====================================== | [ 9.181445][ T185] softirqs last disabled at (34157): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.181447][ T185] Preemption disabled at: | [ 9.181448][ T185] 0x0 | [ 9.181458][ T185] Tainted: [W]=WARN [ 9.181459][ T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.181461][ T185] Call Trace: [ 9.181462][ T185] [ 9.181463][ T185] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.181469][ T185] __might_resched.cold (kernel/sched/core.c:9234) [ 9.181474][ T185] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.181477][ T185] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.181482][ T185] __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)) [ 9.181484][ T185] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.181490][ T185] ? 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) [ 9.181493][ T185] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.181496][ T185] put_chars (drivers/char/virtio_console.c:1176) [ 9.181499][ T185] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.181505][ T185] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.181512][ T185] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.181515][ T185] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.181519][ T185] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.181523][ T185] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.181524][ T185] ? 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)) [ 9.181526][ T185] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.181530][ T185] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.181534][ T185] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.181537][ T185] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.181539][ T185] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.181544][ T185] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.181546][ T185] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.181547][ T185] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.181549][ T185] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.181553][ T185] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.181554][ T185] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.181557][ T185] vprintk_emit (kernel/printk/printk.c:2479) [ 9.181560][ T185] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.181563][ T185] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.181567][ T185] _printk (kernel/printk/printk.c:2504) [ 9.181570][ T185] ? snapshot_read.cold (user.c:?) [ 9.181573][ T185] ? 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) [ 9.181576][ T185] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.181579][ T185] ? 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) [ 9.181582][ T185] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.181586][ T185] ? exit_notify (kernel/exit.c:780) [ 9.181587][ T185] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.181590][ T185] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.181594][ T185] do_group_exit (kernel/exit.c:1151) [ 9.181597][ T185] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.181599][ T185] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.181602][ T185] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.181605][ T185] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.181613][ T185] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.181615][ T185] RIP: 0033:0x7ff8dc7281b8 [ 9.181617][ T185] Code: Unable to access opcode bytes at 0x7ff8dc72818e. Code starting with the faulting instruction =========================================== [ 9.181618][ T185] RSP: 002b:00007fff68498c28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.181620][ T185] RAX: ffffffffffffffda RBX: 00007ff8dc858f88 RCX: 00007ff8dc7281b8 [ 9.181622][ T185] RDX: 00007ff8dc472fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.181623][ T185] RBP: 00007fff68498c80 R08: 0000000000000000 R09: 0000000000000050 [ 9.181624][ T185] R10: 00007fff68498a40 R11: 0000000000000246 R12: 0000000000000001 [ 9.181624][ T185] R13: 0000000000000000 R14: 00007ff8dc857680 R15: 00007ff8dc858fa0 | [ 10.492935][ T228] softirqs last disabled at (17208): br_stp_enable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:53) bridge | [ 10.492942][ T228] Preemption disabled at: | [ 10.492943][ T228] 0x0 | [ 10.492952][ T228] Tainted: [W]=WARN [ 10.492953][ T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.492955][ T228] Call Trace: [ 10.492956][ T228] [ 10.492958][ T228] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.492964][ T228] __might_resched.cold (kernel/sched/core.c:9234) [ 10.492968][ T228] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.492971][ T228] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.492976][ T228] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 10.492979][ T228] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.492985][ T228] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 10.492988][ T228] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.492991][ T228] put_chars (drivers/char/virtio_console.c:1176) [ 10.492994][ T228] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.492997][ T228] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.493002][ T228] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.493006][ T228] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.493007][ T228] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.493012][ T228] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.493014][ T228] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 10.493016][ T228] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.493020][ T228] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.493024][ T228] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.493027][ T228] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.493028][ T228] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 10.493031][ T228] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.493033][ T228] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.493037][ T228] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.493040][ T228] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.493042][ T228] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.493047][ T228] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.493049][ T228] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.493051][ T228] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.493052][ T228] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.493056][ T228] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.493058][ T228] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.493061][ T228] vprintk_emit (kernel/printk/printk.c:2479) [ 10.493064][ T228] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.493070][ T228] _printk (kernel/printk/printk.c:2504) [ 10.493073][ T228] ? snapshot_read.cold (user.c:?) [ 10.493076][ T228] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 10.493078][ T228] ? try_to_grab_pending (./include/linux/instrumented.h:112 ./include/asm-generic/bitops/instrumented-atomic.h:71 kernel/workqueue.c:2158) [ 10.493081][ T228] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.493084][ T228] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.493090][ T228] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 10.493100][ T228] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 10.493107][ T228] br_stp_enable_bridge (net/bridge/br_stp_if.c:93 net/bridge/br_stp_if.c:62) bridge [ 10.493116][ T228] br_dev_open (net/bridge/br_device.c:170) bridge [ 10.493124][ T228] __dev_open (net/core/dev.c:1724) [ 10.493127][ T228] ? netif_state_change (./include/net/netdev_lock.h:33) [ 10.493129][ T228] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.493131][ T228] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.493136][ T228] __dev_change_flags (net/core/dev.c:9812) [ 10.493139][ T228] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 10.493141][ T228] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 10.493144][ T228] ? __kernel_text_address (kernel/extable.c:79) [ 10.493145][ T228] ? write_profile (profile.c:?) [ 10.493150][ T228] netif_change_flags (net/core/dev.c:9877) [ 10.493154][ T228] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 10.493157][ T228] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.493160][ T228] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.493161][ T228] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.493163][ T228] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.493167][ T228] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.493170][ T228] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.493171][ T228] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.493174][ T228] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.493177][ T228] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.493179][ T228] ? kasan_save_track (mm/kasan/common.c:78) [ 10.493181][ T228] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.493183][ T228] ? netlink_update_listeners (net/netlink/af_netlink.c:532) [ 10.493189][ T228] ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763) [ 10.493194][ T228] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.493196][ T228] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.493198][ T228] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.493200][ T228] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.493202][ T228] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.493203][ T228] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.493205][ T228] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.493208][ T228] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 10.493210][ T228] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.493212][ T228] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.493215][ T228] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.493221][ T228] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.493226][ T228] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.493231][ T228] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.493233][ T228] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.493238][ T228] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.493240][ T228] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.493242][ T228] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.493244][ T228] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.493248][ T228] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.493250][ T228] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.493253][ T228] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.493254][ T228] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.493259][ T228] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.493261][ T228] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.493264][ T228] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.493266][ T228] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.493269][ T228] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.493275][ T228] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 10.493277][ T228] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 10.493281][ T228] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.493284][ T228] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.493287][ T228] ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3)) [ 10.493291][ T228] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.493295][ T228] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.493296][ T228] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.493299][ T228] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.493303][ T228] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.493307][ T228] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 10.493310][ T228] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.493312][ T228] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 10.493313][ T228] ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1)) [ 10.493321][ T228] ___sys_sendmsg (net/socket.c:2767) [ 10.493323][ T228] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.493339][ T228] __sys_sendmsg (net/socket.c:2799) [ 10.493343][ T228] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.493349][ T228] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.493352][ T228] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.493354][ T228] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.493357][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.493359][ T228] RIP: 0033:0x7fe82902a54e [ 10.493362][ T228] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 10.493363][ T228] RSP: 002b:00007ffe930b8b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.493366][ T228] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe82902a54e [ 10.493367][ T228] RDX: 0000000000000000 RSI: 00007ffe930b8c20 RDI: 0000000000000005 [ 10.493368][ T228] RBP: 00007ffe930b8b80 R08: 0000000000000000 R09: 0000000000000000 [ 10.493369][ T228] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90eef7 [ 10.493370][ T228] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe930b92f0 | [ 12.589160][ T12] softirqs last disabled at (5618): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan | [ 12.589164][ T12] Preemption disabled at: | [ 12.589165][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.589174][ T12] Tainted: [W]=WARN [ 12.589175][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.589176][ T12] Workqueue: netns cleanup_net [ 12.589179][ T12] Call Trace: [ 12.589186][ T12] [ 12.589188][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.589193][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.589195][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 12.589199][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.589203][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.589208][ T12] __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)) [ 12.589211][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.589217][ T12] ? 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) [ 12.589219][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.589223][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 12.589226][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.589229][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.589234][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.589237][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.589243][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.589245][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.589251][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.589255][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.589256][ T12] ? 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)) [ 12.589259][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.589261][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.589265][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.589268][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.589270][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.589275][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.589277][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.589279][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.589281][ T12] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.589284][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.589286][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.589289][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 12.589292][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.589294][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 12.589295][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 12.589297][ T12] ? kthread (kernel/kthread.c:436) [ 12.589299][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 12.589303][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 12.589307][ T12] _printk (kernel/printk/printk.c:2504) [ 12.589311][ T12] ? snapshot_read.cold (user.c:?) [ 12.589315][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 12.589319][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 12.589322][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.589325][ T12] ? netdev_notice (net/core/dev.c:13194) [ 12.589329][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.589331][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 12.589334][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 12.589336][ T12] ? 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) [ 12.589339][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 12.589343][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 12.589347][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 12.589362][ T12] br_dev_delete (net/bridge/br_if.c:387) bridge [ 12.589371][ T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge [ 12.589379][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 12.589382][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.589387][ T12] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 12.589388][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.589391][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 12.589396][ T12] cleanup_net (net/core/net_namespace.c:706) [ 12.589399][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 12.589403][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.589405][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.589408][ T12] process_one_work (kernel/workqueue.c:3387) [ 12.589414][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 12.589416][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.589424][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 12.589431][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 12.589432][ T12] kthread (kernel/kthread.c:436) [ 12.589434][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.589437][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 12.589440][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 12.589443][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 12.589446][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 12.589449][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: vxlan_flush:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars br_stp_enable_bridge:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print