====================================== | [ 9.753783][ T186] softirqs last disabled at (41413): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.753785][ T186] Preemption disabled at: | [ 9.753786][ T186] 0x0 | [ 9.753796][ T186] Tainted: [W]=WARN [ 9.753797][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.753799][ T186] Call Trace: [ 9.753800][ T186] [ 9.753802][ T186] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.753808][ T186] __might_resched.cold (kernel/sched/core.c:9234) [ 9.753813][ T186] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.753817][ T186] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.753823][ T186] __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)) [ 9.753825][ T186] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.753831][ T186] ? 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) [ 9.753833][ T186] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.753837][ T186] put_chars (drivers/char/virtio_console.c:1176) [ 9.753840][ T186] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.753842][ T186] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.753849][ T186] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.753856][ T186] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.753863][ T186] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.753865][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.753867][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.753871][ T186] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.753875][ T186] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.753877][ T186] ? 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)) [ 9.753880][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.753883][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.753886][ T186] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.753891][ T186] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.753892][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.753898][ T186] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.753900][ T186] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.753902][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.753905][ T186] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.753908][ T186] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.753910][ T186] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.753913][ T186] vprintk_emit (kernel/printk/printk.c:2479) [ 9.753917][ T186] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.753920][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.753924][ T186] _printk (kernel/printk/printk.c:2504) [ 9.753928][ T186] ? snapshot_read.cold (user.c:?) [ 9.753931][ T186] ? 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) [ 9.753933][ T186] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.753937][ T186] ? 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) [ 9.753940][ T186] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.753944][ T186] ? exit_notify (kernel/exit.c:780) [ 9.753946][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.753948][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.753952][ T186] do_group_exit (kernel/exit.c:1151) [ 9.753955][ T186] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.753957][ T186] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.753959][ T186] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.753962][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.753966][ T186] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.753968][ T186] RIP: 0033:0x7f9ef583f1b8 [ 9.753970][ T186] Code: Unable to access opcode bytes at 0x7f9ef583f18e. Code starting with the faulting instruction =========================================== [ 9.753971][ T186] RSP: 002b:00007ffcd1fa4578 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.753973][ T186] RAX: ffffffffffffffda RBX: 00007f9ef596ff88 RCX: 00007f9ef583f1b8 [ 9.753975][ T186] RDX: 00007f9ef5589fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.753976][ T186] RBP: 00007ffcd1fa45d0 R08: 0000000000000000 R09: 0000000000008010 [ 9.753976][ T186] R10: 00007ffcd1fa4390 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print