====================================== | [ 9.887605][ T191] softirqs last disabled at (26333): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.887608][ T191] Preemption disabled at: | [ 9.887608][ T191] 0x0 | [ 9.887618][ T191] Tainted: [W]=WARN [ 9.887619][ T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.887621][ T191] Call Trace: [ 9.887623][ T191] [ 9.887624][ T191] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.887631][ T191] __might_resched.cold (kernel/sched/core.c:9234) [ 9.887636][ T191] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.887640][ T191] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.887645][ T191] __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)) [ 9.887648][ T191] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.887654][ T191] ? 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) [ 9.887657][ T191] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.887660][ T191] put_chars (drivers/char/virtio_console.c:1176) [ 9.887662][ T191] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.887664][ T191] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.887669][ T191] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.887674][ T191] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.887680][ T191] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.887682][ T191] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.887685][ T191] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.887689][ T191] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.887693][ T191] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.887694][ T191] ? 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)) [ 9.887698][ T191] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.887700][ T191] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.887704][ T191] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.887708][ T191] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.887710][ T191] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.887715][ T191] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.887718][ T191] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.887720][ T191] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.887722][ T191] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.887726][ T191] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.887728][ T191] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.887731][ T191] vprintk_emit (kernel/printk/printk.c:2479) [ 9.887735][ T191] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.887739][ T191] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.887742][ T191] _printk (kernel/printk/printk.c:2504) [ 9.887746][ T191] ? snapshot_read.cold (user.c:?) [ 9.887749][ T191] ? 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) [ 9.887752][ T191] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.887756][ T191] ? 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) [ 9.887758][ T191] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.887762][ T191] ? exit_notify (kernel/exit.c:780) [ 9.887764][ T191] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.887767][ T191] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.887776][ T191] do_group_exit (kernel/exit.c:1151) [ 9.887779][ T191] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.887781][ T191] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.887783][ T191] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.887788][ T191] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.887792][ T191] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.887794][ T191] RIP: 0033:0x7f7064db81b8 [ 9.887797][ T191] Code: Unable to access opcode bytes at 0x7f7064db818e. Code starting with the faulting instruction =========================================== [ 9.887798][ T191] RSP: 002b:00007ffe1146f3a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.887800][ T191] RAX: ffffffffffffffda RBX: 00007f7064ee8f88 RCX: 00007f7064db81b8 [ 9.887802][ T191] RDX: 00007f7064b02fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.887803][ T191] RBP: 00007ffe1146f400 R08: 0000000000000000 R09: 0000000000008010 [ 9.887804][ T191] R10: 00007ffe1146f1c0 R11: 0000000000000246 R12: 0000000000000001 [ 9.887804][ T191] R13: 0000000000000000 R14: 00007f7064ee7680 R15: 00007f7064ee8fa0 | [ 11.694032][ T263] softirqs last disabled at (23706): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.694034][ T263] Preemption disabled at: | [ 11.694035][ T263] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.694044][ T263] Tainted: [W]=WARN [ 11.694045][ T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.694047][ T263] Call Trace: [ 11.694048][ T263] [ 11.694050][ T263] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.694056][ T263] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.694058][ T263] __might_resched.cold (kernel/sched/core.c:9234) [ 11.694063][ T263] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.694068][ T263] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.694073][ T263] __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)) [ 11.694075][ T263] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.694081][ T263] ? 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) [ 11.694084][ T263] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.694086][ T263] put_chars (drivers/char/virtio_console.c:1176) [ 11.694089][ T263] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.694094][ T263] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.694097][ T263] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.694100][ T263] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.694102][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.694104][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.694107][ T263] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.694109][ T263] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 11.694113][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.694117][ T263] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.694121][ T263] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.694125][ T263] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.694126][ T263] ? 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)) [ 11.694129][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.694132][ T263] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.694136][ T263] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.694140][ T263] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.694142][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.694147][ T263] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.694149][ T263] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.694151][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.694154][ T263] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.694157][ T263] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.694159][ T263] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.694162][ T263] vprintk_emit (kernel/printk/printk.c:2479) [ 11.694166][ T263] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.694169][ T263] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.694170][ T263] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.694175][ T263] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.694178][ T263] _printk (kernel/printk/printk.c:2504) [ 11.694182][ T263] ? snapshot_read.cold (user.c:?) [ 11.694185][ T263] ? br_multicast_flood (??:?) bridge [ 11.694198][ T263] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.694200][ T263] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.694201][ T263] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.694205][ T263] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 11.694215][ T263] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 11.694223][ T263] new_nbp (net/bridge/br_if.c:449) bridge [ 11.694232][ T263] br_add_if (net/bridge/br_if.c:592) bridge [ 11.694239][ T263] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 11.694244][ T263] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 11.694247][ T263] ? __kernel_text_address (kernel/extable.c:79) [ 11.694250][ T263] do_set_master (net/core/rtnetlink.c:3071) [ 11.694255][ T263] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.694258][ T263] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.694262][ T263] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.694263][ T263] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.694265][ T263] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.694269][ T263] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.694271][ T263] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.694273][ T263] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.694276][ T263] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.694279][ T263] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.694280][ T263] ? kasan_save_track (mm/kasan/common.c:78) [ 11.694283][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.694285][ T263] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 11.694288][ T263] ? ___sys_sendmsg (net/socket.c:2757) [ 11.694292][ T263] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.694294][ T263] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.694297][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.694299][ T263] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.694301][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.694302][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.694305][ T263] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.694308][ T263] ? __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) [ 11.694310][ T263] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.694312][ T263] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.694316][ T263] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.694317][ T263] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.694322][ T263] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.694327][ T263] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.694332][ T263] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.694334][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.694338][ T263] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.694340][ T263] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.694342][ T263] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.694344][ T263] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.694347][ T263] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.694350][ T263] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.694353][ T263] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.694354][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.694358][ T263] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.694360][ T263] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.694363][ T263] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.694365][ T263] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.694368][ T263] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.694374][ T263] ? 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)) [ 11.694375][ T263] ? 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)) [ 11.694379][ T263] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.694383][ T263] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.694385][ T263] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.694389][ T263] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.694393][ T263] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.694397][ T263] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.694402][ T263] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 11.694405][ T263] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.694407][ T263] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 11.694408][ T263] ? move_addr_to_kernel (net/socket.c:258) [ 11.694415][ T263] ___sys_sendmsg (net/socket.c:2767) [ 11.694418][ T263] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.694433][ T263] __sys_sendmsg (net/socket.c:2799) [ 11.694436][ T263] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.694442][ T263] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.694446][ T263] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.694448][ T263] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.694451][ T263] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.694454][ T263] RIP: 0033:0x7f34c17ba54e [ 11.694457][ T263] 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 [ 11.694459][ T263] RSP: 002b:00007fffe1b75560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.694462][ T263] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f34c17ba54e [ 11.694463][ T263] RDX: 0000000000000000 RSI: 00007fffe1b75610 RDI: 0000000000000005 [ 11.694464][ T263] RBP: 00007fffe1b75570 R08: 0000000000000000 R09: 0000000000000000 [ 11.694465][ T263] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e74c [ 11.694465][ T263] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffe1b75cd0 | [ 13.068816][ T311] softirqs last disabled at (12510): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 13.068819][ T311] Preemption disabled at: | [ 13.068820][ T311] vprintk_emit (kernel/printk/printk.c:2471) | [ 13.068829][ T311] Tainted: [W]=WARN [ 13.068830][ T311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.068832][ T311] Call Trace: [ 13.068834][ T311] [ 13.068835][ T311] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.068841][ T311] ? vprintk_emit (kernel/printk/printk.c:2471) [ 13.068844][ T311] __might_resched.cold (kernel/sched/core.c:9234) [ 13.068849][ T311] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.068853][ T311] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.068859][ T311] __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)) [ 13.068861][ T311] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.068867][ T311] ? 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) [ 13.068870][ T311] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.068873][ T311] put_chars (drivers/char/virtio_console.c:1176) [ 13.068875][ T311] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 13.068877][ T311] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.068880][ T311] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.068885][ T311] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.068888][ T311] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.068891][ T311] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.068894][ T311] ? mark_usage (kernel/locking/lockdep.c:4690) [ 13.068896][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.068898][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.068902][ T311] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.068904][ T311] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 13.068907][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.068909][ T311] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.068914][ T311] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.068917][ T311] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.068919][ T311] ? 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)) [ 13.068922][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.068925][ T311] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.068929][ T311] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.068933][ T311] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.068935][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.068942][ T311] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.068944][ T311] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.068946][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.068949][ T311] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.068952][ T311] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.068954][ T311] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.068958][ T311] vprintk_emit (kernel/printk/printk.c:2479) [ 13.068962][ T311] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.068964][ T311] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.068967][ T311] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.068970][ T311] _printk (kernel/printk/printk.c:2504) [ 13.068975][ T311] ? snapshot_read.cold (user.c:?) [ 13.068979][ T311] ? br_multicast_flood (??:?) bridge [ 13.068992][ T311] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.068993][ T311] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.068994][ T311] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.068999][ T311] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 13.069010][ T311] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 13.069019][ T311] new_nbp (net/bridge/br_if.c:449) bridge [ 13.069029][ T311] br_add_if (net/bridge/br_if.c:592) bridge [ 13.069036][ T311] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 13.069041][ T311] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 13.069044][ T311] ? __kernel_text_address (kernel/extable.c:79) [ 13.069048][ T311] do_set_master (net/core/rtnetlink.c:3071) [ 13.069053][ T311] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.069056][ T311] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.069059][ T311] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.069061][ T311] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.069063][ T311] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.069066][ T311] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.069069][ T311] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.069071][ T311] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.069073][ T311] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.069077][ T311] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.069078][ T311] ? kasan_save_track (mm/kasan/common.c:78) [ 13.069081][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.069083][ T311] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 13.069086][ T311] ? ___sys_sendmsg (net/socket.c:2757) [ 13.069091][ T311] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.069093][ T311] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.069096][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.069098][ T311] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.069100][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.069102][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.069104][ T311] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.069108][ T311] ? __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) [ 13.069112][ T311] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.069114][ T311] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.069117][ T311] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.069119][ T311] ? nla_get_range_signed (lib/nlattr.c:270) [ 13.069124][ T311] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.069129][ T311] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.069135][ T311] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.069136][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.069141][ T311] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.069143][ T311] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.069145][ T311] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.069147][ T311] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.069150][ T311] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.069153][ T311] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.069156][ T311] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.069157][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.069161][ T311] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.069163][ T311] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.069167][ T311] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.069169][ T311] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.069172][ T311] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.069178][ T311] ? 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)) [ 13.069180][ T311] ? 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)) [ 13.069184][ T311] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.069188][ T311] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.069190][ T311] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.069195][ T311] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.069198][ T311] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.069202][ T311] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 13.069208][ T311] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 13.069211][ T311] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.069213][ T311] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 13.069215][ T311] ? move_addr_to_kernel (net/socket.c:258) [ 13.069222][ T311] ___sys_sendmsg (net/socket.c:2767) [ 13.069225][ T311] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.069241][ T311] __sys_sendmsg (net/socket.c:2799) [ 13.069244][ T311] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.069250][ T311] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.069254][ T311] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.069257][ T311] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.069260][ T311] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.069262][ T311] RIP: 0033:0x7f2af1ce854e [ 13.069266][ T311] 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 [ 13.069268][ T311] RSP: 002b:00007ffd9c15cdb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.069271][ T311] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2af1ce854e [ 13.069273][ T311] RDX: 0000000000000000 RSI: 00007ffd9c15ce60 RDI: 0000000000000005 [ 13.069273][ T311] RBP: 00007ffd9c15cdc0 R08: 0000000000000000 R09: 0000000000000000 [ 13.069274][ T311] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e74d [ 13.069275][ T311] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd9c15d520 | [ 14.112008][ T348] softirqs last disabled at (16944): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 14.112011][ T348] Preemption disabled at: | [ 14.112011][ T348] vprintk_emit (kernel/printk/printk.c:2471) | [ 14.112021][ T348] Tainted: [W]=WARN [ 14.112022][ T348] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.112024][ T348] Call Trace: [ 14.112026][ T348] [ 14.112027][ T348] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.112033][ T348] ? vprintk_emit (kernel/printk/printk.c:2471) [ 14.112036][ T348] __might_resched.cold (kernel/sched/core.c:9234) [ 14.112040][ T348] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.112045][ T348] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.112050][ T348] __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)) [ 14.112052][ T348] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.112058][ T348] ? 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) [ 14.112061][ T348] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.112064][ T348] put_chars (drivers/char/virtio_console.c:1176) [ 14.112066][ T348] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 14.112068][ T348] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.112071][ T348] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.112076][ T348] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.112078][ T348] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.112082][ T348] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.112085][ T348] ? mark_usage (kernel/locking/lockdep.c:4690) [ 14.112087][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.112089][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.112092][ T348] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.112094][ T348] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 14.112098][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.112100][ T348] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.112104][ T348] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.112108][ T348] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.112110][ T348] ? 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)) [ 14.112113][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.112115][ T348] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.112119][ T348] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.112124][ T348] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.112125][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.112131][ T348] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.112133][ T348] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.112135][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.112138][ T348] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.112141][ T348] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.112143][ T348] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.112146][ T348] vprintk_emit (kernel/printk/printk.c:2479) [ 14.112150][ T348] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.112153][ T348] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.112156][ T348] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 14.112159][ T348] _printk (kernel/printk/printk.c:2504) [ 14.112163][ T348] ? snapshot_read.cold (user.c:?) [ 14.112167][ T348] ? br_multicast_flood (??:?) bridge [ 14.112180][ T348] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 14.112181][ T348] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.112183][ T348] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.112187][ T348] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 14.112197][ T348] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 14.112206][ T348] new_nbp (net/bridge/br_if.c:449) bridge [ 14.112215][ T348] br_add_if (net/bridge/br_if.c:592) bridge [ 14.112222][ T348] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 14.112226][ T348] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 14.112229][ T348] ? __kernel_text_address (kernel/extable.c:79) [ 14.112233][ T348] do_set_master (net/core/rtnetlink.c:3071) [ 14.112238][ T348] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 14.112241][ T348] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 14.112245][ T348] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 14.112246][ T348] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 14.112248][ T348] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 14.112251][ T348] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.112254][ T348] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.112256][ T348] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.112258][ T348] ? kasan_save_stack (mm/kasan/common.c:58) [ 14.112261][ T348] ? kasan_save_stack (mm/kasan/common.c:57) [ 14.112263][ T348] ? kasan_save_track (mm/kasan/common.c:78) [ 14.112266][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.112268][ T348] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 14.112271][ T348] ? ___sys_sendmsg (net/socket.c:2757) [ 14.112275][ T348] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.112277][ T348] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.112280][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.112282][ T348] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.112284][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.112285][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.112288][ T348] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 14.112292][ T348] ? __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) [ 14.112296][ T348] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 14.112298][ T348] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.112301][ T348] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 14.112303][ T348] ? nla_get_range_signed (lib/nlattr.c:270) [ 14.112307][ T348] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 14.112313][ T348] rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.112318][ T348] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.112320][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.112324][ T348] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.112326][ T348] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.112328][ T348] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.112330][ T348] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.112334][ T348] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.112336][ T348] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.112339][ T348] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.112340][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.112345][ T348] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.112347][ T348] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.112350][ T348] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 14.112352][ T348] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.112355][ T348] ? netlink_ack (./include/linux/skbuff.h:2718) [ 14.112361][ T348] ? 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)) [ 14.112362][ T348] ? 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)) [ 14.112367][ T348] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 14.112370][ T348] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 14.112373][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.112377][ T348] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 14.112381][ T348] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 14.112385][ T348] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.112390][ T348] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 14.112392][ T348] ? copy_msghdr_from_user (net/socket.c:2650) [ 14.112395][ T348] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 14.112396][ T348] ? move_addr_to_kernel (net/socket.c:258) [ 14.112404][ T348] ___sys_sendmsg (net/socket.c:2767) [ 14.112406][ T348] ? copy_msghdr_from_user (net/socket.c:2619) [ 14.112422][ T348] __sys_sendmsg (net/socket.c:2799) [ 14.112425][ T348] ? __sys_sendmsg_sock (net/socket.c:2780) [ 14.112431][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.112435][ T348] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.112437][ T348] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.112441][ T348] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.112443][ T348] RIP: 0033:0x7f42a0f1054e [ 14.112446][ T348] 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 [ 14.112448][ T348] RSP: 002b:00007ffede48f3f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 14.112451][ T348] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f42a0f1054e [ 14.112452][ T348] RDX: 0000000000000000 RSI: 00007ffede48f4a0 RDI: 0000000000000005 [ 14.112453][ T348] RBP: 00007ffede48f400 R08: 0000000000000000 R09: 0000000000000000 [ 14.112454][ T348] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e74e [ 14.112455][ T348] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffede48fb60 | [ 23.690214][ T70] softirqs last disabled at (40558): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan | [ 23.690219][ T70] Preemption disabled at: | [ 23.690220][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 23.690229][ T70] Tainted: [W]=WARN [ 23.690230][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.690231][ T70] Workqueue: netns cleanup_net [ 23.690235][ T70] Call Trace: [ 23.690237][ T70] [ 23.690239][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.690245][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 23.690247][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 23.690252][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.690256][ T70] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.690262][ T70] __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)) [ 23.690264][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.690270][ T70] ? 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) [ 23.690274][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.690277][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 23.690280][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.690284][ T70] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 23.690288][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.690291][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.690292][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.690297][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.690298][ T70] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 23.690302][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.690306][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.690310][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.690314][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.690316][ T70] ? 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)) [ 23.690319][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.690321][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.690325][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.690330][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.690332][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.690337][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.690340][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.690342][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.690344][ T70] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 23.690348][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.690349][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.690353][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 23.690357][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.690359][ T70] ? process_one_work (kernel/workqueue.c:3387) [ 23.690361][ T70] ? kthread (kernel/kthread.c:436) [ 23.690363][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 23.690366][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 23.690370][ T70] _printk (kernel/printk/printk.c:2504) [ 23.690374][ T70] ? snapshot_read.cold (user.c:?) [ 23.690378][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 23.690382][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 23.690386][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 23.690388][ T70] ? netdev_notice (net/core/dev.c:13194) [ 23.690392][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.690394][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 23.690397][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 23.690398][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.690401][ T70] ? 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) [ 23.690404][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 23.690409][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 23.690414][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 23.690428][ T70] br_dev_delete (net/bridge/br_if.c:387) bridge [ 23.690437][ T70] br_net_exit_rtnl (net/bridge/br.c:414) bridge [ 23.690445][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 23.690449][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.690453][ T70] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 23.690455][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.690458][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 23.690463][ T70] cleanup_net (net/core/net_namespace.c:706) [ 23.690466][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 23.690470][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.690472][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.690476][ T70] process_one_work (kernel/workqueue.c:3387) [ 23.690482][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.690485][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.690493][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.690497][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.690499][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 23.690502][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.690505][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.690506][ T70] kthread (kernel/kthread.c:436) [ 23.690508][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.690511][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.690514][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.690518][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.690524][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.690528][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.690531][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 24.690320][ T488] softirqs last disabled at (21644): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge | [ 24.690328][ T488] Preemption disabled at: | [ 24.690329][ T488] 0x0 | [ 24.690338][ T488] Tainted: [W]=WARN [ 24.690339][ T488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.690341][ T488] Call Trace: [ 24.690342][ T488] [ 24.690344][ T488] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.690350][ T488] __might_resched.cold (kernel/sched/core.c:9234) [ 24.690355][ T488] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.690360][ T488] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.690365][ T488] __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)) [ 24.690367][ T488] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.690372][ T488] ? 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) [ 24.690375][ T488] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.690378][ T488] put_chars (drivers/char/virtio_console.c:1176) [ 24.690381][ T488] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.690384][ T488] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.690388][ T488] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.690390][ T488] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.690394][ T488] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.690397][ T488] ? mark_usage (kernel/locking/lockdep.c:4690) [ 24.690399][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.690400][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.690404][ T488] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.690405][ T488] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.690410][ T488] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.690413][ T488] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.690417][ T488] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.690419][ T488] ? 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)) [ 24.690422][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.690424][ T488] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.690428][ T488] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.690432][ T488] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.690434][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.690439][ T488] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.690442][ T488] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.690444][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.690446][ T488] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 24.690449][ T488] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.690451][ T488] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.690454][ T488] vprintk_emit (kernel/printk/printk.c:2479) [ 24.690459][ T488] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.690460][ T488] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 24.690463][ T488] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.690465][ T488] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.690469][ T488] _printk (kernel/printk/printk.c:2504) [ 24.690473][ T488] ? snapshot_read.cold (user.c:?) [ 24.690480][ T488] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 24.690491][ T488] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge [ 24.690500][ T488] br_device_event (net/bridge/br.c:111) bridge [ 24.690508][ T488] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 24.690512][ T488] ? _sub_I_65535_1+0x4d0/0x4d0 stp [ 24.690518][ T488] notifier_call_chain (kernel/notifier.c:85) [ 24.690523][ T488] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 24.690528][ T488] ? netif_change_name (net/core/dev.c:1517) [ 24.690532][ T488] ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1)) [ 24.690535][ T488] ? __kernel_text_address (kernel/extable.c:79) [ 24.690537][ T488] ? write_profile (profile.c:?) [ 24.690540][ T488] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 24.690544][ T488] netif_change_flags (net/core/dev.c:9882) [ 24.690548][ T488] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 24.690552][ T488] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 24.690554][ T488] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 24.690555][ T488] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 24.690557][ T488] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 24.690560][ T488] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.690563][ T488] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.690565][ T488] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.690567][ T488] ? kasan_save_stack (mm/kasan/common.c:58) [ 24.690570][ T488] ? kasan_save_stack (mm/kasan/common.c:57) [ 24.690572][ T488] ? kasan_save_track (mm/kasan/common.c:78) [ 24.690575][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.690576][ T488] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 24.690579][ T488] ? ___sys_sendmsg (net/socket.c:2757) [ 24.690584][ T488] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.690586][ T488] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.690588][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.690591][ T488] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.690592][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.690594][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.690596][ T488] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 24.690600][ T488] ? __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) [ 24.690602][ T488] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 24.690604][ T488] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.690607][ T488] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 24.690612][ T488] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 24.690617][ T488] rtnl_newlink (net/core/rtnetlink.c:4215) [ 24.690622][ T488] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.690624][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.690629][ T488] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.690630][ T488] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.690632][ T488] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.690634][ T488] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.690638][ T488] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.690640][ T488] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 24.690643][ T488] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.690644][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.690648][ T488] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.690650][ T488] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.690653][ T488] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 24.690655][ T488] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.690658][ T488] ? netlink_ack (./include/linux/skbuff.h:2718) [ 24.690664][ T488] ? 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)) [ 24.690666][ T488] ? 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)) [ 24.690670][ T488] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 24.690673][ T488] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.690676][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.690680][ T488] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 24.690684][ T488] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.690687][ T488] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 24.690693][ T488] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 24.690695][ T488] ? copy_msghdr_from_user (net/socket.c:2650) [ 24.690698][ T488] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 24.690699][ T488] ? move_addr_to_kernel (net/socket.c:258) [ 24.690706][ T488] ___sys_sendmsg (net/socket.c:2767) [ 24.690709][ T488] ? copy_msghdr_from_user (net/socket.c:2619) [ 24.690725][ T488] __sys_sendmsg (net/socket.c:2799) [ 24.690727][ T488] ? __sys_sendmsg_sock (net/socket.c:2780) [ 24.690734][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.690737][ T488] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.690740][ T488] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.690743][ T488] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.690745][ T488] RIP: 0033:0x7f788588454e [ 24.690747][ T488] 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 [ 24.690749][ T488] RSP: 002b:00007ffe03be7760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 24.690752][ T488] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f788588454e [ 24.690753][ T488] RDX: 0000000000000000 RSI: 00007ffe03be7810 RDI: 0000000000000005 [ 24.690754][ T488] RBP: 00007ffe03be7770 R08: 0000000000000000 R09: 0000000000000000 [ 24.690755][ T488] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e759 Finger prints: br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars vxlan_flush:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print