====================================== | [ 10.716760][ T252] softirqs last disabled at (23673): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.716763][ T252] Preemption disabled at: | [ 10.716764][ T252] 0x0 | [ 10.716777][ T252] Tainted: [W]=WARN [ 10.716778][ T252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.716780][ T252] Call Trace: [ 10.716782][ T252] [ 10.716785][ T252] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.716793][ T252] __might_resched.cold (kernel/sched/core.c:9234) [ 10.716799][ T252] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.716804][ T252] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.716811][ T252] __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)) [ 10.716814][ T252] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.716824][ T252] ? 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) [ 10.716827][ T252] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.716833][ T252] put_chars (drivers/char/virtio_console.c:1176) [ 10.716837][ T252] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.716839][ T252] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.716845][ T252] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.716854][ T252] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.716866][ T252] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.716870][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.716873][ T252] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.716880][ T252] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.716887][ T252] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.716889][ T252] ? 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)) [ 10.716895][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.716898][ T252] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.716904][ T252] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.716911][ T252] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.716914][ T252] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.716923][ T252] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.716927][ T252] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.716930][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.716933][ T252] ? 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) [ 10.716939][ T252] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.716942][ T252] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.716947][ T252] vprintk_emit (kernel/printk/printk.c:2479) [ 10.716952][ T252] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.716957][ T252] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.716964][ T252] _printk (kernel/printk/printk.c:2504) [ 10.716969][ T252] ? snapshot_read.cold (user.c:?) [ 10.716973][ T252] ? 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) [ 10.716977][ T252] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.716984][ T252] ? 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) [ 10.716988][ T252] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.716993][ T252] ? exit_notify (kernel/exit.c:780) [ 10.716995][ T252] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.717000][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.717007][ T252] do_group_exit (kernel/exit.c:1151) [ 10.717012][ T252] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.717014][ T252] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.717018][ T252] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.717022][ T252] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.717027][ T252] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.717030][ T252] RIP: 0033:0x7f4ae2b041b8 [ 10.717034][ T252] Code: Unable to access opcode bytes at 0x7f4ae2b0418e. Code starting with the faulting instruction =========================================== [ 10.717035][ T252] RSP: 002b:00007fffc4405298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.717039][ T252] RAX: ffffffffffffffda RBX: 00007f4ae2c34f88 RCX: 00007f4ae2b041b8 [ 10.717041][ T252] RDX: 00007f4ae284efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.717042][ T252] RBP: 00007fffc44052f0 R08: 0000000000000000 R09: 0000000000000050 [ 10.717044][ T252] R10: 00007fffc44050b0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print