====================================== | [ 11.747413][ T242] softirqs last disabled at (33899): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.747415][ T242] Preemption disabled at: | [ 11.747416][ T242] 0x0 | [ 11.747427][ T242] Tainted: [W]=WARN [ 11.747428][ T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.747429][ T242] Call Trace: [ 11.747431][ T242] [ 11.747433][ T242] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.747439][ T242] __might_resched.cold (kernel/sched/core.c:9234) [ 11.747444][ T242] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.747448][ T242] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.747452][ T242] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 11.747454][ T242] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.747461][ T242] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 11.747464][ T242] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.747468][ T242] put_chars (drivers/char/virtio_console.c:1176) [ 11.747470][ T242] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.747471][ T242] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.747475][ T242] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.747481][ T242] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.747488][ T242] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.747491][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.747493][ T242] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.747497][ T242] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.747501][ T242] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.747503][ T242] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 11.747506][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.747508][ T242] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.747512][ T242] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.747516][ T242] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.747518][ T242] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.747523][ T242] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.747526][ T242] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.747528][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.747530][ T242] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 11.747533][ T242] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.747535][ T242] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.747538][ T242] vprintk_emit (kernel/printk/printk.c:2479) [ 11.747541][ T242] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.747544][ T242] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.747548][ T242] _printk (kernel/printk/printk.c:2504) [ 11.747551][ T242] ? snapshot_read.cold (user.c:?) [ 11.747554][ T242] ? 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) [ 11.747557][ T242] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.747561][ T242] ? 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) [ 11.747563][ T242] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.747567][ T242] ? exit_notify (kernel/exit.c:780) [ 11.747569][ T242] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.747571][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.747575][ T242] do_group_exit (kernel/exit.c:1151) [ 11.747578][ T242] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.747580][ T242] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.747582][ T242] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.747586][ T242] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.747589][ T242] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.747591][ T242] RIP: 0033:0x7f0ee41731b8 [ 11.747594][ T242] Code: Unable to access opcode bytes at 0x7f0ee417318e. Code starting with the faulting instruction =========================================== [ 11.747595][ T242] RSP: 002b:00007ffd16e3bab8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.747597][ T242] RAX: ffffffffffffffda RBX: 00007f0ee42a3f88 RCX: 00007f0ee41731b8 [ 11.747598][ T242] RDX: 00007f0ee3ebdfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.747599][ T242] RBP: 00007ffd16e3bb10 R08: 0000000000000000 R09: 0000000000008010 [ 11.747600][ T242] R10: 00007ffd16e3b8d0 R11: 0000000000000246 R12: 0000000000000001 [ 11.747601][ T242] R13: 0000000000000000 R14: 00007f0ee42a2680 R15: 00007f0ee42a3fa0 | [ 25.366051][ T68] softirqs last disabled at (16906): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 25.366053][ T68] Preemption disabled at: | [ 25.366054][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 25.366063][ T68] Tainted: [W]=WARN [ 25.366064][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.366066][ T68] Workqueue: netns cleanup_net [ 25.366069][ T68] Call Trace: [ 25.366071][ T68] [ 25.366073][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.366082][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 25.366084][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 25.366089][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.366093][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.366098][ T68] __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)) [ 25.366100][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.366106][ T68] ? 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) [ 25.366109][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.366113][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 25.366115][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.366119][ T68] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 25.366124][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.366127][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.366133][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.366136][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.366147][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.366151][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.366153][ T68] ? 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)) [ 25.366157][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.366160][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.366164][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.366169][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.366171][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.366176][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.366179][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.366181][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.366183][ T68] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 25.366187][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.366188][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.366191][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 25.366195][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.366196][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 25.366198][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 25.366200][ T68] ? kthread (kernel/kthread.c:436) [ 25.366202][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 25.366205][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 25.366210][ T68] _printk (kernel/printk/printk.c:2504) [ 25.366213][ T68] ? snapshot_read.cold (user.c:?) [ 25.366218][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 25.366222][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 25.366226][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 25.366229][ T68] ? netdev_notice (net/core/dev.c:13194) [ 25.366233][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.366235][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 25.366238][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 25.366240][ T68] ? 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) [ 25.366242][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 25.366246][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 25.366250][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 25.366254][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 25.366255][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 25.366261][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 25.366265][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 25.366268][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 25.366272][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 25.366276][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 25.366277][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.366280][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 25.366285][ T68] cleanup_net (net/core/net_namespace.c:706) [ 25.366288][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 25.366292][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.366294][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.366298][ T68] process_one_work (kernel/workqueue.c:3387) [ 25.366304][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 25.366307][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.366315][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 25.366319][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 25.366321][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 25.366324][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 25.366327][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 25.366329][ T68] kthread (kernel/kthread.c:436) [ 25.366331][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 25.366334][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 25.366337][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 25.366340][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 25.366344][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 25.366347][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 25.366350][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 28.188892][ T474] softirqs last disabled at (27658): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 28.188895][ T474] Preemption disabled at: | [ 28.188896][ T474] vprintk_emit (kernel/printk/printk.c:2471) | [ 28.188904][ T474] Tainted: [W]=WARN [ 28.188905][ T474] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.188907][ T474] Call Trace: [ 28.188908][ T474] [ 28.188910][ T474] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.188916][ T474] ? vprintk_emit (kernel/printk/printk.c:2471) [ 28.188918][ T474] __might_resched.cold (kernel/sched/core.c:9234) [ 28.188923][ T474] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.188927][ T474] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.188931][ T474] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 28.188933][ T474] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.188940][ T474] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 28.188943][ T474] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.188947][ T474] put_chars (drivers/char/virtio_console.c:1176) [ 28.188949][ T474] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.188956][ T474] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.188964][ T474] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.188967][ T474] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.188972][ T474] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.188976][ T474] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.188978][ T474] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 28.188982][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.188984][ T474] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.188989][ T474] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.188993][ T474] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.188995][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.189001][ T474] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.189004][ T474] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.189006][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.189008][ T474] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 28.189011][ T474] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.189013][ T474] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.189016][ T474] vprintk_emit (kernel/printk/printk.c:2479) [ 28.189020][ T474] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.189022][ T474] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 28.189028][ T474] _printk (kernel/printk/printk.c:2504) [ 28.189031][ T474] ? snapshot_read.cold (user.c:?) [ 28.189033][ T474] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.189036][ T474] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.189039][ T474] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.189041][ T474] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 28.189045][ T474] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 28.189048][ T474] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.189050][ T474] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 28.189053][ T474] ? netdev_notice (net/core/dev.c:13194) [ 28.189056][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.189059][ T474] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.189062][ T474] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 28.189066][ T474] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.189068][ T474] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 28.189070][ T474] ? register_netdev (net/core/dev.c:11618) [ 28.189072][ T474] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 28.189077][ T474] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 28.189084][ T474] ? __kernel_text_address (kernel/extable.c:79) [ 28.189087][ T474] ? write_profile (profile.c:?) [ 28.189093][ T474] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 28.189099][ T474] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.189102][ T474] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.189105][ T474] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.189106][ T474] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.189108][ T474] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.189112][ T474] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.189114][ T474] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.189116][ T474] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.189118][ T474] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.189120][ T474] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.189122][ T474] ? kasan_save_track (mm/kasan/common.c:78) [ 28.189123][ T474] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.189125][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.189127][ T474] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.189130][ T474] ? ___sys_sendmsg (net/socket.c:2758) [ 28.189134][ T474] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.189137][ T474] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.189139][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.189141][ T474] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.189143][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.189144][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.189150][ T474] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.189153][ T474] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 28.189154][ T474] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.189156][ T474] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.189160][ T474] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.189161][ T474] ? nla_get_range_signed (lib/nlattr.c:270) [ 28.189166][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.189169][ T474] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.189174][ T474] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.189180][ T474] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.189182][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.189186][ T474] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.189188][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.189190][ T474] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.189192][ T474] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.189196][ T474] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.189198][ T474] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.189202][ T474] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.189203][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.189208][ T474] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.189210][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.189213][ T474] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.189216][ T474] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.189219][ T474] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.189226][ T474] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 28.189228][ T474] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 28.189233][ T474] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.189237][ T474] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.189240][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.189244][ T474] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.189248][ T474] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.189252][ T474] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.189254][ T474] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.189260][ T474] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.189263][ T474] ____sys_sendmsg (net/socket.c:2713) [ 28.189265][ T474] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.189267][ T474] ? sock_write_iter (net/socket.c:1269) [ 28.189269][ T474] ? move_addr_to_kernel (net/socket.c:258) [ 28.189277][ T474] ___sys_sendmsg (net/socket.c:2767) [ 28.189280][ T474] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.189296][ T474] __sys_sendmsg (net/socket.c:2799) [ 28.189299][ T474] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.189306][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.189309][ T474] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.189312][ T474] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.189315][ T474] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.189317][ T474] RIP: 0033:0x7fcccd44054e [ 28.189322][ T474] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 28.189323][ T474] RSP: 002b:00007ffc6418bce0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.189326][ T474] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fcccd44054e [ 28.189328][ T474] RDX: 0000000000000000 RSI: 00007ffc6418bd90 RDI: 0000000000000005 [ 28.189329][ T474] RBP: 00007ffc6418bcf0 R08: 0000000000000000 R09: 0000000000000000 [ 28.189329][ T474] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de43 [ 28.189330][ T474] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6418c460 | [ 29.256384][ T497] softirqs last disabled at (21914): addrconf_permanent_addr (net/ipv6/addrconf.c:3651) | [ 29.256386][ T497] Preemption disabled at: | [ 29.256387][ T497] vprintk_emit (kernel/printk/printk.c:2471) | [ 29.256395][ T497] Tainted: [W]=WARN [ 29.256396][ T497] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.256398][ T497] Call Trace: [ 29.256400][ T497] [ 29.256401][ T497] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.256407][ T497] ? vprintk_emit (kernel/printk/printk.c:2471) [ 29.256409][ T497] __might_resched.cold (kernel/sched/core.c:9234) [ 29.256413][ T497] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.256418][ T497] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 29.256422][ T497] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 29.256424][ T497] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.256431][ T497] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 29.256433][ T497] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.256437][ T497] put_chars (drivers/char/virtio_console.c:1176) [ 29.256440][ T497] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.256441][ T497] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.256445][ T497] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.256451][ T497] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.256458][ T497] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.256461][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256463][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.256467][ T497] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.256472][ T497] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.256473][ T497] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 29.256477][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256479][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.256483][ T497] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.256487][ T497] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.256489][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.256495][ T497] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.256498][ T497] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.256500][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256501][ T497] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 29.256505][ T497] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.256507][ T497] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.256510][ T497] vprintk_emit (kernel/printk/printk.c:2479) [ 29.256513][ T497] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.256515][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.256518][ T497] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 29.256522][ T497] _printk (kernel/printk/printk.c:2504) [ 29.256525][ T497] ? snapshot_read.cold (user.c:?) [ 29.256529][ T497] ? br_multicast_flood (??:?) [ 29.256532][ T497] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 29.256534][ T497] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 29.256535][ T497] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 29.256540][ T497] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 29.256544][ T497] br_init_port (net/bridge/br_stp_if.c:39) [ 29.256547][ T497] new_nbp (net/bridge/br_if.c:449) [ 29.256551][ T497] br_add_if (net/bridge/br_if.c:592) [ 29.256553][ T497] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 29.256557][ T497] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 29.256563][ T497] do_set_master (net/core/rtnetlink.c:3071) [ 29.256564][ T497] ? netif_change_flags (net/core/dev.c:9882) [ 29.256568][ T497] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 29.256572][ T497] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 29.256576][ T497] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 29.256577][ T497] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 29.256579][ T497] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 29.256583][ T497] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.256585][ T497] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.256587][ T497] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.256589][ T497] ? kasan_save_stack (mm/kasan/common.c:58) [ 29.256592][ T497] ? kasan_save_stack (mm/kasan/common.c:57) [ 29.256593][ T497] ? kasan_save_track (mm/kasan/common.c:78) [ 29.256594][ T497] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 29.256597][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.256599][ T497] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 29.256601][ T497] ? ___sys_sendmsg (net/socket.c:2758) [ 29.256605][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.256607][ T497] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.256610][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256612][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.256614][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256615][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256616][ T497] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 29.256619][ T497] ? __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) [ 29.256621][ T497] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 29.256623][ T497] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.256627][ T497] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 29.256628][ T497] ? nla_get_range_signed (lib/nlattr.c:270) [ 29.256633][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256635][ T497] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 29.256641][ T497] rtnl_newlink (net/core/rtnetlink.c:4215) [ 29.256646][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.256648][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.256653][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.256655][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.256657][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.256659][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.256663][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.256665][ T497] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 29.256668][ T497] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.256669][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.256674][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.256676][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.256679][ T497] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 29.256682][ T497] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.256685][ T497] ? netlink_ack (./include/linux/skbuff.h:2718) [ 29.256692][ T497] ? 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)) [ 29.256694][ T497] ? 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)) [ 29.256699][ T497] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 29.256703][ T497] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 29.256706][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.256710][ T497] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 29.256714][ T497] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 29.256718][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.256720][ T497] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 29.256725][ T497] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 29.256728][ T497] ____sys_sendmsg (net/socket.c:2713) [ 29.256730][ T497] ? copy_msghdr_from_user (net/socket.c:2650) [ 29.256733][ T497] ? sock_write_iter (net/socket.c:1269) [ 29.256734][ T497] ? move_addr_to_kernel (net/socket.c:258) [ 29.256742][ T497] ___sys_sendmsg (net/socket.c:2767) [ 29.256745][ T497] ? copy_msghdr_from_user (net/socket.c:2619) [ 29.256762][ T497] __sys_sendmsg (net/socket.c:2799) [ 29.256765][ T497] ? __sys_sendmsg_sock (net/socket.c:2780) [ 29.256771][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.256774][ T497] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 29.256777][ T497] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 29.256780][ T497] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 29.256782][ T497] RIP: 0033:0x7f3ce9ac254e [ 29.256786][ T497] 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 [ 29.256788][ T497] RSP: 002b:00007ffc11ceb500 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 29.256790][ T497] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f3ce9ac254e [ 29.256792][ T497] RDX: 0000000000000000 RSI: 00007ffc11ceb5b0 RDI: 0000000000000005 [ 29.256793][ T497] RBP: 00007ffc11ceb510 R08: 0000000000000000 R09: 0000000000000000 [ 29.256794][ T497] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de44 [ 29.256794][ T497] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc11cebc80 | [ 42.495431][ T68] softirqs last disabled at (169926): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 42.495434][ T68] Preemption disabled at: | [ 42.495434][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 42.495443][ T68] Tainted: [W]=WARN [ 42.495443][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.495445][ T68] Workqueue: netns cleanup_net [ 42.495449][ T68] Call Trace: [ 42.495451][ T68] [ 42.495453][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 42.495459][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 42.495461][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 42.495465][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 42.495469][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 42.495474][ T68] __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)) [ 42.495476][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.495482][ T68] ? 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) [ 42.495485][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.495489][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 42.495491][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 42.495493][ T68] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 42.495497][ T68] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 42.495499][ T68] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 42.495504][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 42.495508][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.495513][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 42.495516][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.495521][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 42.495525][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 42.495527][ T68] ? 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)) [ 42.495530][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.495532][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.495536][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 42.495541][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 42.495543][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.495548][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 42.495551][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 42.495553][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.495555][ T68] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 42.495558][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 42.495560][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 42.495563][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 42.495566][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 42.495568][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 42.495569][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 42.495571][ T68] ? kthread (kernel/kthread.c:436) [ 42.495573][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 42.495576][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 42.495581][ T68] _printk (kernel/printk/printk.c:2504) [ 42.495584][ T68] ? snapshot_read.cold (user.c:?) [ 42.495589][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 42.495593][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 42.495597][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 42.495600][ T68] ? netdev_notice (net/core/dev.c:13194) [ 42.495604][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.495606][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 42.495609][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 42.495611][ T68] ? 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) [ 42.495613][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 42.495617][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 42.495621][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 42.495624][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 42.495626][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 42.495631][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 42.495634][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 42.495638][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 42.495641][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 42.495645][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 42.495646][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.495649][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 42.495654][ T68] cleanup_net (net/core/net_namespace.c:706) [ 42.495657][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 42.495661][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.495663][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.495667][ T68] process_one_work (kernel/workqueue.c:3387) [ 42.495673][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 42.495676][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.495684][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 42.495688][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 42.495691][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 42.495694][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 42.495696][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 42.495699][ T68] kthread (kernel/kthread.c:436) [ 42.495700][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 42.495704][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 42.495707][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 42.495710][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 42.495713][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 42.495717][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 42.495720][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 44.966687][ T713] softirqs last disabled at (24016): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 44.966690][ T713] Preemption disabled at: | [ 44.966690][ T713] vprintk_emit (kernel/printk/printk.c:2471) | [ 44.966699][ T713] Tainted: [W]=WARN [ 44.966700][ T713] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 44.966702][ T713] Call Trace: [ 44.966703][ T713] [ 44.966705][ T713] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 44.966710][ T713] ? vprintk_emit (kernel/printk/printk.c:2471) [ 44.966712][ T713] __might_resched.cold (kernel/sched/core.c:9234) [ 44.966717][ T713] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 44.966721][ T713] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 44.966725][ T713] __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)) [ 44.966727][ T713] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.966733][ T713] ? 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) [ 44.966736][ T713] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.966740][ T713] put_chars (drivers/char/virtio_console.c:1176) [ 44.966742][ T713] ? __send_to_port (drivers/char/virtio_console.c:654) [ 44.966748][ T713] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 44.966756][ T713] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 44.966759][ T713] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.966763][ T713] console_emit_next_record (kernel/printk/printk.c:3183) [ 44.966767][ T713] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 44.966769][ T713] ? 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)) [ 44.966772][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.966774][ T713] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.966778][ T713] console_flush_one_record (kernel/printk/printk.c:3268) [ 44.966782][ T713] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 44.966784][ T713] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.966789][ T713] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 44.966792][ T713] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 44.966794][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.966796][ T713] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 44.966799][ T713] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 44.966801][ T713] ? vprintk_emit (kernel/printk/printk.c:2478) [ 44.966804][ T713] vprintk_emit (kernel/printk/printk.c:2479) [ 44.966807][ T713] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 44.966809][ T713] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 44.966814][ T713] _printk (kernel/printk/printk.c:2504) [ 44.966818][ T713] ? snapshot_read.cold (user.c:?) [ 44.966820][ T713] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 44.966823][ T713] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 44.966825][ T713] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 44.966827][ T713] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 44.966831][ T713] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 44.966834][ T713] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 44.966836][ T713] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 44.966839][ T713] ? netdev_notice (net/core/dev.c:13194) [ 44.966842][ T713] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.966845][ T713] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.966847][ T713] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 44.966851][ T713] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 44.966853][ T713] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 44.966855][ T713] ? register_netdev (net/core/dev.c:11618) [ 44.966856][ T713] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 44.966861][ T713] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 44.966864][ T713] ? __kernel_text_address (kernel/extable.c:79) [ 44.966867][ T713] ? write_profile (profile.c:?) [ 44.966871][ T713] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 44.966876][ T713] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 44.966879][ T713] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 44.966882][ T713] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 44.966883][ T713] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 44.966885][ T713] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 44.966888][ T713] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 44.966890][ T713] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 44.966892][ T713] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 44.966894][ T713] ? kasan_save_stack (mm/kasan/common.c:58) [ 44.966896][ T713] ? kasan_save_stack (mm/kasan/common.c:57) [ 44.966898][ T713] ? kasan_save_track (mm/kasan/common.c:78) [ 44.966899][ T713] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 44.966901][ T713] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.966903][ T713] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 44.966906][ T713] ? ___sys_sendmsg (net/socket.c:2758) [ 44.966910][ T713] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 44.966911][ T713] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 44.966914][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.966916][ T713] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.966917][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.966918][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.966920][ T713] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 44.966922][ T713] ? __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) [ 44.966924][ T713] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 44.966925][ T713] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 44.966929][ T713] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 44.966930][ T713] ? nla_get_range_signed (lib/nlattr.c:270) [ 44.966935][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.966937][ T713] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 44.966942][ T713] rtnl_newlink (net/core/rtnetlink.c:4215) [ 44.966947][ T713] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 44.966949][ T713] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.966954][ T713] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 44.966955][ T713] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.966957][ T713] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 44.966959][ T713] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.966963][ T713] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 44.966965][ T713] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 44.966968][ T713] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 44.966969][ T713] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.966973][ T713] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 44.966975][ T713] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.966978][ T713] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 44.966982][ T713] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 44.966984][ T713] ? netlink_ack (./include/linux/skbuff.h:2718) [ 44.966991][ T713] ? 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)) [ 44.966993][ T713] ? 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)) [ 44.966997][ T713] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 44.967001][ T713] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 44.967004][ T713] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.967008][ T713] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 44.967012][ T713] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 44.967016][ T713] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.967017][ T713] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 44.967022][ T713] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 44.967025][ T713] ____sys_sendmsg (net/socket.c:2713) [ 44.967027][ T713] ? copy_msghdr_from_user (net/socket.c:2650) [ 44.967030][ T713] ? sock_write_iter (net/socket.c:1269) [ 44.967031][ T713] ? move_addr_to_kernel (net/socket.c:258) [ 44.967038][ T713] ___sys_sendmsg (net/socket.c:2767) [ 44.967041][ T713] ? copy_msghdr_from_user (net/socket.c:2619) [ 44.967057][ T713] __sys_sendmsg (net/socket.c:2799) [ 44.967059][ T713] ? __sys_sendmsg_sock (net/socket.c:2780) [ 44.967066][ T713] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.967068][ T713] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 44.967071][ T713] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 44.967074][ T713] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 44.967077][ T713] RIP: 0033:0x7f5b6dede54e [ 44.967084][ T713] 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 [ 44.967085][ T713] RSP: 002b:00007ffe264c82d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 44.967088][ T713] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f5b6dede54e [ 44.967090][ T713] RDX: 0000000000000000 RSI: 00007ffe264c8380 RDI: 0000000000000005 [ 44.967090][ T713] RBP: 00007ffe264c82e0 R08: 0000000000000000 R09: 0000000000000000 [ 44.967091][ T713] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de54 [ 44.967092][ T713] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe264c8a50 | [ 58.554517][ T68] softirqs last disabled at (358822): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 58.554520][ T68] Preemption disabled at: | [ 58.554521][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 58.554531][ T68] Tainted: [W]=WARN [ 58.554532][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 58.554534][ T68] Workqueue: netns cleanup_net [ 58.554537][ T68] Call Trace: [ 58.554539][ T68] [ 58.554542][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 58.554548][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 58.554550][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 58.554555][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 58.554559][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 58.554564][ T68] __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)) [ 58.554565][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 58.554572][ T68] ? 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) [ 58.554575][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 58.554579][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 58.554582][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 58.554583][ T68] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 58.554587][ T68] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 58.554590][ T68] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 58.554595][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 58.554599][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 58.554606][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 58.554609][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.554615][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 58.554619][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 58.554621][ T68] ? 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)) [ 58.554625][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.554627][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 58.554632][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 58.554637][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 58.554639][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 58.554645][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 58.554649][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 58.554651][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.554652][ T68] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 58.554656][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 58.554658][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 58.554661][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 58.554664][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 58.554666][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 58.554668][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 58.554669][ T68] ? kthread (kernel/kthread.c:436) [ 58.554672][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 58.554675][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 58.554681][ T68] _printk (kernel/printk/printk.c:2504) [ 58.554684][ T68] ? snapshot_read.cold (user.c:?) [ 58.554689][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 58.554693][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 58.554698][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 58.554701][ T68] ? netdev_notice (net/core/dev.c:13194) [ 58.554706][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.554707][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 58.554710][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 58.554712][ T68] ? 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) [ 58.554715][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 58.554720][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 58.554724][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 58.554727][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 58.554729][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 58.554735][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 58.554739][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 58.554743][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 58.554747][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 58.554751][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 58.554753][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 58.554757][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 58.554762][ T68] cleanup_net (net/core/net_namespace.c:706) [ 58.554766][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 58.554770][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 58.554772][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.554776][ T68] process_one_work (kernel/workqueue.c:3387) [ 58.554783][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 58.554787][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 58.554795][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 58.554800][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 58.554802][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 58.554805][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 58.554808][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 58.554811][ T68] kthread (kernel/kthread.c:436) [ 58.554812][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 58.554816][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 58.554820][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 58.554823][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 58.554827][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 58.554831][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 58.554834][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 61.163671][ T952] softirqs last disabled at (22692): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 61.163674][ T952] Preemption disabled at: | [ 61.163675][ T952] vprintk_emit (kernel/printk/printk.c:2471) | [ 61.163686][ T952] Tainted: [W]=WARN [ 61.163687][ T952] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 61.163689][ T952] Call Trace: [ 61.163691][ T952] [ 61.163694][ T952] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 61.163701][ T952] ? vprintk_emit (kernel/printk/printk.c:2471) [ 61.163703][ T952] __might_resched.cold (kernel/sched/core.c:9234) [ 61.163709][ T952] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 61.163715][ T952] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 61.163722][ T952] __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)) [ 61.163725][ T952] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 61.163734][ T952] ? 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) [ 61.163737][ T952] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 61.163743][ T952] put_chars (drivers/char/virtio_console.c:1176) [ 61.163747][ T952] ? __send_to_port (drivers/char/virtio_console.c:654) [ 61.163757][ T952] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 61.163769][ T952] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 61.163774][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.163781][ T952] console_emit_next_record (kernel/printk/printk.c:3183) [ 61.163787][ T952] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 61.163790][ T952] ? 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)) [ 61.163795][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.163798][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.163805][ T952] console_flush_one_record (kernel/printk/printk.c:3268) [ 61.163812][ T952] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 61.163814][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.163823][ T952] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 61.163828][ T952] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 61.163830][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.163833][ T952] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 61.163839][ T952] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 61.163841][ T952] ? vprintk_emit (kernel/printk/printk.c:2478) [ 61.163846][ T952] vprintk_emit (kernel/printk/printk.c:2479) [ 61.163851][ T952] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 61.163856][ T952] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 61.163863][ T952] _printk (kernel/printk/printk.c:2504) [ 61.163868][ T952] ? snapshot_read.cold (user.c:?) [ 61.163870][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 61.163875][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 61.163878][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 61.163882][ T952] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 61.163887][ T952] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 61.163891][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.163895][ T952] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 61.163898][ T952] ? netdev_notice (net/core/dev.c:13194) [ 61.163903][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.163907][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.163911][ T952] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 61.163917][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.163920][ T952] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 61.163924][ T952] ? register_netdev (net/core/dev.c:11618) [ 61.163926][ T952] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 61.163934][ T952] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 61.163937][ T952] ? __kernel_text_address (kernel/extable.c:79) [ 61.163941][ T952] ? write_profile (profile.c:?) [ 61.163947][ T952] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 61.163955][ T952] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.163961][ T952] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 61.163964][ T952] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 61.163966][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 61.163969][ T952] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 61.163974][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 61.163977][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 61.163979][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 61.163983][ T952] ? kasan_save_stack (mm/kasan/common.c:58) [ 61.163986][ T952] ? kasan_save_stack (mm/kasan/common.c:57) [ 61.163988][ T952] ? kasan_save_track (mm/kasan/common.c:78) [ 61.163990][ T952] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 61.163993][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.163996][ T952] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 61.164000][ T952] ? ___sys_sendmsg (net/socket.c:2758) [ 61.164006][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.164009][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 61.164013][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.164016][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.164018][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.164020][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.164023][ T952] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 61.164027][ T952] ? __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) [ 61.164028][ T952] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 61.164032][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 61.164038][ T952] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 61.164039][ T952] ? nla_get_range_signed (lib/nlattr.c:270) [ 61.164047][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.164051][ T952] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 61.164060][ T952] rtnl_newlink (net/core/rtnetlink.c:4215) [ 61.164069][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.164072][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.164084][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.164086][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.164089][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.164092][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.164099][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.164102][ T952] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 61.164107][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 61.164109][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.164117][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.164120][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.164125][ T952] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 61.164129][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 61.164134][ T952] ? netlink_ack (./include/linux/skbuff.h:2718) [ 61.164145][ T952] ? 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)) [ 61.164148][ T952] ? 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)) [ 61.164156][ T952] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 61.164162][ T952] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 61.164166][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.164173][ T952] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 61.164180][ T952] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 61.164186][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.164188][ T952] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 61.164196][ T952] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 61.164201][ T952] ____sys_sendmsg (net/socket.c:2713) [ 61.164204][ T952] ? copy_msghdr_from_user (net/socket.c:2650) [ 61.164213][ T952] ? sock_write_iter (net/socket.c:1269) [ 61.164215][ T952] ? move_addr_to_kernel (net/socket.c:258) [ 61.164228][ T952] ___sys_sendmsg (net/socket.c:2767) [ 61.164232][ T952] ? copy_msghdr_from_user (net/socket.c:2619) [ 61.164261][ T952] __sys_sendmsg (net/socket.c:2799) [ 61.164265][ T952] ? __sys_sendmsg_sock (net/socket.c:2780) [ 61.164276][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.164281][ T952] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 61.164284][ T952] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 61.164289][ T952] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 61.164292][ T952] RIP: 0033:0x7f277057654e [ 61.164297][ T952] 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 [ 61.164299][ T952] RSP: 002b:00007ffc3015cf60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 61.164302][ T952] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f277057654e [ 61.164304][ T952] RDX: 0000000000000000 RSI: 00007ffc3015d010 RDI: 0000000000000005 [ 61.164306][ T952] RBP: 00007ffc3015cf70 R08: 0000000000000000 R09: 0000000000000000 [ 61.164307][ T952] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de64 [ 61.164308][ T952] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc3015d6e0 | [ 62.205382][ T976] softirqs last disabled at (17424): addrconf_permanent_addr (net/ipv6/addrconf.c:3651) | [ 62.205385][ T976] Preemption disabled at: | [ 62.205386][ T976] vprintk_emit (kernel/printk/printk.c:2471) | [ 62.205397][ T976] Tainted: [W]=WARN [ 62.205398][ T976] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 62.205401][ T976] Call Trace: [ 62.205403][ T976] [ 62.205405][ T976] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 62.205412][ T976] ? vprintk_emit (kernel/printk/printk.c:2471) [ 62.205415][ T976] __might_resched.cold (kernel/sched/core.c:9234) [ 62.205421][ T976] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 62.205427][ T976] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 62.205434][ T976] __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)) [ 62.205437][ T976] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 62.205446][ T976] ? 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) [ 62.205449][ T976] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 62.205455][ T976] put_chars (drivers/char/virtio_console.c:1176) [ 62.205459][ T976] ? __send_to_port (drivers/char/virtio_console.c:654) [ 62.205461][ T976] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 62.205466][ T976] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 62.205476][ T976] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 62.205488][ T976] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 62.205492][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205495][ T976] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 62.205502][ T976] console_emit_next_record (kernel/printk/printk.c:3183) [ 62.205508][ T976] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 62.205511][ T976] ? 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)) [ 62.205516][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205519][ T976] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 62.205526][ T976] console_flush_one_record (kernel/printk/printk.c:3268) [ 62.205533][ T976] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 62.205536][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.205545][ T976] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 62.205550][ T976] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 62.205552][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205555][ T976] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 62.205562][ T976] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 62.205564][ T976] ? vprintk_emit (kernel/printk/printk.c:2478) [ 62.205569][ T976] vprintk_emit (kernel/printk/printk.c:2479) [ 62.205574][ T976] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 62.205577][ T976] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 62.205582][ T976] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 62.205588][ T976] _printk (kernel/printk/printk.c:2504) [ 62.205593][ T976] ? snapshot_read.cold (user.c:?) [ 62.205599][ T976] ? br_multicast_flood (??:?) [ 62.205603][ T976] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 62.205605][ T976] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 62.205607][ T976] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 62.205615][ T976] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 62.205622][ T976] br_init_port (net/bridge/br_stp_if.c:39) [ 62.205626][ T976] new_nbp (net/bridge/br_if.c:449) [ 62.205632][ T976] br_add_if (net/bridge/br_if.c:592) [ 62.205636][ T976] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 62.205641][ T976] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 62.205650][ T976] do_set_master (net/core/rtnetlink.c:3071) [ 62.205652][ T976] ? netif_change_flags (net/core/dev.c:9882) [ 62.205658][ T976] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 62.205664][ T976] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 62.205669][ T976] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 62.205671][ T976] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 62.205675][ T976] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 62.205680][ T976] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 62.205683][ T976] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 62.205686][ T976] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 62.205690][ T976] ? kasan_save_stack (mm/kasan/common.c:58) [ 62.205693][ T976] ? kasan_save_stack (mm/kasan/common.c:57) [ 62.205695][ T976] ? kasan_save_track (mm/kasan/common.c:78) [ 62.205697][ T976] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 62.205701][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.205704][ T976] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 62.205708][ T976] ? ___sys_sendmsg (net/socket.c:2758) [ 62.205714][ T976] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 62.205717][ T976] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 62.205721][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205724][ T976] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 62.205727][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205729][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205732][ T976] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 62.205735][ T976] ? __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) [ 62.205739][ T976] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 62.205742][ T976] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 62.205748][ T976] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 62.205750][ T976] ? nla_get_range_signed (lib/nlattr.c:270) [ 62.205758][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205762][ T976] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 62.205771][ T976] rtnl_newlink (net/core/rtnetlink.c:4215) [ 62.205781][ T976] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 62.205784][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.205792][ T976] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 62.205795][ T976] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 62.205798][ T976] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 62.205801][ T976] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 62.205808][ T976] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 62.205811][ T976] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 62.205817][ T976] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 62.205819][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.205826][ T976] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 62.205829][ T976] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 62.205835][ T976] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 62.205840][ T976] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 62.205845][ T976] ? netlink_ack (./include/linux/skbuff.h:2718) [ 62.205856][ T976] ? 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)) [ 62.205859][ T976] ? 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)) [ 62.205867][ T976] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 62.205874][ T976] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 62.205878][ T976] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 62.205885][ T976] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 62.205892][ T976] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 62.205899][ T976] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 62.205901][ T976] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 62.205909][ T976] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 62.205914][ T976] ____sys_sendmsg (net/socket.c:2713) [ 62.205918][ T976] ? copy_msghdr_from_user (net/socket.c:2650) [ 62.205921][ T976] ? sock_write_iter (net/socket.c:1269) [ 62.205923][ T976] ? move_addr_to_kernel (net/socket.c:258) [ 62.205937][ T976] ___sys_sendmsg (net/socket.c:2767) [ 62.205941][ T976] ? copy_msghdr_from_user (net/socket.c:2619) [ 62.205971][ T976] __sys_sendmsg (net/socket.c:2799) [ 62.205975][ T976] ? __sys_sendmsg_sock (net/socket.c:2780) [ 62.205986][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.205992][ T976] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 62.205996][ T976] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 62.206000][ T976] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 62.206004][ T976] RIP: 0033:0x7f9c15b1c54e [ 62.206009][ T976] 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 [ 62.206011][ T976] RSP: 002b:00007ffedf3bbe50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 62.206015][ T976] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f9c15b1c54e [ 62.206017][ T976] RDX: 0000000000000000 RSI: 00007ffedf3bbf00 RDI: 0000000000000005 [ 62.206018][ T976] RBP: 00007ffedf3bbe60 R08: 0000000000000000 R09: 0000000000000000 [ 62.206020][ T976] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de65 [ 62.206021][ T976] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffedf3bc5d0 | [ 75.298821][ T68] softirqs last disabled at (546762): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 75.298823][ T68] Preemption disabled at: | [ 75.298824][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 75.298833][ T68] Tainted: [W]=WARN [ 75.298834][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 75.298836][ T68] Workqueue: netns cleanup_net [ 75.298839][ T68] Call Trace: [ 75.298841][ T68] [ 75.298843][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 75.298850][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 75.298851][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 75.298856][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 75.298860][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 75.298866][ T68] __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)) [ 75.298868][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 75.298875][ T68] ? 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) [ 75.298877][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 75.298881][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 75.298884][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 75.298885][ T68] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 75.298889][ T68] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 75.298892][ T68] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 75.298898][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 75.298902][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 75.298908][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 75.298911][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.298916][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 75.298920][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 75.298922][ T68] ? 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)) [ 75.298926][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.298928][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 75.298932][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 75.298937][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 75.298939][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 75.298945][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 75.298949][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 75.298951][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.298952][ T68] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 75.298957][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 75.298959][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 75.298962][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 75.298965][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 75.298967][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 75.298969][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 75.298971][ T68] ? kthread (kernel/kthread.c:436) [ 75.298973][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 75.298976][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 75.298981][ T68] _printk (kernel/printk/printk.c:2504) [ 75.298986][ T68] ? snapshot_read.cold (user.c:?) [ 75.298991][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 75.298995][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 75.298999][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 75.299003][ T68] ? netdev_notice (net/core/dev.c:13194) [ 75.299008][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.299010][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 75.299012][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 75.299015][ T68] ? 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) [ 75.299018][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 75.299022][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 75.299026][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 75.299030][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 75.299031][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 75.299037][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 75.299041][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 75.299044][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 75.299049][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 75.299053][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 75.299054][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 75.299057][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 75.299063][ T68] cleanup_net (net/core/net_namespace.c:706) [ 75.299066][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 75.299070][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 75.299072][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.299075][ T68] process_one_work (kernel/workqueue.c:3387) [ 75.299087][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 75.299090][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 75.299100][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 75.299104][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 75.299107][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 75.299110][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 75.299113][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 75.299115][ T68] kthread (kernel/kthread.c:436) [ 75.299117][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 75.299120][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 75.299123][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 75.299126][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 75.299130][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 75.299134][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print addrconf_permanent_addr:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars