====================================== | [ 9.734621][ T186] softirqs last disabled at (37667): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.734623][ T186] Preemption disabled at: | [ 9.734624][ T186] 0x0 | [ 9.734633][ T186] Tainted: [W]=WARN [ 9.734634][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.734636][ T186] Call Trace: [ 9.734637][ T186] [ 9.734639][ T186] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.734645][ T186] __might_resched.cold (kernel/sched/core.c:9234) [ 9.734649][ T186] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.734653][ T186] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.734658][ T186] __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)) [ 9.734660][ T186] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.734666][ T186] ? 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) [ 9.734669][ T186] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.734672][ T186] put_chars (drivers/char/virtio_console.c:1176) [ 9.734674][ T186] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.734676][ T186] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.734680][ T186] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.734685][ T186] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.734691][ T186] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.734693][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.734696][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.734699][ T186] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.734703][ T186] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.734705][ T186] ? 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)) [ 9.734708][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.734710][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.734714][ T186] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.734718][ T186] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.734720][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.734725][ T186] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.734727][ T186] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.734729][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.734731][ T186] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.734735][ T186] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.734736][ T186] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.734739][ T186] vprintk_emit (kernel/printk/printk.c:2479) [ 9.734743][ T186] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.734746][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.734750][ T186] _printk (kernel/printk/printk.c:2504) [ 9.734754][ T186] ? snapshot_read.cold (user.c:?) [ 9.734756][ T186] ? 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) [ 9.734759][ T186] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.734762][ T186] ? 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) [ 9.734765][ T186] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.734769][ T186] ? exit_notify (kernel/exit.c:780) [ 9.734771][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.734773][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.734785][ T186] do_group_exit (kernel/exit.c:1151) [ 9.734787][ T186] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.734789][ T186] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.734791][ T186] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.734795][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.734798][ T186] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.734800][ T186] RIP: 0033:0x7f31d72ef1b8 [ 9.734802][ T186] Code: Unable to access opcode bytes at 0x7f31d72ef18e. Code starting with the faulting instruction =========================================== [ 9.734803][ T186] RSP: 002b:00007ffd31ac8ab8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.734806][ T186] RAX: ffffffffffffffda RBX: 00007f31d741ff88 RCX: 00007f31d72ef1b8 [ 9.734807][ T186] RDX: 00007f31d7039fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.734808][ T186] RBP: 00007ffd31ac8b10 R08: 0000000000000000 R09: 0000000000008010 [ 9.734809][ T186] R10: 00007ffd31ac88d0 R11: 0000000000000246 R12: 0000000000000001 [ 9.734810][ T186] R13: 0000000000000000 R14: 00007f31d741e680 R15: 00007f31d741ffa0 | [ 10.988648][ T237] softirqs last disabled at (24897): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.988650][ T237] Preemption disabled at: | [ 10.988651][ T237] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.988660][ T237] Tainted: [W]=WARN [ 10.988661][ T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.988662][ T237] Call Trace: [ 10.988664][ T237] [ 10.988665][ T237] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.988671][ T237] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.988673][ T237] __might_resched.cold (kernel/sched/core.c:9234) [ 10.988678][ T237] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.988682][ T237] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.988687][ T237] __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)) [ 10.988689][ T237] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.988695][ T237] ? 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) [ 10.988697][ T237] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.988700][ T237] put_chars (drivers/char/virtio_console.c:1176) [ 10.988703][ T237] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.988705][ T237] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.988709][ T237] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.988712][ T237] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.988716][ T237] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.988719][ T237] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.988724][ T237] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.988726][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.988731][ T237] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.988735][ T237] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.988737][ T237] ? 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)) [ 10.988740][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.988742][ T237] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.988746][ T237] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.988750][ T237] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.988752][ T237] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.988757][ T237] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.988759][ T237] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.988761][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.988763][ T237] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.988767][ T237] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.988769][ T237] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.988772][ T237] vprintk_emit (kernel/printk/printk.c:2479) [ 10.988776][ T237] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.988784][ T237] ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q [ 10.988788][ T237] _printk (kernel/printk/printk.c:2504) [ 10.988792][ T237] ? snapshot_read.cold (user.c:?) [ 10.988798][ T237] ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356) [ 10.988801][ T237] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q [ 10.988804][ T237] do_one_initcall (init/main.c:1357) [ 10.988807][ T237] ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10) [ 10.988811][ T237] ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1)) [ 10.988814][ T237] ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178) [ 10.988819][ T237] do_init_module (kernel/module/main.c:3117) [ 10.988823][ T237] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.988827][ T237] ? free_module (./include/trace/events/module.h:50 (discriminator 19)) [ 10.988830][ T237] ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792) [ 10.988834][ T237] load_module (kernel/module/main.c:3593) [ 10.988842][ T237] ? layout_and_allocate.isra.0 (kernel/module/main.c:3016) [ 10.988845][ T237] ? __ia32_sys_fsconfig (??:?) [ 10.988848][ T237] ? ovl_real_file (fs/overlayfs/file.c:195) [ 10.988852][ T237] ? backing_file_read_iter (fs/backing-file.c:211) [ 10.988855][ T237] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.988859][ T237] init_module_from_file (kernel/module/main.c:3790) [ 10.988862][ T237] ? __do_sys_init_module (kernel/module/main.c:3664) [ 10.988870][ T237] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.988874][ T237] ? 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) [ 10.988877][ T237] idempotent_init_module (kernel/module/main.c:3802) [ 10.988880][ T237] ? init_module_from_file (kernel/module/main.c:3791) [ 10.988886][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.988889][ T237] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 10.988894][ T237] __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812) [ 10.988896][ T237] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.988900][ T237] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.988902][ T237] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.988905][ T237] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.988907][ T237] RIP: 0033:0x7fe86e32d37d [ 10.988910][ T237] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48 All code ======== 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 90 nop d: f3 0f 1e fa endbr64 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d 4b aa 0f 00 mov 0xfaa4b(%rip),%rcx # 0xfaa85 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d 4b aa 0f 00 mov 0xfaa4b(%rip),%rcx # 0xfaa5b 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 10.988912][ T237] RSP: 002b:00007ffd9ff889f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.988915][ T237] RAX: ffffffffffffffda RBX: 000055be28ab1810 RCX: 00007fe86e32d37d [ 10.988916][ T237] RDX: 0000000000000000 RSI: 000055be01a6affd RDI: 0000000000000000 [ 10.988917][ T237] RBP: 00007ffd9ff88a90 R08: 0000000000000000 R09: 0000000000000000 [ 10.988918][ T237] R10: 0000000000000000 R11: 0000000000000246 R12: 000055be01a6affd [ 10.988919][ T237] R13: 000055be28ab1960 R14: 0000000000040000 R15: 0000000000000000 | [ 12.282347][ T283] softirqs last disabled at (28929): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.282349][ T283] Preemption disabled at: | [ 12.282350][ T283] 0x0 | [ 12.282360][ T283] Tainted: [W]=WARN [ 12.282361][ T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.282363][ T283] Call Trace: [ 12.282364][ T283] [ 12.282366][ T283] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.282372][ T283] __might_resched.cold (kernel/sched/core.c:9234) [ 12.282377][ T283] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.282381][ T283] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.282386][ T283] __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)) [ 12.282388][ T283] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.282394][ T283] ? 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) [ 12.282397][ T283] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.282400][ T283] put_chars (drivers/char/virtio_console.c:1176) [ 12.282403][ T283] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.282404][ T283] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.282409][ T283] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.282415][ T283] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.282421][ T283] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.282423][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.282426][ T283] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.282429][ T283] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.282433][ T283] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.282435][ T283] ? 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)) [ 12.282439][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.282441][ T283] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.282445][ T283] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.282449][ T283] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.282451][ T283] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.282456][ T283] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.282459][ T283] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.282461][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.282463][ T283] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.282467][ T283] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.282468][ T283] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.282472][ T283] vprintk_emit (kernel/printk/printk.c:2479) [ 12.282476][ T283] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.282480][ T283] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.282483][ T283] _printk (kernel/printk/printk.c:2504) [ 12.282487][ T283] ? snapshot_read.cold (user.c:?) [ 12.282490][ T283] ? 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) [ 12.282493][ T283] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.282497][ T283] ? 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) [ 12.282499][ T283] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.282503][ T283] ? exit_notify (kernel/exit.c:780) [ 12.282505][ T283] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.282508][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.282512][ T283] do_group_exit (kernel/exit.c:1151) [ 12.282515][ T283] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.282517][ T283] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.282519][ T283] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.282524][ T283] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.282527][ T283] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.282529][ T283] RIP: 0033:0x7fbedd67d1b8 [ 12.282531][ T283] Code: Unable to access opcode bytes at 0x7fbedd67d18e. Code starting with the faulting instruction =========================================== [ 12.282532][ T283] RSP: 002b:00007fff069c4778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.282535][ T283] RAX: ffffffffffffffda RBX: 00007fbedd7adf88 RCX: 00007fbedd67d1b8 [ 12.282536][ T283] RDX: 00007fbedd3c7fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.282537][ T283] RBP: 00007fff069c47d0 R08: 0000000000000000 R09: 0000000000000050 [ 12.282538][ T283] R10: 00007fff069c4590 R11: 0000000000000246 R12: 0000000000000001 [ 12.282538][ T283] R13: 0000000000000000 R14: 00007fbedd7ac680 R15: 00007fbedd7adfa0 | [ 13.928274][ T338] softirqs last disabled at (19624): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 13.928276][ T338] Preemption disabled at: | [ 13.928277][ T338] vprintk_emit (kernel/printk/printk.c:2471) | [ 13.928286][ T338] Tainted: [W]=WARN [ 13.928287][ T338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.928289][ T338] Call Trace: [ 13.928290][ T338] [ 13.928292][ T338] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.928298][ T338] ? vprintk_emit (kernel/printk/printk.c:2471) [ 13.928300][ T338] __might_resched.cold (kernel/sched/core.c:9234) [ 13.928305][ T338] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.928309][ T338] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.928314][ T338] __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)) [ 13.928317][ T338] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.928322][ T338] ? 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) [ 13.928325][ T338] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.928329][ T338] put_chars (drivers/char/virtio_console.c:1176) [ 13.928331][ T338] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 13.928333][ T338] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.928336][ T338] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.928340][ T338] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.928343][ T338] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.928347][ T338] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.928350][ T338] ? mark_usage (kernel/locking/lockdep.c:4690) [ 13.928351][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.928353][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.928357][ T338] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.928359][ T338] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 13.928363][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.928365][ T338] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.928369][ T338] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.928373][ T338] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.928375][ T338] ? 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)) [ 13.928378][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.928381][ T338] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.928385][ T338] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.928389][ T338] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.928391][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.928396][ T338] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.928399][ T338] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.928401][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.928403][ T338] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.928407][ T338] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.928409][ T338] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.928413][ T338] vprintk_emit (kernel/printk/printk.c:2479) [ 13.928417][ T338] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.928419][ T338] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.928422][ T338] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.928426][ T338] _printk (kernel/printk/printk.c:2504) [ 13.928430][ T338] ? snapshot_read.cold (user.c:?) [ 13.928434][ T338] ? br_multicast_flood (??:?) bridge [ 13.928447][ T338] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.928448][ T338] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.928449][ T338] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.928454][ T338] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 13.928464][ T338] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 13.928473][ T338] new_nbp (net/bridge/br_if.c:449) bridge [ 13.928482][ T338] br_add_if (net/bridge/br_if.c:592) bridge [ 13.928490][ T338] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 13.928494][ T338] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 13.928497][ T338] ? __kernel_text_address (kernel/extable.c:79) [ 13.928501][ T338] do_set_master (net/core/rtnetlink.c:3071) [ 13.928506][ T338] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.928509][ T338] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.928512][ T338] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.928514][ T338] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.928515][ T338] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.928519][ T338] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.928524][ T338] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.928526][ T338] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.928528][ T338] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.928532][ T338] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.928533][ T338] ? kasan_save_track (mm/kasan/common.c:78) [ 13.928536][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.928538][ T338] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 13.928541][ T338] ? ___sys_sendmsg (net/socket.c:2757) [ 13.928545][ T338] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.928547][ T338] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.928550][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.928552][ T338] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.928554][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.928556][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.928558][ T338] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.928562][ T338] ? __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) [ 13.928565][ T338] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.928567][ T338] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.928571][ T338] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.928572][ T338] ? nla_get_range_signed (lib/nlattr.c:270) [ 13.928577][ T338] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.928583][ T338] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.928588][ T338] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.928590][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.928595][ T338] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.928597][ T338] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.928599][ T338] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.928601][ T338] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.928605][ T338] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.928607][ T338] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.928610][ T338] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.928611][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.928616][ T338] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.928618][ T338] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.928621][ T338] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.928623][ T338] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.928626][ T338] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.928632][ T338] ? 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)) [ 13.928634][ T338] ? 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)) [ 13.928638][ T338] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.928642][ T338] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.928645][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.928649][ T338] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.928653][ T338] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.928657][ T338] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 13.928662][ T338] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 13.928665][ T338] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.928667][ T338] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 13.928669][ T338] ? move_addr_to_kernel (net/socket.c:258) [ 13.928676][ T338] ___sys_sendmsg (net/socket.c:2767) [ 13.928679][ T338] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.928696][ T338] __sys_sendmsg (net/socket.c:2799) [ 13.928699][ T338] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.928705][ T338] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.928709][ T338] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.928711][ T338] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.928714][ T338] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.928717][ T338] RIP: 0033:0x7f72b50b954e [ 13.928720][ T338] 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 [ 13.928722][ T338] RSP: 002b:00007ffd269dc6a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.928725][ T338] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f72b50b954e [ 13.928726][ T338] RDX: 0000000000000000 RSI: 00007ffd269dc750 RDI: 0000000000000005 [ 13.928727][ T338] RBP: 00007ffd269dc6b0 R08: 0000000000000000 R09: 0000000000000000 [ 13.928728][ T338] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91634d [ 13.928729][ T338] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd269dce10 | [ 15.224892][ T384] softirqs last disabled at (18786): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 15.224894][ T384] Preemption disabled at: | [ 15.224895][ T384] vprintk_emit (kernel/printk/printk.c:2471) | [ 15.224905][ T384] Tainted: [W]=WARN [ 15.224906][ T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.224908][ T384] Call Trace: [ 15.224909][ T384] [ 15.224911][ T384] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.224917][ T384] ? vprintk_emit (kernel/printk/printk.c:2471) [ 15.224919][ T384] __might_resched.cold (kernel/sched/core.c:9234) [ 15.224923][ T384] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.224928][ T384] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.224933][ T384] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 15.224935][ T384] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.224941][ T384] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 15.224944][ T384] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.224947][ T384] put_chars (drivers/char/virtio_console.c:1176) [ 15.224949][ T384] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 15.224951][ T384] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.224954][ T384] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.224958][ T384] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.224961][ T384] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.224965][ T384] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.224968][ T384] ? mark_usage (kernel/locking/lockdep.c:4690) [ 15.224969][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.224971][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.224975][ T384] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.224977][ T384] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 15.224980][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.224983][ T384] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.224987][ T384] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.224991][ T384] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.224992][ T384] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 15.224996][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.224998][ T384] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.225002][ T384] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.225006][ T384] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.225008][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.225014][ T384] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.225016][ T384] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.225018][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.225021][ T384] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.225024][ T384] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.225026][ T384] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.225030][ T384] vprintk_emit (kernel/printk/printk.c:2479) [ 15.225034][ T384] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.225036][ T384] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.225039][ T384] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 15.225043][ T384] _printk (kernel/printk/printk.c:2504) [ 15.225046][ T384] ? snapshot_read.cold (user.c:?) [ 15.225050][ T384] ? br_multicast_flood (??:?) bridge [ 15.225063][ T384] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 15.225065][ T384] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.225066][ T384] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.225070][ T384] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 15.225081][ T384] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 15.225089][ T384] new_nbp (net/bridge/br_if.c:449) bridge [ 15.225098][ T384] br_add_if (net/bridge/br_if.c:592) bridge [ 15.225106][ T384] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 15.225110][ T384] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 15.225113][ T384] ? __kernel_text_address (kernel/extable.c:79) [ 15.225117][ T384] do_set_master (net/core/rtnetlink.c:3071) [ 15.225121][ T384] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 15.225125][ T384] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 15.225128][ T384] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 15.225129][ T384] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 15.225131][ T384] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.225134][ T384] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.225137][ T384] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.225139][ T384] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.225141][ T384] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.225144][ T384] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.225146][ T384] ? kasan_save_track (mm/kasan/common.c:78) [ 15.225149][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.225151][ T384] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 15.225154][ T384] ? ___sys_sendmsg (net/socket.c:2757) [ 15.225158][ T384] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.225160][ T384] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.225162][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.225165][ T384] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.225166][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.225168][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.225171][ T384] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 15.225174][ T384] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 15.225178][ T384] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 15.225180][ T384] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.225183][ T384] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 15.225185][ T384] ? nla_get_range_signed (lib/nlattr.c:270) [ 15.225190][ T384] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 15.225195][ T384] rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.225201][ T384] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.225202][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.225207][ T384] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.225209][ T384] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.225211][ T384] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.225213][ T384] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.225216][ T384] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.225219][ T384] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.225222][ T384] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.225223][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.225228][ T384] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.225229][ T384] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.225233][ T384] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 15.225235][ T384] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.225238][ T384] ? netlink_ack (./include/linux/skbuff.h:2718) [ 15.225244][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 15.225245][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 15.225250][ T384] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 15.225253][ T384] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.225256][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.225260][ T384] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 15.225264][ T384] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.225268][ T384] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 15.225273][ T384] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 15.225276][ T384] ? copy_msghdr_from_user (net/socket.c:2650) [ 15.225278][ T384] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 15.225280][ T384] ? move_addr_to_kernel (net/socket.c:258) [ 15.225287][ T384] ___sys_sendmsg (net/socket.c:2767) [ 15.225290][ T384] ? copy_msghdr_from_user (net/socket.c:2619) [ 15.225306][ T384] __sys_sendmsg (net/socket.c:2799) [ 15.225309][ T384] ? __sys_sendmsg_sock (net/socket.c:2780) [ 15.225315][ T384] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.225319][ T384] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.225321][ T384] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.225324][ T384] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.225326][ T384] RIP: 0033:0x7fe4b841a54e [ 15.225329][ T384] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 15.225331][ T384] RSP: 002b:00007ffc96c4c1e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 15.225334][ T384] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe4b841a54e [ 15.225336][ T384] RDX: 0000000000000000 RSI: 00007ffc96c4c290 RDI: 0000000000000005 [ 15.225337][ T384] RBP: 00007ffc96c4c1f0 R08: 0000000000000000 R09: 0000000000000000 [ 15.225337][ T384] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91634e [ 15.225338][ T384] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc96c4c950 | [ 25.108878][ T71] softirqs last disabled at (43086): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan | [ 25.108883][ T71] Preemption disabled at: | [ 25.108883][ T71] vprintk_emit (kernel/printk/printk.c:2471) | [ 25.108892][ T71] Tainted: [W]=WARN [ 25.108893][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.108895][ T71] Workqueue: netns cleanup_net [ 25.108899][ T71] Call Trace: [ 25.108900][ T71] [ 25.108902][ T71] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.108908][ T71] ? vprintk_emit (kernel/printk/printk.c:2471) [ 25.108910][ T71] __might_resched.cold (kernel/sched/core.c:9234) [ 25.108915][ T71] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.108919][ T71] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.108924][ T71] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 25.108927][ T71] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.108932][ T71] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 25.108935][ T71] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.108938][ T71] put_chars (drivers/char/virtio_console.c:1176) [ 25.108941][ T71] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.108945][ T71] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 25.108949][ T71] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.108952][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.108954][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.108959][ T71] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.108960][ T71] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 25.108963][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.108967][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.108971][ T71] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.108975][ T71] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.108977][ T71] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 25.108980][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.108983][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.108987][ T71] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.108991][ T71] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.108993][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.108999][ T71] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.109001][ T71] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.109003][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.109006][ T71] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 25.109009][ T71] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.109011][ T71] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.109015][ T71] vprintk_emit (kernel/printk/printk.c:2479) [ 25.109019][ T71] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.109020][ T71] ? process_one_work (kernel/workqueue.c:3387) [ 25.109023][ T71] ? kthread (kernel/kthread.c:436) [ 25.109025][ T71] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 25.109027][ T71] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 25.109032][ T71] _printk (kernel/printk/printk.c:2504) [ 25.109036][ T71] ? snapshot_read.cold (user.c:?) [ 25.109040][ T71] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 25.109044][ T71] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 25.109048][ T71] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 25.109050][ T71] ? netdev_notice (net/core/dev.c:13194) [ 25.109054][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.109057][ T71] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 25.109059][ T71] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 25.109061][ T71] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.109063][ T71] ? 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) [ 25.109066][ T71] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 25.109071][ T71] dev_set_allmulti (net/core/dev_api.c:315) [ 25.109075][ T71] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 25.109089][ T71] br_dev_delete (net/bridge/br_if.c:387) bridge [ 25.109098][ T71] br_net_exit_rtnl (net/bridge/br.c:414) bridge [ 25.109107][ T71] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 25.109110][ T71] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 25.109115][ T71] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 25.109116][ T71] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.109119][ T71] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 25.109124][ T71] cleanup_net (net/core/net_namespace.c:706) [ 25.109127][ T71] ? net_passive_dec (./include/linux/llist.h:241) [ 25.109131][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.109133][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.109137][ T71] process_one_work (kernel/workqueue.c:3387) [ 25.109144][ T71] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 25.109147][ T71] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.109154][ T71] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 25.109159][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 25.109161][ T71] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 25.109163][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 25.109166][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 25.109168][ T71] kthread (kernel/kthread.c:436) [ 25.109170][ T71] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 25.109173][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 25.109176][ T71] ret_from_fork (arch/x86/kernel/process.c:158) [ 25.109178][ T71] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 25.109182][ T71] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 25.109185][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 25.109188][ T71] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 26.118375][ T528] softirqs last disabled at (13618): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 26.118378][ T528] Preemption disabled at: | [ 26.118378][ T528] vprintk_emit (kernel/printk/printk.c:2471) | [ 26.118388][ T528] Tainted: [W]=WARN [ 26.118389][ T528] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.118391][ T528] Call Trace: [ 26.118393][ T528] [ 26.118394][ T528] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.118400][ T528] ? vprintk_emit (kernel/printk/printk.c:2471) [ 26.118402][ T528] __might_resched.cold (kernel/sched/core.c:9234) [ 26.118407][ T528] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.118411][ T528] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.118417][ T528] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 26.118419][ T528] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.118425][ T528] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 26.118428][ T528] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.118431][ T528] put_chars (drivers/char/virtio_console.c:1176) [ 26.118434][ T528] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.118435][ T528] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.118440][ T528] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.118446][ T528] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.118452][ T528] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.118455][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118457][ T528] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.118461][ T528] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.118465][ T528] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.118467][ T528] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 26.118470][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118472][ T528] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.118477][ T528] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.118481][ T528] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.118483][ T528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.118488][ T528] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.118491][ T528] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.118493][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118495][ T528] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 26.118499][ T528] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.118501][ T528] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.118504][ T528] vprintk_emit (kernel/printk/printk.c:2479) [ 26.118508][ T528] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.118510][ T528] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.118511][ T528] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.118515][ T528] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.118516][ T528] ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 26.118519][ T528] ? ___sys_sendmsg (net/socket.c:2767) [ 26.118523][ T528] ? __sys_sendmsg (net/socket.c:2799) [ 26.118525][ T528] ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.118530][ T528] _printk (kernel/printk/printk.c:2504) [ 26.118534][ T528] ? snapshot_read.cold (user.c:?) [ 26.118539][ T528] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 26.118542][ T528] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 26.118546][ T528] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 26.118548][ T528] ? netdev_notice (net/core/dev.c:13194) [ 26.118552][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118555][ T528] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 26.118557][ T528] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 26.118559][ T528] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.118561][ T528] ? 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) [ 26.118564][ T528] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 26.118569][ T528] dev_set_allmulti (net/core/dev_api.c:315) [ 26.118573][ T528] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 26.118587][ T528] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 26.118593][ T528] br_del_if (net/bridge/br_if.c:732) bridge [ 26.118601][ T528] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 26.118604][ T528] do_set_master (net/core/rtnetlink.c:3055) [ 26.118608][ T528] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 26.118613][ T528] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.118616][ T528] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.118617][ T528] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.118620][ T528] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.118623][ T528] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.118626][ T528] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.118628][ T528] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.118631][ T528] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.118634][ T528] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.118635][ T528] ? kasan_save_track (mm/kasan/common.c:78) [ 26.118638][ T528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.118640][ T528] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 26.118642][ T528] ? ___sys_sendmsg (net/socket.c:2757) [ 26.118645][ T528] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.118647][ T528] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.118650][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118652][ T528] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.118654][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118656][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118658][ T528] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.118661][ T528] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 26.118663][ T528] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.118665][ T528] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.118669][ T528] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.118670][ T528] ? nla_get_range_signed (lib/nlattr.c:270) [ 26.118675][ T528] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.118681][ T528] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.118686][ T528] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.118688][ T528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.118693][ T528] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.118695][ T528] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.118697][ T528] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.118699][ T528] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.118703][ T528] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.118705][ T528] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.118708][ T528] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.118709][ T528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.118713][ T528] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.118715][ T528] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.118719][ T528] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.118721][ T528] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.118724][ T528] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.118730][ T528] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 26.118731][ T528] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 26.118736][ T528] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.118739][ T528] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.118742][ T528] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.118746][ T528] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.118750][ T528] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.118754][ T528] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 26.118759][ T528] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 26.118761][ T528] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.118764][ T528] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 26.118765][ T528] ? move_addr_to_kernel (net/socket.c:258) [ 26.118773][ T528] ___sys_sendmsg (net/socket.c:2767) [ 26.118776][ T528] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.118792][ T528] __sys_sendmsg (net/socket.c:2799) [ 26.118794][ T528] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.118801][ T528] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.118804][ T528] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.118806][ T528] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.118809][ T528] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.118812][ T528] RIP: 0033:0x7fcc5652854e [ 26.118823][ T528] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 26.118825][ T528] RSP: 002b:00007ffddd3e5e50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.118828][ T528] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcc5652854e [ 26.118830][ T528] RDX: 0000000000000000 RSI: 00007ffddd3e5f00 RDI: 0000000000000005 [ 26.118830][ T528] RBP: 00007ffddd3e5e60 R08: 0000000000000000 R09: 0000000000000000 [ 26.118831][ T528] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916359 Finger prints: __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:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print