====================================== | [ 34.395874][ T434] softirqs last disabled at (27473): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 34.395876][ T434] Preemption disabled at: | [ 34.395877][ T434] 0x0 | [ 34.395887][ T434] Tainted: [W]=WARN [ 34.395888][ T434] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.395889][ T434] Call Trace: [ 34.395891][ T434] [ 34.395892][ T434] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.395898][ T434] __might_resched.cold (kernel/sched/core.c:9234) [ 34.395903][ T434] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.395907][ T434] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.395912][ T434] __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)) [ 34.395914][ T434] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.395920][ T434] ? 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) [ 34.395923][ T434] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.395926][ T434] put_chars (drivers/char/virtio_console.c:1176) [ 34.395928][ T434] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.395930][ T434] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.395934][ T434] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.395939][ T434] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.395945][ T434] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.395947][ T434] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.395950][ T434] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.395954][ T434] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.395957][ T434] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.395959][ T434] ? 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)) [ 34.395962][ T434] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.395964][ T434] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.395968][ T434] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.395972][ T434] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.395974][ T434] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.395979][ T434] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.395982][ T434] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.395983][ T434] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.395986][ T434] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 34.395989][ T434] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.395991][ T434] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.395994][ T434] vprintk_emit (kernel/printk/printk.c:2479) [ 34.395998][ T434] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.396001][ T434] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.396004][ T434] _printk (kernel/printk/printk.c:2504) [ 34.396009][ T434] ? snapshot_read.cold (user.c:?) [ 34.396011][ T434] ? 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) [ 34.396014][ T434] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 34.396017][ T434] ? 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) [ 34.396020][ T434] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 34.396024][ T434] ? exit_notify (kernel/exit.c:780) [ 34.396026][ T434] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.396028][ T434] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.396032][ T434] do_group_exit (kernel/exit.c:1151) [ 34.396035][ T434] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 34.396036][ T434] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 34.396039][ T434] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 34.396042][ T434] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 34.396045][ T434] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 34.396047][ T434] RIP: 0033:0x7fb5f7c031b8 [ 34.396049][ T434] Code: Unable to access opcode bytes at 0x7fb5f7c0318e. Code starting with the faulting instruction =========================================== [ 34.396050][ T434] RSP: 002b:00007ffc63a102d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 34.396053][ T434] RAX: ffffffffffffffda RBX: 00007fb5f7d33f88 RCX: 00007fb5f7c031b8 [ 34.396054][ T434] RDX: 00007fb5f794dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 34.396055][ T434] RBP: 00007ffc63a10330 R08: 0000000000000000 R09: 0000000000000050 [ 34.396056][ T434] R10: 00007ffc63a100f0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print