====================================== | [ 8.757310][ T166] softirqs last disabled at (10947): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.757312][ T166] Preemption disabled at: | [ 8.757313][ T166] 0x0 | [ 8.757323][ T166] Tainted: [W]=WARN [ 8.757324][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.757325][ T166] Call Trace: [ 8.757327][ T166] [ 8.757328][ T166] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.757334][ T166] __might_resched.cold (kernel/sched/core.c:9234) [ 8.757339][ T166] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.757342][ 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) [ 8.757347][ 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)) [ 8.757349][ T166] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.757354][ 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) [ 8.757357][ T166] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.757359][ T166] put_chars (drivers/char/virtio_console.c:1176) [ 8.757362][ T166] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.757363][ T166] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 8.757367][ T166] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.757369][ T166] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.757373][ T166] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.757376][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757377][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757381][ T166] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.757384][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757387][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.757391][ T166] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.757394][ T166] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.757398][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757400][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.757404][ T166] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.757408][ T166] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.757409][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757414][ T166] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.757416][ T166] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.757418][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757420][ T166] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.757423][ T166] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.757425][ T166] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.757428][ T166] vprintk_emit (kernel/printk/printk.c:2479) [ 8.757431][ T166] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.757434][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757437][ T166] _printk (kernel/printk/printk.c:2504) [ 8.757441][ T166] ? snapshot_read.cold (user.c:?) [ 8.757444][ 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) [ 8.757446][ T166] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.757449][ 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) [ 8.757452][ T166] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.757455][ T166] ? exit_notify (kernel/exit.c:780) [ 8.757457][ T166] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.757459][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757463][ T166] do_group_exit (kernel/exit.c:1151) [ 8.757466][ T166] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.757469][ T166] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.757471][ T166] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.757474][ T166] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.757477][ T166] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.757479][ T166] RIP: 0033:0x7fb316a791b8 [ 8.757481][ T166] Code: Unable to access opcode bytes at 0x7fb316a7918e. Code starting with the faulting instruction =========================================== [ 8.757483][ T166] RSP: 002b:00007ffefb21ccb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.757485][ T166] RAX: ffffffffffffffda RBX: 00007fb316ba9f88 RCX: 00007fb316a791b8 [ 8.757486][ T166] RDX: 00007fb3169b8408 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 8.757487][ T166] RBP: 00007ffefb21cd10 R08: 0000000000000000 R09: 000000000000006b [ 8.757488][ T166] R10: 00007ffefb21cb30 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print