====================================== | [ 51.075453][ T264] softirqs last disabled at (24361): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 51.075456][ T264] Preemption disabled at: | [ 51.075456][ T264] 0x0 | [ 51.075467][ T264] Tainted: [W]=WARN [ 51.075468][ T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 51.075470][ T264] Call Trace: [ 51.075471][ T264] [ 51.075473][ T264] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 51.075480][ T264] __might_resched.cold (kernel/sched/core.c:9234) [ 51.075485][ T264] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 51.075489][ T264] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 51.075494][ T264] __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)) [ 51.075497][ T264] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 51.075503][ T264] ? 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) [ 51.075506][ T264] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 51.075510][ T264] put_chars (drivers/char/virtio_console.c:1176) [ 51.075513][ T264] ? __send_to_port (drivers/char/virtio_console.c:654) [ 51.075515][ T264] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 51.075519][ T264] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 51.075522][ T264] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 51.075526][ T264] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 51.075530][ T264] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.075531][ T264] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.075536][ T264] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 51.075539][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 51.075543][ T264] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 51.075547][ T264] console_emit_next_record (kernel/printk/printk.c:3183) [ 51.075551][ T264] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 51.075555][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 51.075557][ T264] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 51.075561][ T264] console_flush_one_record (kernel/printk/printk.c:3268) [ 51.075565][ T264] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 51.075567][ T264] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.075572][ T264] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 51.075575][ T264] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 51.075577][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 51.075579][ T264] ? 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)) [ 51.075583][ T264] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 51.075585][ T264] ? vprintk_emit (kernel/printk/printk.c:2478) [ 51.075588][ T264] vprintk_emit (kernel/printk/printk.c:2479) [ 51.075592][ T264] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 51.075596][ T264] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.075599][ T264] _printk (kernel/printk/printk.c:2504) [ 51.075603][ T264] ? snapshot_read.cold (user.c:?) [ 51.075606][ T264] ? 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) [ 51.075608][ T264] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 51.075612][ T264] ? 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) [ 51.075615][ T264] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 51.075619][ T264] ? exit_notify (kernel/exit.c:780) [ 51.075620][ T264] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 51.075623][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 51.075627][ T264] do_group_exit (kernel/exit.c:1151) [ 51.075630][ T264] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 51.075632][ T264] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 51.075634][ T264] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 51.075638][ T264] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 51.075641][ T264] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 51.075644][ T264] RIP: 0033:0x7f2d8b6f71b8 [ 51.075646][ T264] Code: Unable to access opcode bytes at 0x7f2d8b6f718e. Code starting with the faulting instruction =========================================== [ 51.075647][ T264] RSP: 002b:00007fff3cd98348 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 51.075650][ T264] RAX: ffffffffffffffda RBX: 00007f2d8b827f88 RCX: 00007f2d8b6f71b8 [ 51.075651][ T264] RDX: 00007f2d8b442588 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 51.075652][ T264] RBP: 00007fff3cd983a0 R08: 0000000000000000 R09: 0000000000000000 [ 51.075653][ T264] R10: 00007fff3cd98140 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print