====================================== | [ 12.303224][ T12] softirqs last disabled at (26262): __netdev_work_core_cancel (./include/linux/spinlock.h:353 net/core/netdev_work.c:55 net/core/netdev_work.c:115) | [ 12.303226][ T12] Preemption disabled at: | [ 12.303227][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.303235][ T12] Tainted: [W]=WARN [ 12.303236][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.303238][ T12] Workqueue: netns cleanup_net [ 12.303242][ T12] Call Trace: [ 12.303243][ T12] [ 12.303245][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.303251][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.303253][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 12.303257][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.303261][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.303265][ T12] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 12.303267][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.303274][ T12] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 12.303277][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.303281][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 12.303283][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.303288][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.303291][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.303296][ T12] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.303297][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.303299][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.303303][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.303306][ T12] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 12.303309][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.303312][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.303316][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.303319][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.303321][ T12] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 12.303325][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.303326][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.303330][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.303334][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.303336][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.303342][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.303344][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.303346][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.303348][ T12] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 12.303352][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.303353][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.303356][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 12.303359][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.303361][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.303364][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.303366][ T12] ? lockdep_rtnl_is_held (./include/linux/lockdep.h:249 net/core/rtnetlink.c:182) [ 12.303371][ T12] _printk (kernel/printk/printk.c:2504) [ 12.303374][ T12] ? snapshot_read.cold (user.c:?) [ 12.303378][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.303380][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 12.303383][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 12.303387][ T12] netdev_err (net/core/dev.c:13192 (discriminator 3)) [ 12.303390][ T12] ? netdev_crit (net/core/dev.c:13191) [ 12.303392][ T12] ? __local_bh_enable_ip (kernel/softirq.c:478) [ 12.303398][ T12] ? netif_rx_mode_sync (net/core/dev_addr_lists.c:1410) [ 12.303400][ T12] ? dev_change_flags (net/core/dev_api.c:69) [ 12.303402][ T12] ? __local_bh_enable_ip (kernel/softirq.c:478) [ 12.303405][ T12] vrf_dellink (drivers/net/vrf.c:1068 drivers/net/vrf.c:1629) [ 12.303409][ T12] ? vrf_map_unregister_dev (./include/linux/list.h:1045 (discriminator 2)) [ 12.303413][ T12] ? veth_dellink (./include/linux/netdevice.h:4548 ./include/linux/netdevice.h:4565 ./include/linux/netdevice.h:4561 drivers/net/veth.c:1967) [ 12.303417][ T12] default_device_exit_batch (net/core/dev.c:13280) [ 12.303420][ T12] ? unregister_netdevice_queue (./include/linux/list.h:173) [ 12.303422][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.303425][ T12] ? fou_exit_net (net/ipv4/fou_core.c:1228) [ 12.303429][ T12] ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253) [ 12.303433][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.303437][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 12.303438][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.303441][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 12.303446][ T12] cleanup_net (net/core/net_namespace.c:706) [ 12.303449][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 12.303453][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.303455][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.303458][ T12] process_one_work (kernel/workqueue.c:3387) [ 12.303465][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 12.303468][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.303478][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 12.303486][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 12.303488][ T12] kthread (kernel/kthread.c:436) [ 12.303490][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.303494][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 12.303496][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 12.303501][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 12.303504][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 12.303507][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: __netdev_work_core_cancel:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars