====================================== | [ 10.110635][ T166] softirqs last disabled at (390771): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.110637][ T166] Preemption disabled at: | [ 10.110637][ T166] 0x0 | [ 10.110649][ T166] Tainted: [W]=WARN [ 10.110650][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.110651][ T166] Call Trace: [ 10.110653][ T166] [ 10.110654][ T166] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.110661][ T166] __might_resched.cold (kernel/sched/core.c:9234) [ 10.110665][ T166] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.110669][ T166] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.110674][ T166] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 10.110677][ T166] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.110686][ T166] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 10.110688][ T166] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.110692][ T166] put_chars (drivers/char/virtio_console.c:1176) [ 10.110695][ T166] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.110698][ T166] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.110703][ T166] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.110710][ T166] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.110712][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.110717][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.110721][ T166] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.110725][ T166] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.110727][ T166] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 10.110730][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.110732][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.110736][ T166] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.110740][ T166] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.110742][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.110747][ T166] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.110750][ T166] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.110752][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.110754][ T166] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.110758][ T166] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.110760][ T166] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.110763][ T166] vprintk_emit (kernel/printk/printk.c:2479) [ 10.110767][ T166] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.110770][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.110774][ T166] _printk (kernel/printk/printk.c:2504) [ 10.110778][ T166] ? snapshot_read.cold (user.c:?) [ 10.110780][ T166] ? 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) [ 10.110783][ T166] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.110787][ T166] ? 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) [ 10.110789][ T166] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.110793][ T166] ? exit_notify (kernel/exit.c:780) [ 10.110795][ T166] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.110798][ T166] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.110799][ T166] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.110803][ T166] do_group_exit (kernel/exit.c:1151) [ 10.110804][ T166] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 10.110806][ T166] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.110809][ T166] ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:219 kernel/locking/spinlock.c:229) [ 10.110812][ T166] ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:220 (discriminator 1) kernel/locking/spinlock.c:229 (discriminator 1)) [ 10.110813][ T166] get_signal (kernel/signal.c:3039) [ 10.110821][ T166] ? ptrace_signal (./include/linux/signal.h:87) [ 10.110826][ T166] arch_do_signal_or_restart (arch/x86/kernel/signal.c:337) [ 10.110831][ T166] ? get_sigframe_size (arch/x86/kernel/signal.c:233) [ 10.110833][ T166] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.110837][ T166] ? do_futex (kernel/futex/syscalls.c:153 (discriminator 1)) [ 10.110840][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.110842][ T166] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.110846][ T166] exit_to_user_mode_loop (kernel/entry/common.c:66 kernel/entry/common.c:101) [ 10.110849][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.110852][ T166] do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:336 arch/x86/entry/syscall_64.c:89) [ 10.110855][ T166] ? irq_exit_rcu (kernel/softirq.c:786) [ 10.110857][ T166] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.110860][ T166] RIP: 0033:0x7f9ef7ab4312 [ 10.110862][ T166] Code: Unable to access opcode bytes at 0x7f9ef7ab42e8. Code starting with the faulting instruction =========================================== [ 10.110864][ T166] RSP: 002b:00007ffc46486718 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 10.110866][ T166] RAX: fffffffffffffe00 RBX: 0000000000418460 RCX: 00007f9ef7ab4312 [ 10.110867][ T166] RDX: 0000000000000017 RSI: 0000000000000189 RDI: 0000000000418484 [ 10.110868][ T166] RBP: 00007ffc46486740 R08: 0000000000000000 R09: 00000000ffffffff [ 10.110869][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print