====================================== | [ 23.737079][ T374] softirqs last disabled at (0): 0x0 | [ 23.737084][ T374] Preemption disabled at: | [ 23.737085][ T374] vprintk_emit (kernel/printk/printk.c:2471) | [ 23.737097][ T374] Tainted: [W]=WARN [ 23.737098][ T374] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 23.737101][ T374] Workqueue: events_power_efficient phylink_resolve [ 23.737105][ T374] Call Trace: [ 23.737107][ T374] [ 23.737110][ T374] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.737115][ T374] ? vprintk_emit (kernel/printk/printk.c:2471) [ 23.737117][ T374] __might_resched.cold (kernel/sched/core.c:9234) [ 23.737127][ T374] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.737131][ T374] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.737137][ T374] __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)) [ 23.737139][ T374] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.737145][ T374] ? 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) [ 23.737148][ T374] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.737151][ T374] put_chars (drivers/char/virtio_console.c:1176) [ 23.737155][ T374] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.737157][ T374] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 23.737160][ T374] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.737163][ T374] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.737167][ T374] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.737171][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.737172][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.737177][ T374] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.737180][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.737183][ T374] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.737187][ T374] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.737191][ T374] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.737195][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.737198][ T374] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.737202][ T374] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.737206][ T374] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.737208][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.737213][ T374] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.737215][ T374] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.737217][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.737219][ T374] ? 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)) [ 23.737223][ T374] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.737225][ T374] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.737228][ T374] vprintk_emit (kernel/printk/printk.c:2479) [ 23.737232][ T374] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.737234][ T374] ? wakeup_preempt_fair (kernel/sched/fair.c:1142 kernel/sched/fair.c:10033) [ 23.737240][ T374] dev_vprintk_emit (drivers/base/core.c:5000) [ 23.737245][ T374] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 23.737250][ T374] ? _raw_spin_unlock_irq_enable (./include/linux/spinlock_api_smp.h:229 (discriminator 1) kernel/locking/spinlock.c:237 (discriminator 1)) [ 23.737254][ T374] ? try_to_wake_up (./include/linux/preempt.h:500 (discriminator 1) kernel/sched/core.c:4263 (discriminator 1)) [ 23.737259][ T374] dev_printk_emit (drivers/base/core.c:5011) [ 23.737261][ T374] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 23.737264][ T374] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.737267][ T374] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.737272][ T374] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 23.737278][ T374] netdev_printk (net/core/dev.c:13166) [ 23.737280][ T374] ? __netdev_printk (net/core/dev.c:13151 (discriminator 1)) [ 23.737283][ T374] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 23.737286][ T374] ? fbnic_mac_link_down_asic (drivers/net/ethernet/meta/fbnic/fbnic_mac.c:708) [ 23.737290][ T374] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.737292][ T374] ? queue_delayed_work_on (kernel/workqueue.c:2673 (discriminator 6)) [ 23.737295][ T374] ? fbnic_phylink_mac_link_down (drivers/net/ethernet/meta/fbnic/fbnic_phylink.c:156) [ 23.737299][ T374] phylink_resolve (drivers/net/phy/phylink.c:1720) [ 23.737301][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.737304][ T374] ? phylink_ethtool_ksettings_set (drivers/net/phy/phylink.c:189 (discriminator 1)) [ 23.737308][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.737310][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.737312][ T374] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.737314][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.737318][ T374] process_one_work (kernel/workqueue.c:3387) [ 23.737324][ T374] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.737327][ T374] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.737334][ T374] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.737338][ T374] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.737340][ T374] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 23.737343][ T374] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.737346][ T374] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.737347][ T374] kthread (kernel/kthread.c:436) [ 23.737349][ T374] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.737353][ T374] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.737356][ T374] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.737360][ T374] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.737362][ T374] ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22)) [ 23.737365][ T374] ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144) [ 23.737367][ T374] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.737369][ T374] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print