926] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.575735][ T926] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.575740][ T926] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.575742][ T926] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.575744][ T926] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.575745][ T926] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.575749][ T926] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 16.575751][ T926] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 16.575754][ T926] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.575756][ T926] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.575760][ T926] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.575762][ T926] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.575765][ T926] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 16.575771][ T926] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 16.575774][ T926] ? netlink_ack (./include/linux/skbuff.h:2718) [ 16.575780][ T926] ? 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)) [ 16.575782][ T926] ? 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)) [ 16.575786][ T926] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 16.575790][ T926] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 16.575793][ T926] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.575797][ T926] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 16.575801][ T926] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 16.575805][ T926] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.575807][ T926] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 16.575816][ T926] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 16.575819][ T926] ____sys_sendmsg (net/socket.c:2713) [ 16.575821][ T926] ? copy_msghdr_from_user (net/socket.c:2650) [ 16.575823][ T926] ? sock_write_iter (net/socket.c:1269) [ 16.575825][ T926] ? move_addr_to_kernel (net/socket.c:258) [ 16.575832][ T926] ___sys_sendmsg (net/socket.c:2767) [ 16.575835][ T926] ? copy_msghdr_from_user (net/socket.c:2619) [ 16.575851][ T926] __sys_sendmsg (net/socket.c:2799) [ 16.575853][ T926] ? __sys_sendmsg_sock (net/socket.c:2780) [ 16.575859][ T926] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.575862][ T926] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.575865][ T926] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.575868][ T926] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.575870][ T926] RIP: 0033:0x7f97c6bd454e [ 16.575873][ T926] 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 [ 16.575874][ T926] RSP: 002b:00007ffcd238a740 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 16.575877][ T926] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f97c6bd454e [ 16.575878][ T926] RDX: 0000000000000000 RSI: 00007ffcd238a7f0 RDI: 0000000000000005 [ 16.575879][ T926] RBP: 00007ffcd238a750 R08: 0000000000000000 R09: 0000000000000000 [ 16.575880][ T926] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917006 [ 16.575881][ T926] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcd238aeb0 | [ 17.763253][ T38] softirqs last disabled at (188578): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 17.763255][ T38] Preemption disabled at: | [ 17.763256][ T38] 0x0 | [ 17.763266][ T38] Tainted: [W]=WARN [ 17.763267][ T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.763268][ T38] Workqueue: events_unbound linkwatch_event [ 17.763271][ T38] Call Trace: [ 17.763273][ T38] [ 17.763275][ T38] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.763281][ T38] __might_resched.cold (kernel/sched/core.c:9234) [ 17.763286][ T38] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.763290][ T38] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.763294][ T38] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 17.763296][ T38] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.763302][ T38] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 17.763305][ T38] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.763309][ T38] put_chars (drivers/char/virtio_console.c:1176) [ 17.763311][ T38] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.763314][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.763316][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.763319][ T38] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.763323][ T38] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.763327][ T38] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.763329][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.763330][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.763335][ T38] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.763337][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.763341][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.763345][ T38] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.763349][ T38] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.763351][ T38] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 17.763354][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.763356][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.763360][ T38] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.763364][ T38] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.763366][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.763371][ T38] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.763374][ T38] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.763376][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.763377][ T38] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 17.763381][ T38] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.763383][ T38] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.763386][ T38] vprintk_emit (kernel/printk/printk.c:2479) [ 17.763389][ T38] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.763391][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.763393][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.763396][ T38] _printk (kernel/printk/printk.c:2504) [ 17.763400][ T38] ? snapshot_read.cold (user.c:?) [ 17.763405][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.763409][ T38] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 17.763413][ T38] br_init_port (net/bridge/br_stp_if.c:39) [ 17.763416][ T38] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 17.763418][ T38] br_port_carrier_check (net/bridge/br_if.c:90) [ 17.763421][ T38] br_device_event (net/bridge/br.c:101) [ 17.763424][ T38] ? packet_sendmsg_spkt (af_packet.c:?) [ 17.763426][ T38] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 17.763433][ T38] notifier_call_chain (kernel/notifier.c:85) [ 17.763438][ T38] netif_state_change (net/core/dev.c:1625) [ 17.763443][ T38] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 17.763448][ T38] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 17.763450][ T38] __linkwatch_run_queue (net/core/link_watch.c:240) [ 17.763453][ T38] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 17.763455][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.763460][ T38] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 17.763462][ T38] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 17.763465][ T38] process_one_work (kernel/workqueue.c:3387) [ 17.763472][ T38] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 17.763475][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.763482][ T38] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 17.763489][ T38] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 17.763492][ T38] kthread (kernel/kthread.c:436) [ 17.763494][ T38] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.763497][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.763500][ T38] ret_from_fork (arch/x86/kernel/process.c:158) [ 17.763504][ T38] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 17.763507][ T38] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 17.763511][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.763513][ T38] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 19.116786][ T1189] softirqs last disabled at (16376): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 19.116788][ T1189] Preemption disabled at: | [ 19.116789][ T1189] 0x0 | [ 19.116799][ T1189] Tainted: [W]=WARN [ 19.116800][ T1189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.116802][ T1189] Call Trace: [ 19.116803][ T1189] [ 19.116805][ T1189] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.116811][ T1189] __might_resched.cold (kernel/sched/core.c:9234) [ 19.116815][ T1189] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.116819][ T1189] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.116824][ T1189] __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)) [ 19.116826][ T1189] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.116832][ T1189] ? 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) [ 19.116839][ T1189] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.116843][ T1189] put_chars (drivers/char/virtio_console.c:1176) [ 19.116845][ T1189] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.116852][ T1189] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.116859][ T1189] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.116862][ T1189] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.116867][ T1189] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.116871][ T1189] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.116873][ T1189] ? 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)) [ 19.116876][ T1189] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.116879][ T1189] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.116883][ T1189] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.116887][ T1189] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.116889][ T1189] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.116894][ T1189] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.116897][ T1189] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.116899][ T1189] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.116900][ T1189] ? 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) [ 19.116904][ T1189] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.116906][ T1189] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.116909][ T1189] vprintk_emit (kernel/printk/printk.c:2479) [ 19.116912][ T1189] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.116913][ T1189] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 19.116915][ T1189] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.116917][ T1189] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.116922][ T1189] _printk (kernel/printk/printk.c:2504) [ 19.116925][ T1189] ? snapshot_read.cold (user.c:?) [ 19.116932][ T1189] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 19.116937][ T1189] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 19.116940][ T1189] br_device_event (net/bridge/br.c:111) [ 19.116942][ T1189] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 19.116946][ T1189] ? packet_sendmsg_spkt (af_packet.c:?) [ 19.116952][ T1189] notifier_call_chain (kernel/notifier.c:85) [ 19.116957][ T1189] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 19.116962][ T1189] ? netif_change_name (net/core/dev.c:1517) [ 19.116966][ T1189] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 19.116969][ T1189] ? __kernel_text_address (kernel/extable.c:79) [ 19.116971][ T1189] ? write_profile (profile.c:?) [ 19.116976][ T1189] netif_change_flags (net/core/dev.c:9882) [ 19.116980][ T1189] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 19.116983][ T1189] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 19.116985][ T1189] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 19.116987][ T1189] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 19.116989][ T1189] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 19.116992][ T1189] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.116994][ T1189] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.116996][ T1189] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.116998][ T1189] ? kasan_save_stack (mm/kasan/common.c:58) [ 19.117000][ T1189] ? kasan_save_stack (mm/kasan/common.c:57) [ 19.117002][ T1189] ? kasan_save_track (mm/kasan/common.c:78) [ 19.117003][ T1189] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 19.117005][ T1189] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.117007][ T1189] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 19.117010][ T1189] ? ___sys_sendmsg (net/socket.c:2758) [ 19.117014][ T1189] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.117016][ T1189] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.117018][ T1189] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.117020][ T1189] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.117021][ T1189] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.117022][ T1189] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.117024][ T1189] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 19.117026][ T1189] ? __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) [ 19.117028][ T1189] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 19.117030][ T1189] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.117033][ T1189] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 19.117036][ T1189] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.117039][ T1189] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 19.117044][ T1189] rtnl_newlink (net/core/rtnetlink.c:4215) [ 19.117049][ T1189] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.117051][ T1189] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.117056][ T1189] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.117057][ T1189] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.117060][ T1189] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.117061][ T1189] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.117065][ T1189] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.117067][ T1189] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 19.117070][ T1189] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.117072][ T1189] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.117076][ T1189] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.117078][ T1189] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.117081][ T1189] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 19.117085][ T1189] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.117088][ T1189] ? netlink_ack (./include/linux/skbuff.h:2718) [ 19.117094][ T1189] ? 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)) [ 19.117096][ T1189] ? 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)) [ 19.117101][ T1189] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 19.117105][ T1189] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 19.117107][ T1189] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.117111][ T1189] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 19.117115][ T1189] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 19.117119][ T1189] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.117121][ T1189] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 19.117126][ T1189] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 19.117129][ T1189] ____sys_sendmsg (net/socket.c:2713) [ 19.117131][ T1189] ? copy_msghdr_from_user (net/socket.c:2650) [ 19.117133][ T1189] ? sock_write_iter (net/socket.c:1269) [ 19.117135][ T1189] ? move_addr_to_kernel (net/socket.c:258) [ 19.117142][ T1189] ___sys_sendmsg (net/socket.c:2767) [ 19.117145][ T1189] ? copy_msghdr_from_user (net/socket.c:2619) [ 19.117160][ T1189] __sys_sendmsg (net/socket.c:2799) [ 19.117163][ T1189] ? __sys_sendmsg_sock (net/socket.c:2780) [ 19.117169][ T1189] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.117172][ T1189] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.117175][ T1189] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.117178][ T1189] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.117180][ T1189] RIP: 0033:0x7ff233d3454e [ 19.117183][ T1189] 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 [ 19.117184][ T1189] RSP: 002b:00007ffe342edd10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 19.117187][ T1189] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff233d3454e [ 19.117189][ T1189] RDX: 0000000000000000 RSI: 00007ffe342eddc0 RDI: 0000000000000005 [ 19.117189][ T1189] RBP: 00007ffe342edd20 R08: 0000000000000000 R09: 0000000000000000 [ 19.117190][ T1189] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917009 [ 19.117191][ T1189] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe342ee480 | [ 20.291668][ T1327] softirqs last disabled at (17032): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 20.291671][ T1327] Preemption disabled at: | [ 20.291671][ T1327] 0x0 | [ 20.291682][ T1327] Tainted: [W]=WARN [ 20.291683][ T1327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.291684][ T1327] Call Trace: [ 20.291686][ T1327] [ 20.291687][ T1327] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.291694][ T1327] __might_resched.cold (kernel/sched/core.c:9234) [ 20.291698][ T1327] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.291703][ T1327] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 20.291707][ T1327] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 20.291709][ T1327] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.291715][ T1327] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 20.291718][ T1327] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.291722][ T1327] put_chars (drivers/char/virtio_console.c:1176) [ 20.291724][ T1327] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.291725][ T1327] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.291729][ T1327] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.291734][ T1327] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.291742][ T1327] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.291744][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.291746][ T1327] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.291750][ T1327] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.291754][ T1327] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.291756][ T1327] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 20.291759][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.291761][ T1327] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.291765][ T1327] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.291771][ T1327] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.291773][ T1327] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.291778][ T1327] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.291781][ T1327] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.291783][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.291785][ T1327] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 20.291788][ T1327] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.291790][ T1327] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.291793][ T1327] vprintk_emit (kernel/printk/printk.c:2479) [ 20.291796][ T1327] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.291798][ T1327] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.291800][ T1327] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.291804][ T1327] _printk (kernel/printk/printk.c:2504) [ 20.291808][ T1327] ? snapshot_read.cold (user.c:?) [ 20.291813][ T1327] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.291817][ T1327] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 20.291821][ T1327] br_init_port (net/bridge/br_stp_if.c:39) [ 20.291824][ T1327] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 20.291826][ T1327] br_device_event (net/bridge/br.c:120) [ 20.291828][ T1327] ? packet_sendmsg_spkt (af_packet.c:?) [ 20.291830][ T1327] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 20.291837][ T1327] notifier_call_chain (kernel/notifier.c:85) [ 20.291842][ T1327] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 20.291852][ T1327] ? netif_change_name (net/core/dev.c:1517) [ 20.291855][ T1327] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 20.291858][ T1327] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 20.291861][ T1327] ? __kernel_text_address (kernel/extable.c:79) [ 20.291862][ T1327] ? write_profile (profile.c:?) [ 20.291867][ T1327] netif_change_flags (net/core/dev.c:9882) [ 20.291871][ T1327] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 20.291874][ T1327] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 20.291876][ T1327] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 20.291878][ T1327] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 20.291880][ T1327] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.291883][ T1327] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.291885][ T1327] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.291887][ T1327] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.291889][ T1327] ? kasan_save_stack (mm/kasan/common.c:58) [ 20.291891][ T1327] ? kasan_save_stack (mm/kasan/common.c:57) [ 20.291892][ T1327] ? kasan_save_track (mm/kasan/common.c:78) [ 20.291894][ T1327] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 20.291896][ T1327] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.291898][ T1327] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 20.291901][ T1327] ? ___sys_sendmsg (net/socket.c:2758) [ 20.291904][ T1327] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.291906][ T1327] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.291909][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.291911][ T1327] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.291912][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.291913][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.291915][ T1327] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 20.291917][ T1327] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 20.291920][ T1327] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 20.291922][ T1327] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.291925][ T1327] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 20.291929][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.291931][ T1327] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 20.291936][ T1327] rtnl_newlink (net/core/rtnetlink.c:4215) [ 20.291941][ T1327] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.291943][ T1327] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.291947][ T1327] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.291949][ T1327] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.291951][ T1327] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.291953][ T1327] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.291957][ T1327] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.291959][ T1327] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 20.291962][ T1327] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.291963][ T1327] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.291968][ T1327] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.291969][ T1327] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.291973][ T1327] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 20.291975][ T1327] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.291978][ T1327] ? netlink_ack (./include/linux/skbuff.h:2718) [ 20.291984][ T1327] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 20.291986][ T1327] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 20.291990][ T1327] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 20.291994][ T1327] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 20.291997][ T1327] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.292001][ T1327] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 20.292005][ T1327] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.292009][ T1327] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.292010][ T1327] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 20.292015][ T1327] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 20.292018][ T1327] ____sys_sendmsg (net/socket.c:2713) [ 20.292020][ T1327] ? copy_msghdr_from_user (net/socket.c:2650) [ 20.292023][ T1327] ? sock_write_iter (net/socket.c:1269) [ 20.292024][ T1327] ? move_addr_to_kernel (net/socket.c:258) [ 20.292031][ T1327] ___sys_sendmsg (net/socket.c:2767) [ 20.292034][ T1327] ? copy_msghdr_from_user (net/socket.c:2619) [ 20.292050][ T1327] __sys_sendmsg (net/socket.c:2799) [ 20.292052][ T1327] ? __sys_sendmsg_sock (net/socket.c:2780) [ 20.292058][ T1327] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.292061][ T1327] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.292064][ T1327] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.292067][ T1327] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.292069][ T1327] RIP: 0033:0x7fcfc8cb954e [ 20.292071][ T1327] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 20.292073][ T1327] RSP: 002b:00007ffd5a63c1e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 20.292076][ T1327] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcfc8cb954e [ 20.292077][ T1327] RDX: 0000000000000000 RSI: 00007ffd5a63c290 RDI: 0000000000000005 [ 20.292078][ T1327] RBP: 00007ffd5a63c1f0 R08: 0000000000000000 R09: 0000000000000000 [ 20.292079][ T1327] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91700a [ 20.292079][ T1327] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd5a63c950 | [ 21.859347][ T57] softirqs last disabled at (63072): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 21.859350][ T57] Preemption disabled at: | [ 21.859350][ T57] 0x0 | [ 21.859361][ T57] Tainted: [W]=WARN [ 21.859362][ T57] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.859363][ T57] Workqueue: events_unbound linkwatch_event [ 21.859366][ T57] Call Trace: [ 21.859368][ T57] [ 21.859370][ T57] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 21.859376][ T57] __might_resched.cold (kernel/sched/core.c:9234) [ 21.859380][ T57] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 21.859384][ T57] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 21.859389][ T57] __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)) [ 21.859391][ T57] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.859397][ T57] ? 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) [ 21.859400][ T57] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.859404][ T57] put_chars (drivers/char/virtio_console.c:1176) [ 21.859406][ T57] ? __send_to_port (drivers/char/virtio_console.c:654) [ 21.859409][ T57] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.859412][ T57] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.859414][ T57] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 21.859418][ T57] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 21.859423][ T57] ? mark_usage (kernel/locking/lockdep.c:4690) [ 21.859424][ T57] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.859426][ T57] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.859430][ T57] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 21.859432][ T57] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.859437][ T57] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.859441][ T57] console_emit_next_record (kernel/printk/printk.c:3183) [ 21.859445][ T57] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 21.859446][ T57] ? 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)) [ 21.859450][ T57] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.859451][ T57] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.859456][ T57] console_flush_one_record (kernel/printk/printk.c:3268) [ 21.859460][ T57] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 21.859462][ T57] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.859467][ T57] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 21.859470][ T57] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 21.859472][ T57] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.859473][ T57] ? 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) [ 21.859477][ T57] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 21.859479][ T57] ? vprintk_emit (kernel/printk/printk.c:2478) [ 21.859481][ T57] vprintk_emit (kernel/printk/printk.c:2479) [ 21.859485][ T57] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 21.859487][ T57] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.859489][ T57] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.859492][ T57] _printk (kernel/printk/printk.c:2504) [ 21.859496][ T57] ? snapshot_read.cold (user.c:?) [ 21.859501][ T57] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.859505][ T57] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 21.859509][ T57] br_init_port (net/bridge/br_stp_if.c:39) [ 21.859511][ T57] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 21.859513][ T57] br_port_carrier_check (net/bridge/br_if.c:90) [ 21.859517][ T57] br_device_event (net/bridge/br.c:101) [ 21.859520][ T57] ? packet_sendmsg_spkt (af_packet.c:?) [ 21.859522][ T57] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 21.859528][ T57] notifier_call_chain (kernel/notifier.c:85) [ 21.859534][ T57] netif_state_change (net/core/dev.c:1625) [ 21.859539][ T57] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 21.859543][ T57] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 21.859545][ T57] __linkwatch_run_queue (net/core/link_watch.c:240) [ 21.859548][ T57] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 21.859551][ T57] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.859555][ T57] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 21.859557][ T57] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 21.859561][ T57] process_one_work (kernel/workqueue.c:3387) [ 21.859567][ T57] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 21.859570][ T57] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.859578][ T57] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 21.859582][ T57] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 21.859584][ T57] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 21.859587][ T57] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 21.859589][ T57] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 21.859591][ T57] kthread (kernel/kthread.c:436) [ 21.859593][ T57] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 21.859597][ T57] ? kthread_affine_preferred (kernel/kthread.c:857) [ 21.859600][ T57] ret_from_fork (arch/x86/kernel/process.c:158) [ 21.859604][ T57] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 21.859607][ T57] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 21.859610][ T57] ? kthread_affine_preferred (kernel/kthread.c:857) [ 21.859613][ T57] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 23.031114][ T1596] softirqs last disabled at (28854): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 23.031116][ T1596] Preemption disabled at: | [ 23.031116][ T1596] 0x0 | [ 23.031126][ T1596] Tainted: [W]=WARN [ 23.031127][ T1596] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.031129][ T1596] Call Trace: [ 23.031130][ T1596] [ 23.031132][ T1596] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.031138][ T1596] __might_resched.cold (kernel/sched/core.c:9234) [ 23.031143][ T1596] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.031147][ T1596] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.031151][ T1596] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 23.031153][ T1596] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.031160][ T1596] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 23.031163][ T1596] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.031166][ T1596] put_chars (drivers/char/virtio_console.c:1176) [ 23.031169][ T1596] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.031170][ T1596] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.031173][ T1596] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.031179][ T1596] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.031186][ T1596] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.031189][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031191][ T1596] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.031195][ T1596] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.031199][ T1596] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.031201][ T1596] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 23.031204][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031205][ T1596] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.031209][ T1596] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.031214][ T1596] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.031215][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.031221][ T1596] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.031224][ T1596] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.031225][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031227][ T1596] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 23.031231][ T1596] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.031233][ T1596] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.031235][ T1596] vprintk_emit (kernel/printk/printk.c:2479) [ 23.031239][ T1596] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.031241][ T1596] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.031243][ T1596] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.031248][ T1596] _printk (kernel/printk/printk.c:2504) [ 23.031251][ T1596] ? snapshot_read.cold (user.c:?) [ 23.031256][ T1596] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.031260][ T1596] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 23.031265][ T1596] br_init_port (net/bridge/br_stp_if.c:39) [ 23.031267][ T1596] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 23.031269][ T1596] br_device_event (net/bridge/br.c:120) [ 23.031272][ T1596] ? packet_sendmsg_spkt (af_packet.c:?) [ 23.031273][ T1596] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 23.031280][ T1596] notifier_call_chain (kernel/notifier.c:85) [ 23.031285][ T1596] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 23.031291][ T1596] ? netif_change_name (net/core/dev.c:1517) [ 23.031294][ T1596] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 23.031297][ T1596] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 23.031300][ T1596] ? __kernel_text_address (kernel/extable.c:79) [ 23.031301][ T1596] ? write_profile (profile.c:?) [ 23.031306][ T1596] netif_change_flags (net/core/dev.c:9882) [ 23.031310][ T1596] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 23.031313][ T1596] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 23.031315][ T1596] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 23.031316][ T1596] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 23.031318][ T1596] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 23.031321][ T1596] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.031323][ T1596] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.031325][ T1596] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.031328][ T1596] ? kasan_save_stack (mm/kasan/common.c:58) [ 23.031330][ T1596] ? kasan_save_stack (mm/kasan/common.c:57) [ 23.031331][ T1596] ? kasan_save_track (mm/kasan/common.c:78) [ 23.031332][ T1596] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 23.031334][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.031336][ T1596] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 23.031339][ T1596] ? ___sys_sendmsg (net/socket.c:2758) [ 23.031343][ T1596] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.031345][ T1596] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.031348][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031349][ T1596] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.031351][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031352][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031354][ T1596] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 23.031356][ T1596] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 23.031359][ T1596] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 23.031361][ T1596] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.031364][ T1596] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 23.031368][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031370][ T1596] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 23.031375][ T1596] rtnl_newlink (net/core/rtnetlink.c:4215) [ 23.031380][ T1596] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.031382][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.031386][ T1596] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.031388][ T1596] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.031390][ T1596] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.031392][ T1596] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.031396][ T1596] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.031398][ T1596] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 23.031401][ T1596] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.031402][ T1596] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.031407][ T1596] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.031409][ T1596] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.031412][ T1596] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 23.031414][ T1596] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.031417][ T1596] ? netlink_ack (./include/linux/skbuff.h:2718) [ 23.031423][ T1596] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 23.031425][ T1596] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 23.031429][ T1596] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 23.031433][ T1596] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 23.031436][ T1596] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.031440][ T1596] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 23.031444][ T1596] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 23.031448][ T1596] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.031449][ T1596] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 23.031454][ T1596] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 23.031457][ T1596] ____sys_sendmsg (net/socket.c:2713) [ 23.031459][ T1596] ? copy_msghdr_from_user (net/socket.c:2650) [ 23.031462][ T1596] ? sock_write_iter (net/socket.c:1269) [ 23.031463][ T1596] ? move_addr_to_kernel (net/socket.c:258) [ 23.031470][ T1596] ___sys_sendmsg (net/socket.c:2767) [ 23.031473][ T1596] ? copy_msghdr_from_user (net/socket.c:2619) [ 23.031489][ T1596] __sys_sendmsg (net/socket.c:2799) [ 23.031491][ T1596] ? __sys_sendmsg_sock (net/socket.c:2780) [ 23.031497][ T1596] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.031500][ T1596] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 23.031503][ T1596] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 23.031506][ T1596] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 23.031508][ T1596] RIP: 0033:0x7f98d295454e [ 23.031510][ T1596] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 23.031512][ T1596] RSP: 002b:00007ffc39abae60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 23.031515][ T1596] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f98d295454e [ 23.031516][ T1596] RDX: 0000000000000000 RSI: 00007ffc39abaf10 RDI: 0000000000000005 [ 23.031517][ T1596] RBP: 00007ffc39abae70 R08: 0000000000000000 R09: 0000000000000000 [ 23.031518][ T1596] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91700d [ 23.031518][ T1596] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc39abb5d0 | [ 24.104087][ T1714] softirqs last disabled at (19562): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 24.104089][ T1714] Preemption disabled at: | [ 24.104090][ T1714] 0x0 | [ 24.104099][ T1714] Tainted: [W]=WARN [ 24.104100][ T1714] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.104102][ T1714] Call Trace: [ 24.104103][ T1714] [ 24.104105][ T1714] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.104111][ T1714] __might_resched.cold (kernel/sched/core.c:9234) [ 24.104116][ T1714] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.104120][ T1714] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.104124][ T1714] __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)) [ 24.104126][ T1714] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.104133][ T1714] ? 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) [ 24.104136][ T1714] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.104139][ T1714] put_chars (drivers/char/virtio_console.c:1176) [ 24.104142][ T1714] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.104148][ T1714] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.104155][ T1714] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.104158][ T1714] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.104163][ T1714] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.104167][ T1714] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.104169][ T1714] ? 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)) [ 24.104172][ T1714] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.104175][ T1714] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.104179][ T1714] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.104183][ T1714] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.104185][ T1714] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.104190][ T1714] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.104193][ T1714] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.104195][ T1714] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.104196][ T1714] ? 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) [ 24.104200][ T1714] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.104202][ T1714] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.104205][ T1714] vprintk_emit (kernel/printk/printk.c:2479) [ 24.104207][ T1714] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.104209][ T1714] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 24.104211][ T1714] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.104213][ T1714] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.104217][ T1714] _printk (kernel/printk/printk.c:2504) [ 24.104221][ T1714] ? snapshot_read.cold (user.c:?) [ 24.104228][ T1714] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 24.104233][ T1714] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 24.104236][ T1714] br_device_event (net/bridge/br.c:111) [ 24.104238][ T1714] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 24.104241][ T1714] ? packet_sendmsg_spkt (af_packet.c:?) [ 24.104247][ T1714] notifier_call_chain (kernel/notifier.c:85) [ 24.104253][ T1714] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 24.104257][ T1714] ? netif_change_name (net/core/dev.c:1517) [ 24.104261][ T1714] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 24.104264][ T1714] ? __kernel_text_address (kernel/extable.c:79) [ 24.104267][ T1714] ? write_profile (profile.c:?) [ 24.104272][ T1714] netif_change_flags (net/core/dev.c:9882) [ 24.104275][ T1714] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 24.104279][ T1714] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 24.104281][ T1714] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 24.104282][ T1714] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 24.104284][ T1714] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 24.104287][ T1714] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.104289][ T1714] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.104291][ T1714] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.104294][ T1714] ? kasan_save_stack (mm/kasan/common.c:58) [ 24.104296][ T1714] ? kasan_save_stack (mm/kasan/common.c:57) [ 24.104297][ T1714] ? kasan_save_track (mm/kasan/common.c:78) [ 24.104298][ T1714] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 24.104301][ T1714] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.104303][ T1714] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 24.104305][ T1714] ? ___sys_sendmsg (net/socket.c:2758) [ 24.104309][ T1714] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.104311][ T1714] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.104314][ T1714] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.104316][ T1714] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.104317][ T1714] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.104318][ T1714] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.104320][ T1714] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 24.104322][ T1714] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 24.104324][ T1714] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 24.104326][ T1714] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.104329][ T1714] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 24.104332][ T1714] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.104335][ T1714] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 24.104340][ T1714] rtnl_newlink (net/core/rtnetlink.c:4215) [ 24.104345][ T1714] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.104347][ T1714] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.104352][ T1714] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.104354][ T1714] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.104356][ T1714] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.104358][ T1714] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.104361][ T1714] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.104363][ T1714] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 24.104366][ T1714] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.104368][ T1714] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.104372][ T1714] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.104374][ T1714] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.104378][ T1714] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 24.104380][ T1714] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.104383][ T1714] ? netlink_ack (./include/linux/skbuff.h:2718) [ 24.104390][ T1714] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 24.104392][ T1714] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 24.104396][ T1714] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 24.104400][ T1714] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.104403][ T1714] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.104407][ T1714] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 24.104411][ T1714] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.104415][ T1714] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.104416][ T1714] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 24.104422][ T1714] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 24.104425][ T1714] ____sys_sendmsg (net/socket.c:2713) [ 24.104427][ T1714] ? copy_msghdr_from_user (net/socket.c:2650) [ 24.104429][ T1714] ? sock_write_iter (net/socket.c:1269) [ 24.104431][ T1714] ? move_addr_to_kernel (net/socket.c:258) [ 24.104438][ T1714] ___sys_sendmsg (net/socket.c:2767) [ 24.104441][ T1714] ? copy_msghdr_from_user (net/socket.c:2619) [ 24.104457][ T1714] __sys_sendmsg (net/socket.c:2799) [ 24.104459][ T1714] ? __sys_sendmsg_sock (net/socket.c:2780) [ 24.104466][ T1714] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.104469][ T1714] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.104472][ T1714] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.104475][ T1714] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.104477][ T1714] RIP: 0033:0x7fcc746c754e [ 24.104479][ T1714] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 24.104481][ T1714] RSP: 002b:00007fff6234bf90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 24.104483][ T1714] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcc746c754e [ 24.104485][ T1714] RDX: 0000000000000000 RSI: 00007fff6234c040 RDI: 0000000000000005 [ 24.104486][ T1714] RBP: 00007fff6234bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 24.104487][ T1714] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91700e [ 24.104487][ T1714] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6234c700 | [ 25.320670][ T1821] softirqs last disabled at (29992): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 25.320672][ T1821] Preemption disabled at: | [ 25.320673][ T1821] 0x0 | [ 25.320683][ T1821] Tainted: [W]=WARN [ 25.320684][ T1821] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.320685][ T1821] Call Trace: [ 25.320687][ T1821] [ 25.320688][ T1821] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.320695][ T1821] __might_resched.cold (kernel/sched/core.c:9234) [ 25.320699][ T1821] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.320704][ T1821] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.320708][ T1821] __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)) [ 25.320710][ T1821] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.320716][ T1821] ? 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) [ 25.320719][ T1821] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.320723][ T1821] put_chars (drivers/char/virtio_console.c:1176) [ 25.320725][ T1821] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.320732][ T1821] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.320739][ T1821] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.320742][ T1821] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.320747][ T1821] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.320751][ T1821] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.320753][ T1821] ? 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)) [ 25.320756][ T1821] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.320759][ T1821] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.320763][ T1821] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.320767][ T1821] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.320771][ T1821] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.320776][ T1821] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.320779][ T1821] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.320781][ T1821] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.320783][ T1821] ? 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) [ 25.320786][ T1821] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.320788][ T1821] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.320791][ T1821] vprintk_emit (kernel/printk/printk.c:2479) [ 25.320794][ T1821] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.320795][ T1821] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 25.320798][ T1821] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.320800][ T1821] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.320805][ T1821] _printk (kernel/printk/printk.c:2504) [ 25.320808][ T1821] ? snapshot_read.cold (user.c:?) [ 25.320815][ T1821] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 25.320820][ T1821] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 25.320824][ T1821] br_device_event (net/bridge/br.c:111) [ 25.320826][ T1821] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 25.320830][ T1821] ? packet_sendmsg_spkt (af_packet.c:?) [ 25.320835][ T1821] notifier_call_chain (kernel/notifier.c:85) [ 25.320841][ T1821] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 25.320846][ T1821] ? netif_change_name (net/core/dev.c:1517) [ 25.320850][ T1821] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 25.320853][ T1821] ? __kernel_text_address (kernel/extable.c:79) [ 25.320855][ T1821] ? write_profile (profile.c:?) [ 25.320860][ T1821] netif_change_flags (net/core/dev.c:9882) [ 25.320864][ T1821] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 25.320867][ T1821] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.320869][ T1821] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.320871][ T1821] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.320873][ T1821] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.320876][ T1821] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.320878][ T1821] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.320880][ T1821] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.320882][ T1821] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.320884][ T1821] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.320886][ T1821] ? kasan_save_track (mm/kasan/common.c:78) [ 25.320887][ T1821] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.320889][ T1821] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.320891][ T1821] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.320898][ T1821] ? ___sys_sendmsg (net/socket.c:2758) [ 25.320902][ T1821] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.320904][ T1821] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.320907][ T1821] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.320909][ T1821] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.320910][ T1821] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.320911][ T1821] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.320913][ T1821] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.320915][ T1821] ? __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) [ 25.320916][ T1821] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.320918][ T1821] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.320922][ T1821] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.320925][ T1821] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.320927][ T1821] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.320933][ T1821] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.320938][ T1821] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.320940][ T1821] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.320944][ T1821] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.320946][ T1821] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.320948][ T1821] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.320950][ T1821] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.320954][ T1821] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.320956][ T1821] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.320959][ T1821] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.320960][ T1821] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.320965][ T1821] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.320967][ T1821] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.320970][ T1821] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.320975][ T1821] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.320977][ T1821] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.320984][ T1821] ? 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)) [ 25.320986][ T1821] ? 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)) [ 25.320990][ T1821] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.320994][ T1821] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.320997][ T1821] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.321001][ T1821] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.321005][ T1821] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.321009][ T1821] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.321010][ T1821] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.321016][ T1821] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.321019][ T1821] ____sys_sendmsg (net/socket.c:2713) [ 25.321021][ T1821] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.321023][ T1821] ? sock_write_iter (net/socket.c:1269) [ 25.321025][ T1821] ? move_addr_to_kernel (net/socket.c:258) [ 25.321032][ T1821] ___sys_sendmsg (net/socket.c:2767) [ 25.321035][ T1821] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.321050][ T1821] __sys_sendmsg (net/socket.c:2799) [ 25.321053][ T1821] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.321059][ T1821] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.321062][ T1821] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.321065][ T1821] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.321068][ T1821] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.321070][ T1821] RIP: 0033:0x7fcc22a9254e [ 25.321073][ T1821] 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 [ 25.321074][ T1821] RSP: 002b:00007ffe7a86df80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.321077][ T1821] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcc22a9254e [ 25.321078][ T1821] RDX: 0000000000000000 RSI: 00007ffe7a86e030 RDI: 0000000000000005 [ 25.321079][ T1821] RBP: 00007ffe7a86df90 R08: 0000000000000000 R09: 0000000000000000 [ 25.321080][ T1821] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91700f [ 25.321081][ T1821] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe7a86e6f0 | [ 26.479190][ T1959] softirqs last disabled at (13414): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 26.479192][ T1959] Preemption disabled at: | [ 26.479193][ T1959] 0x0 | [ 26.479203][ T1959] Tainted: [W]=WARN [ 26.479204][ T1959] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.479205][ T1959] Call Trace: [ 26.479207][ T1959] [ 26.479208][ T1959] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.479215][ T1959] __might_resched.cold (kernel/sched/core.c:9234) [ 26.479219][ T1959] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.479223][ T1959] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.479227][ T1959] __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)) [ 26.479229][ T1959] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.479236][ T1959] ? 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) [ 26.479238][ T1959] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.479242][ T1959] put_chars (drivers/char/virtio_console.c:1176) [ 26.479245][ T1959] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.479246][ T1959] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.479249][ T1959] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.479254][ T1959] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.479262][ T1959] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.479265][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479266][ T1959] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.479270][ T1959] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.479274][ T1959] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.479276][ T1959] ? 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)) [ 26.479279][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479281][ T1959] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.479285][ T1959] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.479289][ T1959] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.479291][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.479296][ T1959] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.479299][ T1959] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.479301][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479302][ T1959] ? 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) [ 26.479306][ T1959] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.479308][ T1959] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.479311][ T1959] vprintk_emit (kernel/printk/printk.c:2479) [ 26.479314][ T1959] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.479316][ T1959] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.479318][ T1959] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.479322][ T1959] _printk (kernel/printk/printk.c:2504) [ 26.479326][ T1959] ? snapshot_read.cold (user.c:?) [ 26.479331][ T1959] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.479335][ T1959] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 26.479340][ T1959] br_init_port (net/bridge/br_stp_if.c:39) [ 26.479342][ T1959] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 26.479344][ T1959] br_device_event (net/bridge/br.c:120) [ 26.479347][ T1959] ? packet_sendmsg_spkt (af_packet.c:?) [ 26.479348][ T1959] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 26.479355][ T1959] notifier_call_chain (kernel/notifier.c:85) [ 26.479360][ T1959] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 26.479365][ T1959] ? netif_change_name (net/core/dev.c:1517) [ 26.479369][ T1959] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 26.479371][ T1959] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 26.479374][ T1959] ? __kernel_text_address (kernel/extable.c:79) [ 26.479376][ T1959] ? write_profile (profile.c:?) [ 26.479381][ T1959] netif_change_flags (net/core/dev.c:9882) [ 26.479385][ T1959] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 26.479388][ T1959] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.479390][ T1959] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.479392][ T1959] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.479393][ T1959] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.479397][ T1959] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.479399][ T1959] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.479400][ T1959] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.479403][ T1959] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.479405][ T1959] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.479406][ T1959] ? kasan_save_track (mm/kasan/common.c:78) [ 26.479407][ T1959] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 26.479410][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.479412][ T1959] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 26.479415][ T1959] ? ___sys_sendmsg (net/socket.c:2758) [ 26.479419][ T1959] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.479421][ T1959] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.479423][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479425][ T1959] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.479426][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479427][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479429][ T1959] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.479432][ T1959] ? __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) [ 26.479434][ T1959] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.479436][ T1959] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.479439][ T1959] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.479443][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479445][ T1959] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.479450][ T1959] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.479456][ T1959] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.479458][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.479462][ T1959] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.479464][ T1959] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.479466][ T1959] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.479468][ T1959] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.479472][ T1959] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.479474][ T1959] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.479477][ T1959] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.479478][ T1959] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.479483][ T1959] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.479485][ T1959] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.479488][ T1959] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.479490][ T1959] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.479493][ T1959] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.479499][ T1959] ? 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)) [ 26.479502][ T1959] ? 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)) [ 26.479506][ T1959] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.479510][ T1959] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.479513][ T1959] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.479517][ T1959] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.479521][ T1959] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.479525][ T1959] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.479526][ T1959] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.479532][ T1959] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.479534][ T1959] ____sys_sendmsg (net/socket.c:2713) [ 26.479537][ T1959] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.479539][ T1959] ? sock_write_iter (net/socket.c:1269) [ 26.479540][ T1959] ? move_addr_to_kernel (net/socket.c:258) [ 26.479548][ T1959] ___sys_sendmsg (net/socket.c:2767) [ 26.479550][ T1959] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.479566][ T1959] __sys_sendmsg (net/socket.c:2799) [ 26.479569][ T1959] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.479575][ T1959] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.479578][ T1959] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.479581][ T1959] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.479584][ T1959] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.479586][ T1959] RIP: 0033:0x7f4ff8b8854e [ 26.479588][ T1959] 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 [ 26.479590][ T1959] RSP: 002b:00007fff8a12e450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.479593][ T1959] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4ff8b8854e [ 26.479594][ T1959] RDX: 0000000000000000 RSI: 00007fff8a12e500 RDI: 0000000000000005 [ 26.479595][ T1959] RBP: 00007fff8a12e460 R08: 0000000000000000 R09: 0000000000000000 [ 26.479596][ T1959] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917010 [ 26.479597][ T1959] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff8a12ebc0 | [ 27.974813][ T519] softirqs last disabled at (218080): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 27.974815][ T519] Preemption disabled at: | [ 27.974816][ T519] 0x0 | [ 27.974826][ T519] Tainted: [W]=WARN [ 27.974827][ T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.974828][ T519] Workqueue: events_unbound linkwatch_event [ 27.974831][ T519] Call Trace: [ 27.974833][ T519] [ 27.974834][ T519] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.974841][ T519] __might_resched.cold (kernel/sched/core.c:9234) [ 27.974845][ T519] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.974849][ T519] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 27.974854][ T519] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 27.974856][ T519] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.974862][ T519] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 27.974865][ T519] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.974869][ T519] put_chars (drivers/char/virtio_console.c:1176) [ 27.974872][ T519] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.974874][ T519] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.974877][ T519] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.974880][ T519] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 27.974884][ T519] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.974888][ T519] ? mark_usage (kernel/locking/lockdep.c:4690) [ 27.974890][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.974892][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.974896][ T519] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.974898][ T519] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.974902][ T519] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.974906][ T519] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.974910][ T519] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.974912][ T519] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 27.974915][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.974918][ T519] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.974925][ T519] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.974930][ T519] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.974932][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.974937][ T519] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.974940][ T519] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.974942][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.974944][ T519] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 27.974947][ T519] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.974949][ T519] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.974952][ T519] vprintk_emit (kernel/printk/printk.c:2479) [ 27.974955][ T519] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.974957][ T519] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.974959][ T519] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.974963][ T519] _printk (kernel/printk/printk.c:2504) [ 27.974967][ T519] ? snapshot_read.cold (user.c:?) [ 27.974972][ T519] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.974976][ T519] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 27.974980][ T519] br_init_port (net/bridge/br_stp_if.c:39) [ 27.974983][ T519] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 27.974985][ T519] br_port_carrier_check (net/bridge/br_if.c:90) [ 27.974988][ T519] br_device_event (net/bridge/br.c:101) [ 27.974992][ T519] ? packet_sendmsg_spkt (af_packet.c:?) [ 27.974993][ T519] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 27.975000][ T519] notifier_call_chain (kernel/notifier.c:85) [ 27.975006][ T519] netif_state_change (net/core/dev.c:1625) [ 27.975010][ T519] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 27.975015][ T519] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 27.975017][ T519] __linkwatch_run_queue (net/core/link_watch.c:240) [ 27.975020][ T519] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 27.975023][ T519] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.975028][ T519] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 27.975030][ T519] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 27.975033][ T519] process_one_work (kernel/workqueue.c:3387) [ 27.975040][ T519] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 27.975043][ T519] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.975050][ T519] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 27.975055][ T519] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 27.975057][ T519] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 27.975060][ T519] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 27.975063][ T519] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 27.975065][ T519] kthread (kernel/kthread.c:436) [ 27.975067][ T519] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 27.975070][ T519] ? kthread_affine_preferred (kernel/kthread.c:857) [ 27.975073][ T519] ret_from_fork (arch/x86/kernel/process.c:158) [ 27.975077][ T519] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 27.975081][ T519] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 27.975084][ T519] ? kthread_affine_preferred (kernel/kthread.c:857) [ 27.975087][ T519] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 29.190894][ T36] softirqs last disabled at (155340): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 29.190896][ T36] Preemption disabled at: | [ 29.190897][ T36] 0x0 | [ 29.190907][ T36] Tainted: [W]=WARN [ 29.190908][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.190909][ T36] Workqueue: events_unbound linkwatch_event [ 29.190912][ T36] Call Trace: [ 29.190914][ T36] [ 29.190915][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.190921][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 29.190926][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.190930][ T36] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 29.190938][ T36] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 29.190940][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.190947][ T36] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 29.190950][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.190954][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 29.190956][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.190959][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.190962][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.190964][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.190969][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.190973][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 29.190975][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.190976][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.190981][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.190982][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.190987][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.190991][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.190995][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.190997][ T36] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 29.191000][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.191002][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.191006][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.191010][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.191012][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.191018][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.191021][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.191022][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.191024][ T36] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 29.191028][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.191030][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.191033][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 29.191036][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.191038][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.191040][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.191043][ T36] _printk (kernel/printk/printk.c:2504) [ 29.191047][ T36] ? snapshot_read.cold (user.c:?) [ 29.191052][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.191056][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 29.191060][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 29.191063][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 29.191065][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 29.191068][ T36] br_device_event (net/bridge/br.c:101) [ 29.191072][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 29.191073][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 29.191080][ T36] notifier_call_chain (kernel/notifier.c:85) [ 29.191086][ T36] netif_state_change (net/core/dev.c:1625) [ 29.191091][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 29.191095][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 29.191098][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 29.191101][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 29.191103][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.191107][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 29.191110][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 29.191113][ T36] process_one_work (kernel/workqueue.c:3387) [ 29.191120][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 29.191123][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.191130][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 29.191137][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 29.191140][ T36] kthread (kernel/kthread.c:436) [ 29.191142][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 29.191145][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 29.191148][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 29.191152][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 29.191155][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 29.191159][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 29.191162][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 30.471412][ T2353] softirqs last disabled at (15800): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 30.471414][ T2353] Preemption disabled at: | [ 30.471415][ T2353] 0x0 | [ 30.471425][ T2353] Tainted: [W]=WARN [ 30.471426][ T2353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.471427][ T2353] Call Trace: [ 30.471429][ T2353] [ 30.471430][ T2353] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.471437][ T2353] __might_resched.cold (kernel/sched/core.c:9234) [ 30.471441][ T2353] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.471446][ T2353] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.471450][ T2353] __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)) [ 30.471451][ T2353] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.471458][ T2353] ? 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) [ 30.471461][ T2353] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.471464][ T2353] put_chars (drivers/char/virtio_console.c:1176) [ 30.471467][ T2353] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.471468][ T2353] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.471471][ T2353] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.471477][ T2353] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.471484][ T2353] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.471487][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471489][ T2353] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.471493][ T2353] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.471496][ T2353] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.471498][ T2353] ? 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)) [ 30.471501][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471503][ T2353] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.471507][ T2353] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.471511][ T2353] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.471513][ T2353] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.471519][ T2353] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.471521][ T2353] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.471523][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471525][ T2353] ? 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) [ 30.471528][ T2353] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.471530][ T2353] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.471533][ T2353] vprintk_emit (kernel/printk/printk.c:2479) [ 30.471536][ T2353] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.471538][ T2353] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.471540][ T2353] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.471545][ T2353] _printk (kernel/printk/printk.c:2504) [ 30.471548][ T2353] ? snapshot_read.cold (user.c:?) [ 30.471553][ T2353] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.471557][ T2353] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 30.471562][ T2353] br_init_port (net/bridge/br_stp_if.c:39) [ 30.471564][ T2353] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 30.471566][ T2353] br_device_event (net/bridge/br.c:120) [ 30.471569][ T2353] ? packet_sendmsg_spkt (af_packet.c:?) [ 30.471570][ T2353] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 30.471577][ T2353] notifier_call_chain (kernel/notifier.c:85) [ 30.471582][ T2353] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 30.471587][ T2353] ? netif_change_name (net/core/dev.c:1517) [ 30.471591][ T2353] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 30.471594][ T2353] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 30.471597][ T2353] ? __kernel_text_address (kernel/extable.c:79) [ 30.471598][ T2353] ? write_profile (profile.c:?) [ 30.471603][ T2353] netif_change_flags (net/core/dev.c:9882) [ 30.471607][ T2353] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 30.471610][ T2353] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 30.471612][ T2353] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 30.471613][ T2353] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 30.471615][ T2353] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 30.471619][ T2353] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.471621][ T2353] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.471622][ T2353] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.471625][ T2353] ? kasan_save_stack (mm/kasan/common.c:58) [ 30.471627][ T2353] ? kasan_save_stack (mm/kasan/common.c:57) [ 30.471629][ T2353] ? kasan_save_track (mm/kasan/common.c:78) [ 30.471630][ T2353] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 30.471632][ T2353] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.471634][ T2353] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 30.471637][ T2353] ? ___sys_sendmsg (net/socket.c:2758) [ 30.471641][ T2353] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.471643][ T2353] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.471645][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471647][ T2353] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.471649][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471650][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471651][ T2353] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 30.471654][ T2353] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 30.471656][ T2353] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 30.471658][ T2353] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.471661][ T2353] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 30.471665][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471667][ T2353] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 30.471672][ T2353] rtnl_newlink (net/core/rtnetlink.c:4215) [ 30.471677][ T2353] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.471679][ T2353] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.471684][ T2353] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.471686][ T2353] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.471688][ T2353] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.471690][ T2353] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.471694][ T2353] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.471696][ T2353] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 30.471699][ T2353] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.471700][ T2353] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.471704][ T2353] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.471706][ T2353] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.471710][ T2353] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 30.471712][ T2353] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.471714][ T2353] ? netlink_ack (./include/linux/skbuff.h:2718) [ 30.471721][ T2353] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 30.471723][ T2353] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 30.471727][ T2353] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 30.471731][ T2353] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 30.471734][ T2353] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.471738][ T2353] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 30.471742][ T2353] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 30.471746][ T2353] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.471747][ T2353] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 30.471753][ T2353] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 30.471755][ T2353] ____sys_sendmsg (net/socket.c:2713) [ 30.471758][ T2353] ? copy_msghdr_from_user (net/socket.c:2650) [ 30.471760][ T2353] ? sock_write_iter (net/socket.c:1269) [ 30.471761][ T2353] ? move_addr_to_kernel (net/socket.c:258) [ 30.471771][ T2353] ___sys_sendmsg (net/socket.c:2767) [ 30.471774][ T2353] ? copy_msghdr_from_user (net/socket.c:2619) [ 30.471790][ T2353] __sys_sendmsg (net/socket.c:2799) [ 30.471792][ T2353] ? __sys_sendmsg_sock (net/socket.c:2780) [ 30.471799][ T2353] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.471802][ T2353] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.471804][ T2353] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.471807][ T2353] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.471810][ T2353] RIP: 0033:0x7f7c02e0954e [ 30.471812][ T2353] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 30.471814][ T2353] RSP: 002b:00007ffc5f13c640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 30.471816][ T2353] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7c02e0954e [ 30.471817][ T2353] RDX: 0000000000000000 RSI: 00007ffc5f13c6f0 RDI: 0000000000000005 [ 30.471818][ T2353] RBP: 00007ffc5f13c650 R08: 0000000000000000 R09: 0000000000000000 [ 30.471819][ T2353] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917014 [ 30.471820][ T2353] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc5f13cdb0 | [ 32.012609][ T2487] softirqs last disabled at (29538): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 32.012612][ T2487] Preemption disabled at: | [ 32.012612][ T2487] 0x0 | [ 32.012623][ T2487] Tainted: [W]=WARN [ 32.012623][ T2487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.012625][ T2487] Call Trace: [ 32.012626][ T2487] [ 32.012628][ T2487] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 32.012634][ T2487] __might_resched.cold (kernel/sched/core.c:9234) [ 32.012639][ T2487] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 32.012643][ T2487] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 32.012647][ T2487] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 32.012649][ T2487] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 32.012656][ T2487] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 32.012658][ T2487] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 32.012662][ T2487] put_chars (drivers/char/virtio_console.c:1176) [ 32.012665][ T2487] ? __send_to_port (drivers/char/virtio_console.c:654) [ 32.012671][ T2487] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 32.012679][ T2487] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 32.012682][ T2487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.012686][ T2487] console_emit_next_record (kernel/printk/printk.c:3183) [ 32.012690][ T2487] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 32.012692][ T2487] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 32.012695][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.012698][ T2487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.012702][ T2487] console_flush_one_record (kernel/printk/printk.c:3268) [ 32.012706][ T2487] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 32.012708][ T2487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.012713][ T2487] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 32.012716][ T2487] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 32.012718][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.012719][ T2487] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 32.012723][ T2487] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 32.012725][ T2487] ? vprintk_emit (kernel/printk/printk.c:2478) [ 32.012728][ T2487] vprintk_emit (kernel/printk/printk.c:2479) [ 32.012731][ T2487] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 32.012732][ T2487] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 32.012734][ T2487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.012736][ T2487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 32.012740][ T2487] _printk (kernel/printk/printk.c:2504) [ 32.012744][ T2487] ? snapshot_read.cold (user.c:?) [ 32.012751][ T2487] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 32.012756][ T2487] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 32.012759][ T2487] br_device_event (net/bridge/br.c:111) [ 32.012761][ T2487] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 32.012765][ T2487] ? packet_sendmsg_spkt (af_packet.c:?) [ 32.012773][ T2487] notifier_call_chain (kernel/notifier.c:85) [ 32.012778][ T2487] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 32.012783][ T2487] ? netif_change_name (net/core/dev.c:1517) [ 32.012787][ T2487] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 32.012790][ T2487] ? __kernel_text_address (kernel/extable.c:79) [ 32.012793][ T2487] ? write_profile (profile.c:?) [ 32.012797][ T2487] netif_change_flags (net/core/dev.c:9882) [ 32.012801][ T2487] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 32.012805][ T2487] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 32.012807][ T2487] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 32.012808][ T2487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 32.012810][ T2487] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 32.012813][ T2487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.012815][ T2487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 32.012817][ T2487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 32.012819][ T2487] ? kasan_save_stack (mm/kasan/common.c:58) [ 32.012822][ T2487] ? kasan_save_stack (mm/kasan/common.c:57) [ 32.012823][ T2487] ? kasan_save_track (mm/kasan/common.c:78) [ 32.012824][ T2487] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 32.012826][ T2487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.012828][ T2487] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 32.012831][ T2487] ? ___sys_sendmsg (net/socket.c:2758) [ 32.012835][ T2487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.012837][ T2487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 32.012839][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.012841][ T2487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.012843][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.012844][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.012845][ T2487] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 32.012848][ T2487] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 32.012849][ T2487] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 32.012851][ T2487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 32.012854][ T2487] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 32.012858][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.012860][ T2487] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 32.012865][ T2487] rtnl_newlink (net/core/rtnetlink.c:4215) [ 32.012870][ T2487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.012872][ T2487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.012876][ T2487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.012878][ T2487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.012880][ T2487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.012882][ T2487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 32.012886][ T2487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.012888][ T2487] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 32.012891][ T2487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 32.012892][ T2487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.012897][ T2487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.012898][ T2487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.012902][ T2487] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 32.012905][ T2487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 32.012908][ T2487] ? netlink_ack (./include/linux/skbuff.h:2718) [ 32.012914][ T2487] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 32.012916][ T2487] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 32.012921][ T2487] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 32.012925][ T2487] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 32.012927][ T2487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.012931][ T2487] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 32.012935][ T2487] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 32.012939][ T2487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 32.012941][ T2487] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 32.012946][ T2487] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 32.012949][ T2487] ____sys_sendmsg (net/socket.c:2713) [ 32.012951][ T2487] ? copy_msghdr_from_user (net/socket.c:2650) [ 32.012953][ T2487] ? sock_write_iter (net/socket.c:1269) [ 32.012955][ T2487] ? move_addr_to_kernel (net/socket.c:258) [ 32.012966][ T2487] ___sys_sendmsg (net/socket.c:2767) [ 32.012969][ T2487] ? copy_msghdr_from_user (net/socket.c:2619) [ 32.012985][ T2487] __sys_sendmsg (net/socket.c:2799) [ 32.012987][ T2487] ? __sys_sendmsg_sock (net/socket.c:2780) [ 32.012994][ T2487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.012997][ T2487] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 32.012999][ T2487] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 32.013002][ T2487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 32.013004][ T2487] RIP: 0033:0x7fb73207354e [ 32.013007][ T2487] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 32.013008][ T2487] RSP: 002b:00007ffd06797a30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 32.013011][ T2487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb73207354e [ 32.013012][ T2487] RDX: 0000000000000000 RSI: 00007ffd06797ae0 RDI: 0000000000000005 [ 32.013013][ T2487] RBP: 00007ffd06797a40 R08: 0000000000000000 R09: 0000000000000000 [ 32.013014][ T2487] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917016 [ 32.013015][ T2487] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd067981a0 | [ 33.189136][ T1494] softirqs last disabled at (95390): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 33.189138][ T1494] Preemption disabled at: | [ 33.189139][ T1494] 0x0 | [ 33.189149][ T1494] Tainted: [W]=WARN [ 33.189150][ T1494] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.189151][ T1494] Workqueue: events_unbound linkwatch_event [ 33.189155][ T1494] Call Trace: [ 33.189156][ T1494] [ 33.189158][ T1494] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.189164][ T1494] __might_resched.cold (kernel/sched/core.c:9234) [ 33.189169][ T1494] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.189173][ T1494] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 33.189177][ T1494] __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)) [ 33.189179][ T1494] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.189186][ T1494] ? 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) [ 33.189188][ T1494] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.189192][ T1494] put_chars (drivers/char/virtio_console.c:1176) [ 33.189195][ T1494] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.189197][ T1494] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.189200][ T1494] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.189203][ T1494] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.189207][ T1494] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.189211][ T1494] ? mark_usage (kernel/locking/lockdep.c:4690) [ 33.189213][ T1494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.189215][ T1494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.189219][ T1494] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.189221][ T1494] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.189225][ T1494] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.189229][ T1494] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.189233][ T1494] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.189235][ T1494] ? 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)) [ 33.189239][ T1494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.189241][ T1494] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.189245][ T1494] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.189249][ T1494] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.189251][ T1494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.189256][ T1494] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.189259][ T1494] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.189261][ T1494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.189262][ T1494] ? 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) [ 33.189266][ T1494] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.189268][ T1494] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.189271][ T1494] vprintk_emit (kernel/printk/printk.c:2479) [ 33.189274][ T1494] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.189276][ T1494] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.189278][ T1494] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.189282][ T1494] _printk (kernel/printk/printk.c:2504) [ 33.189285][ T1494] ? snapshot_read.cold (user.c:?) [ 33.189290][ T1494] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.189294][ T1494] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 33.189298][ T1494] br_init_port (net/bridge/br_stp_if.c:39) [ 33.189301][ T1494] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 33.189303][ T1494] br_port_carrier_check (net/bridge/br_if.c:90) [ 33.189307][ T1494] br_device_event (net/bridge/br.c:101) [ 33.189310][ T1494] ? packet_sendmsg_spkt (af_packet.c:?) [ 33.189312][ T1494] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 33.189319][ T1494] notifier_call_chain (kernel/notifier.c:85) [ 33.189325][ T1494] netif_state_change (net/core/dev.c:1625) [ 33.189329][ T1494] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 33.189334][ T1494] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 33.189336][ T1494] __linkwatch_run_queue (net/core/link_watch.c:240) [ 33.189339][ T1494] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 33.189342][ T1494] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.189346][ T1494] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 33.189348][ T1494] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 33.189352][ T1494] process_one_work (kernel/workqueue.c:3387) [ 33.189358][ T1494] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 33.189361][ T1494] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.189369][ T1494] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 33.189373][ T1494] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.189375][ T1494] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 33.189378][ T1494] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.189380][ T1494] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.189382][ T1494] kthread (kernel/kthread.c:436) [ 33.189385][ T1494] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 33.189388][ T1494] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.189391][ T1494] ret_from_fork (arch/x86/kernel/process.c:158) [ 33.189395][ T1494] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 33.189398][ T1494] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 33.189402][ T1494] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.189405][ T1494] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 34.663440][ T2741] softirqs last disabled at (12072): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 34.663443][ T2741] Preemption disabled at: | [ 34.663443][ T2741] 0x0 | [ 34.663453][ T2741] Tainted: [W]=WARN [ 34.663454][ T2741] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.663456][ T2741] Call Trace: [ 34.663457][ T2741] [ 34.663458][ T2741] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.663465][ T2741] __might_resched.cold (kernel/sched/core.c:9234) [ 34.663469][ T2741] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.663474][ T2741] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.663478][ T2741] __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)) [ 34.663480][ T2741] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.663486][ T2741] ? 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) [ 34.663489][ T2741] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.663493][ T2741] put_chars (drivers/char/virtio_console.c:1176) [ 34.663495][ T2741] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.663496][ T2741] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.663500][ T2741] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.663505][ T2741] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.663513][ T2741] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.663515][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663517][ T2741] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.663521][ T2741] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.663525][ T2741] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.663527][ T2741] ? 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)) [ 34.663530][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663532][ T2741] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.663536][ T2741] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.663540][ T2741] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.663542][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.663547][ T2741] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.663550][ T2741] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.663551][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663553][ T2741] ? 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) [ 34.663557][ T2741] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.663559][ T2741] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.663561][ T2741] vprintk_emit (kernel/printk/printk.c:2479) [ 34.663564][ T2741] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.663566][ T2741] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.663568][ T2741] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.663573][ T2741] _printk (kernel/printk/printk.c:2504) [ 34.663577][ T2741] ? snapshot_read.cold (user.c:?) [ 34.663582][ T2741] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.663586][ T2741] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.663590][ T2741] br_init_port (net/bridge/br_stp_if.c:39) [ 34.663593][ T2741] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 34.663594][ T2741] br_device_event (net/bridge/br.c:120) [ 34.663597][ T2741] ? packet_sendmsg_spkt (af_packet.c:?) [ 34.663599][ T2741] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 34.663605][ T2741] notifier_call_chain (kernel/notifier.c:85) [ 34.663611][ T2741] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 34.663616][ T2741] ? netif_change_name (net/core/dev.c:1517) [ 34.663620][ T2741] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 34.663622][ T2741] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 34.663625][ T2741] ? __kernel_text_address (kernel/extable.c:79) [ 34.663626][ T2741] ? write_profile (profile.c:?) [ 34.663632][ T2741] netif_change_flags (net/core/dev.c:9882) [ 34.663635][ T2741] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 34.663639][ T2741] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 34.663641][ T2741] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 34.663642][ T2741] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 34.663644][ T2741] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 34.663647][ T2741] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.663649][ T2741] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.663651][ T2741] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.663653][ T2741] ? kasan_save_stack (mm/kasan/common.c:58) [ 34.663655][ T2741] ? kasan_save_stack (mm/kasan/common.c:57) [ 34.663656][ T2741] ? kasan_save_track (mm/kasan/common.c:78) [ 34.663658][ T2741] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 34.663660][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.663662][ T2741] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 34.663665][ T2741] ? ___sys_sendmsg (net/socket.c:2758) [ 34.663669][ T2741] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.663671][ T2741] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.663673][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663675][ T2741] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.663676][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663677][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663679][ T2741] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 34.663681][ T2741] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 34.663684][ T2741] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 34.663686][ T2741] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.663689][ T2741] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 34.663693][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663695][ T2741] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 34.663700][ T2741] rtnl_newlink (net/core/rtnetlink.c:4215) [ 34.663705][ T2741] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.663707][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.663711][ T2741] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.663713][ T2741] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.663716][ T2741] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.663717][ T2741] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.663721][ T2741] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.663723][ T2741] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 34.663726][ T2741] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.663728][ T2741] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.663732][ T2741] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.663734][ T2741] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.663737][ T2741] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 34.663739][ T2741] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.663742][ T2741] ? netlink_ack (./include/linux/skbuff.h:2718) [ 34.663748][ T2741] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 34.663751][ T2741] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 34.663755][ T2741] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 34.663759][ T2741] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.663761][ T2741] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.663766][ T2741] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 34.663772][ T2741] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.663776][ T2741] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.663777][ T2741] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 34.663783][ T2741] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 34.663785][ T2741] ____sys_sendmsg (net/socket.c:2713) [ 34.663787][ T2741] ? copy_msghdr_from_user (net/socket.c:2650) [ 34.663790][ T2741] ? sock_write_iter (net/socket.c:1269) [ 34.663791][ T2741] ? move_addr_to_kernel (net/socket.c:258) [ 34.663799][ T2741] ___sys_sendmsg (net/socket.c:2767) [ 34.663801][ T2741] ? copy_msghdr_from_user (net/socket.c:2619) [ 34.663817][ T2741] __sys_sendmsg (net/socket.c:2799) [ 34.663820][ T2741] ? __sys_sendmsg_sock (net/socket.c:2780) [ 34.663826][ T2741] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.663829][ T2741] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 34.663832][ T2741] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 34.663834][ T2741] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 34.663836][ T2741] RIP: 0033:0x7f895642a54e [ 34.663838][ T2741] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 34.663840][ T2741] RSP: 002b:00007ffe1b13cc30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 34.663843][ T2741] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f895642a54e [ 34.663844][ T2741] RDX: 0000000000000000 RSI: 00007ffe1b13cce0 RDI: 0000000000000005 [ 34.663845][ T2741] RBP: 00007ffe1b13cc40 R08: 0000000000000000 R09: 0000000000000000 [ 34.663846][ T2741] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917018 [ 34.663846][ T2741] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe1b13d3a0 | [ 35.690921][ T2806] softirqs last disabled at (12648): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 35.690924][ T2806] Preemption disabled at: | [ 35.690924][ T2806] vprintk_emit (kernel/printk/printk.c:2471) | [ 35.690932][ T2806] Tainted: [W]=WARN [ 35.690933][ T2806] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 35.690935][ T2806] Call Trace: [ 35.690936][ T2806] [ 35.690938][ T2806] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 35.690943][ T2806] ? vprintk_emit (kernel/printk/printk.c:2471) [ 35.690945][ T2806] __might_resched.cold (kernel/sched/core.c:9234) [ 35.690949][ T2806] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 35.690954][ T2806] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 35.690958][ T2806] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 35.690960][ T2806] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 35.690966][ T2806] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 35.690969][ T2806] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 35.690972][ T2806] put_chars (drivers/char/virtio_console.c:1176) [ 35.690975][ T2806] ? __send_to_port (drivers/char/virtio_console.c:654) [ 35.690977][ T2806] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 35.690982][ T2806] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 35.690990][ T2806] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 35.690993][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691001][ T2806] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 35.691005][ T2806] console_emit_next_record (kernel/printk/printk.c:3183) [ 35.691009][ T2806] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 35.691011][ T2806] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 35.691014][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691016][ T2806] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 35.691020][ T2806] console_flush_one_record (kernel/printk/printk.c:3268) [ 35.691024][ T2806] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 35.691025][ T2806] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.691031][ T2806] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 35.691033][ T2806] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 35.691035][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691037][ T2806] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 35.691040][ T2806] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 35.691042][ T2806] ? vprintk_emit (kernel/printk/printk.c:2478) [ 35.691045][ T2806] vprintk_emit (kernel/printk/printk.c:2479) [ 35.691048][ T2806] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 35.691049][ T2806] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 35.691051][ T2806] ? netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 35.691054][ T2806] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 35.691055][ T2806] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 35.691057][ T2806] ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 35.691059][ T2806] ? ____sys_sendmsg (net/socket.c:2713) [ 35.691061][ T2806] ? ___sys_sendmsg (net/socket.c:2767) [ 35.691064][ T2806] _printk (kernel/printk/printk.c:2504) [ 35.691068][ T2806] ? snapshot_read.cold (user.c:?) [ 35.691072][ T2806] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 35.691076][ T2806] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 35.691079][ T2806] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 35.691082][ T2806] ? netdev_notice (net/core/dev.c:13194) [ 35.691086][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691088][ T2806] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 35.691090][ T2806] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 35.691092][ T2806] ? 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) [ 35.691094][ T2806] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 35.691098][ T2806] dev_set_allmulti (net/core/dev_api.c:315) [ 35.691102][ T2806] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 35.691108][ T2806] br_del_if (net/bridge/br_if.c:732) [ 35.691110][ T2806] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 35.691113][ T2806] do_set_master (net/core/rtnetlink.c:3055) [ 35.691116][ T2806] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 35.691120][ T2806] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 35.691123][ T2806] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 35.691124][ T2806] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 35.691127][ T2806] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 35.691130][ T2806] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 35.691132][ T2806] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 35.691134][ T2806] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 35.691136][ T2806] ? kasan_save_stack (mm/kasan/common.c:58) [ 35.691139][ T2806] ? kasan_save_stack (mm/kasan/common.c:57) [ 35.691140][ T2806] ? kasan_save_track (mm/kasan/common.c:78) [ 35.691141][ T2806] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 35.691144][ T2806] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.691145][ T2806] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 35.691148][ T2806] ? ___sys_sendmsg (net/socket.c:2758) [ 35.691151][ T2806] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.691153][ T2806] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 35.691156][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691157][ T2806] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 35.691159][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691160][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691162][ T2806] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 35.691164][ T2806] ? __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) [ 35.691166][ T2806] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 35.691168][ T2806] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 35.691171][ T2806] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 35.691173][ T2806] ? nla_get_range_signed (lib/nlattr.c:270) [ 35.691177][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691180][ T2806] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 35.691185][ T2806] rtnl_newlink (net/core/rtnetlink.c:4215) [ 35.691190][ T2806] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 35.691192][ T2806] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.691196][ T2806] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.691198][ T2806] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 35.691200][ T2806] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 35.691202][ T2806] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 35.691205][ T2806] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 35.691207][ T2806] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 35.691210][ T2806] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 35.691212][ T2806] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.691216][ T2806] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.691218][ T2806] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 35.691221][ T2806] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 35.691223][ T2806] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 35.691226][ T2806] ? netlink_ack (./include/linux/skbuff.h:2718) [ 35.691232][ T2806] ? 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)) [ 35.691234][ T2806] ? 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)) [ 35.691238][ T2806] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 35.691242][ T2806] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 35.691245][ T2806] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 35.691249][ T2806] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 35.691253][ T2806] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 35.691256][ T2806] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 35.691258][ T2806] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 35.691263][ T2806] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 35.691266][ T2806] ____sys_sendmsg (net/socket.c:2713) [ 35.691268][ T2806] ? copy_msghdr_from_user (net/socket.c:2650) [ 35.691270][ T2806] ? sock_write_iter (net/socket.c:1269) [ 35.691272][ T2806] ? move_addr_to_kernel (net/socket.c:258) [ 35.691279][ T2806] ___sys_sendmsg (net/socket.c:2767) [ 35.691282][ T2806] ? copy_msghdr_from_user (net/socket.c:2619) [ 35.691297][ T2806] __sys_sendmsg (net/socket.c:2799) [ 35.691299][ T2806] ? __sys_sendmsg_sock (net/socket.c:2780) [ 35.691305][ T2806] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.691308][ T2806] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 35.691311][ T2806] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 35.691314][ T2806] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 35.691316][ T2806] RIP: 0033:0x7ff38a59d54e [ 35.691320][ T2806] 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 [ 35.691322][ T2806] RSP: 002b:00007ffc3b3818a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 35.691324][ T2806] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff38a59d54e [ 35.691326][ T2806] RDX: 0000000000000000 RSI: 00007ffc3b381950 RDI: 0000000000000005 [ 35.691327][ T2806] RBP: 00007ffc3b3818b0 R08: 0000000000000000 R09: 0000000000000000 [ 35.691327][ T2806] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917019 Finger prints: netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars