====================================== | [ 19.330608][ T312] softirqs last disabled at (11053): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 19.330611][ T312] Preemption disabled at: | [ 19.330611][ T312] 0x0 | [ 19.330621][ T312] Tainted: [W]=WARN [ 19.330622][ T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.330623][ T312] Call Trace: [ 19.330625][ T312] [ 19.330626][ T312] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.330633][ T312] __might_resched.cold (kernel/sched/core.c:9234) [ 19.330637][ T312] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.330641][ T312] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.330646][ T312] __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)) [ 19.330647][ T312] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.330654][ T312] ? 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) [ 19.330657][ T312] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.330660][ T312] put_chars (drivers/char/virtio_console.c:1176) [ 19.330663][ T312] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.330664][ T312] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.330667][ T312] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.330672][ T312] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.330680][ T312] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.330682][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.330684][ T312] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.330688][ T312] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.330692][ T312] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.330694][ T312] ? 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)) [ 19.330697][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.330699][ T312] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.330702][ T312] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.330706][ T312] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.330708][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.330713][ T312] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.330716][ T312] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.330718][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.330720][ T312] ? 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) [ 19.330724][ T312] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.330726][ T312] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.330729][ T312] vprintk_emit (kernel/printk/printk.c:2479) [ 19.330732][ T312] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.330734][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.330738][ T312] _printk (kernel/printk/printk.c:2504) [ 19.330742][ T312] ? snapshot_read.cold (user.c:?) [ 19.330744][ T312] ? 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) [ 19.330747][ T312] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 19.330751][ T312] ? 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) [ 19.330753][ T312] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 19.330757][ T312] ? exit_notify (kernel/exit.c:780) [ 19.330758][ T312] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.330761][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.330764][ T312] do_group_exit (kernel/exit.c:1151) [ 19.330767][ T312] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 19.330769][ T312] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 19.330771][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.330775][ T312] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.330778][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.330780][ T312] RIP: 0033:0x7f75bcebc1b8 [ 19.330782][ T312] Code: Unable to access opcode bytes at 0x7f75bcebc18e. Code starting with the faulting instruction =========================================== [ 19.330783][ T312] RSP: 002b:00007ffe931d9f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.330786][ T312] RAX: ffffffffffffffda RBX: 00007f75bcfecf88 RCX: 00007f75bcebc1b8 [ 19.330787][ T312] RDX: 00007f75bcdfae88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 19.330788][ T312] RBP: 00007ffe931d9fa0 R08: 0000000000000000 R09: 0000000000000000 [ 19.330789][ T312] R10: 00007ffe931d9de0 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print