====================================== | [ 12.470462][ T274] softirqs last disabled at (29915): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.470465][ T274] Preemption disabled at: | [ 12.470465][ T274] 0x0 | [ 12.470476][ T274] Tainted: [W]=WARN [ 12.470477][ T274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.470479][ T274] Call Trace: [ 12.470480][ T274] [ 12.470482][ T274] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.470488][ T274] __might_resched.cold (kernel/sched/core.c:9234) [ 12.470498][ T274] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.470502][ T274] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.470506][ T274] __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)) [ 12.470509][ T274] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.470516][ T274] ? 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) [ 12.470519][ T274] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.470523][ T274] put_chars (drivers/char/virtio_console.c:1176) [ 12.470526][ T274] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.470527][ T274] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.470531][ T274] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.470537][ T274] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.470545][ T274] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.470547][ T274] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.470550][ T274] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.470554][ T274] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.470558][ T274] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.470560][ T274] ? 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)) [ 12.470563][ T274] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.470565][ T274] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.470569][ T274] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.470574][ T274] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.470576][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.470582][ T274] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.470585][ T274] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.470587][ T274] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.470589][ T274] ? 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) [ 12.470593][ T274] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.470595][ T274] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.470598][ T274] vprintk_emit (kernel/printk/printk.c:2479) [ 12.470601][ T274] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.470604][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.470608][ T274] _printk (kernel/printk/printk.c:2504) [ 12.470612][ T274] ? snapshot_read.cold (user.c:?) [ 12.470615][ T274] ? 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) [ 12.470618][ T274] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.470622][ T274] ? 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) [ 12.470625][ T274] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.470633][ T274] ? exit_notify (kernel/exit.c:780) [ 12.470635][ T274] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.470639][ T274] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.470643][ T274] do_group_exit (kernel/exit.c:1151) [ 12.470647][ T274] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.470649][ T274] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.470652][ T274] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.470657][ T274] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.470660][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.470662][ T274] RIP: 0033:0x7f993ddd51b8 [ 12.470665][ T274] Code: Unable to access opcode bytes at 0x7f993ddd518e. Code starting with the faulting instruction =========================================== [ 12.470666][ T274] RSP: 002b:00007ffc51e14288 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.470669][ T274] RAX: ffffffffffffffda RBX: 00007f993df05f88 RCX: 00007f993ddd51b8 [ 12.470670][ T274] RDX: 00007f993db1ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.470672][ T274] RBP: 00007ffc51e142e0 R08: 0000000000000000 R09: 0000000000000050 [ 12.470673][ T274] R10: 00007ffc51e140a0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print