====================================== | [ 9.644986][ T175] softirqs last disabled at (25297): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.644989][ T175] Preemption disabled at: | [ 9.644990][ T175] 0x0 | [ 9.644999][ T175] Tainted: [W]=WARN [ 9.645000][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.645002][ T175] Call Trace: [ 9.645004][ T175] [ 9.645005][ T175] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.645011][ T175] __might_resched.cold (kernel/sched/core.c:9234) [ 9.645015][ T175] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.645018][ T175] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.645023][ T175] __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)) [ 9.645026][ T175] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.645032][ T175] ? 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) [ 9.645034][ T175] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.645038][ T175] put_chars (drivers/char/virtio_console.c:1176) [ 9.645041][ T175] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.645042][ T175] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.645046][ T175] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.645052][ T175] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.645058][ T175] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.645061][ T175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.645063][ T175] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.645067][ T175] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.645070][ T175] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.645071][ T175] ? 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)) [ 9.645074][ T175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.645076][ T175] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.645080][ T175] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.645083][ T175] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.645085][ T175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.645090][ T175] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.645092][ T175] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.645093][ T175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.645095][ T175] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.645099][ T175] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.645101][ T175] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.645104][ T175] vprintk_emit (kernel/printk/printk.c:2479) [ 9.645107][ T175] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.645110][ T175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.645114][ T175] _printk (kernel/printk/printk.c:2504) [ 9.645117][ T175] ? snapshot_read.cold (user.c:?) [ 9.645120][ T175] ? 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) [ 9.645123][ T175] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.645127][ T175] ? 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) [ 9.645130][ T175] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.645133][ T175] ? exit_notify (kernel/exit.c:780) [ 9.645135][ T175] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.645138][ T175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.645141][ T175] do_group_exit (kernel/exit.c:1151) [ 9.645144][ T175] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.645146][ T175] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.645149][ T175] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.645153][ T175] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.645155][ T175] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.645157][ T175] RIP: 0033:0x7fce8c81d1b8 [ 9.645160][ T175] Code: Unable to access opcode bytes at 0x7fce8c81d18e. Code starting with the faulting instruction =========================================== [ 9.645161][ T175] RSP: 002b:00007ffd12ea4668 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.645163][ T175] RAX: ffffffffffffffda RBX: 00007fce8c94df88 RCX: 00007fce8c81d1b8 [ 9.645165][ T175] RDX: 00007fce8c567fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.645165][ T175] RBP: 00007ffd12ea46c0 R08: 0000000000000000 R09: 0000000000008010 [ 9.645166][ T175] R10: 00007ffd12ea4480 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print