====================================== | [ 52.291418][ T109] softirqs last disabled at (0): 0x0 | [ 52.291422][ T109] Preemption disabled at: | [ 52.291422][ T109] vprintk_emit (kernel/printk/printk.c:2471) | [ 52.291431][ T109] Tainted: [W]=WARN [ 52.291432][ T109] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 52.291434][ T109] Workqueue: events_power_efficient phylink_resolve [ 52.291437][ T109] Call Trace: [ 52.291439][ T109] [ 52.291441][ T109] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 52.291447][ T109] ? vprintk_emit (kernel/printk/printk.c:2471) [ 52.291449][ T109] __might_resched.cold (kernel/sched/core.c:9234) [ 52.291454][ T109] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 52.291458][ T109] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 52.291463][ T109] __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)) [ 52.291465][ T109] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 52.291471][ T109] ? 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) [ 52.291474][ T109] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 52.291477][ T109] put_chars (drivers/char/virtio_console.c:1176) [ 52.291481][ T109] ? __send_to_port (drivers/char/virtio_console.c:654) [ 52.291482][ T109] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 52.291486][ T109] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 52.291489][ T109] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 52.291493][ T109] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 52.291496][ T109] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 52.291498][ T109] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 52.291502][ T109] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 52.291506][ T109] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 52.291508][ T109] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 52.291512][ T109] console_emit_next_record (kernel/printk/printk.c:3183) [ 52.291516][ T109] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 52.291520][ T109] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 52.291522][ T109] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 52.291526][ T109] console_flush_one_record (kernel/printk/printk.c:3268) [ 52.291530][ T109] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 52.291532][ T109] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 52.291537][ T109] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 52.291540][ T109] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 52.291542][ T109] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 52.291544][ T109] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 52.291547][ T109] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 52.291549][ T109] ? vprintk_emit (kernel/printk/printk.c:2478) [ 52.291552][ T109] vprintk_emit (kernel/printk/printk.c:2479) [ 52.291556][ T109] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 52.291559][ T109] ? wakeup_preempt_fair (kernel/sched/fair.c:1142 kernel/sched/fair.c:10033) [ 52.291564][ T109] dev_vprintk_emit (drivers/base/core.c:5000) [ 52.291569][ T109] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 52.291574][ T109] ? _raw_spin_unlock_irq_enable (./include/linux/spinlock_api_smp.h:229 (discriminator 1) kernel/locking/spinlock.c:237 (discriminator 1)) [ 52.291578][ T109] ? try_to_wake_up (./include/linux/preempt.h:500 (discriminator 1) kernel/sched/core.c:4263 (discriminator 1)) [ 52.291583][ T109] dev_printk_emit (drivers/base/core.c:5011) [ 52.291585][ T109] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 52.291588][ T109] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 52.291591][ T109] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 52.291595][ T109] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 52.291602][ T109] netdev_printk (net/core/dev.c:13166) [ 52.291604][ T109] ? __netdev_printk (net/core/dev.c:13151 (discriminator 1)) [ 52.291606][ T109] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 52.291610][ T109] ? fbnic_mac_link_down_asic (drivers/net/ethernet/meta/fbnic/fbnic_mac.c:708) [ 52.291613][ T109] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 52.291616][ T109] ? queue_delayed_work_on (kernel/workqueue.c:2673 (discriminator 6)) [ 52.291618][ T109] ? fbnic_phylink_mac_link_down (drivers/net/ethernet/meta/fbnic/fbnic_phylink.c:156) [ 52.291622][ T109] phylink_resolve (drivers/net/phy/phylink.c:1720) [ 52.291624][ T109] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 52.291628][ T109] ? phylink_ethtool_ksettings_set (drivers/net/phy/phylink.c:189 (discriminator 1)) [ 52.291632][ T109] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 52.291633][ T109] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 52.291635][ T109] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 52.291637][ T109] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 52.291641][ T109] process_one_work (kernel/workqueue.c:3387) [ 52.291647][ T109] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 52.291649][ T109] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 52.291657][ T109] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 52.291661][ T109] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 52.291662][ T109] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 52.291666][ T109] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 52.291669][ T109] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 52.291670][ T109] kthread (kernel/kthread.c:436) [ 52.291672][ T109] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 52.291676][ T109] ? kthread_affine_preferred (kernel/kthread.c:857) [ 52.291678][ T109] ret_from_fork (arch/x86/kernel/process.c:158) [ 52.291682][ T109] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 52.291685][ T109] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 52.291688][ T109] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print