====================================== | [ 45.833706][ T385] softirqs last disabled at (33779): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 45.833709][ T385] Preemption disabled at: | [ 45.833709][ T385] 0x0 | [ 45.833720][ T385] Tainted: [W]=WARN [ 45.833721][ T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 45.833723][ T385] Call Trace: [ 45.833724][ T385] [ 45.833726][ T385] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 45.833732][ T385] __might_resched.cold (kernel/sched/core.c:9234) [ 45.833737][ T385] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 45.833741][ T385] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 45.833746][ T385] __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)) [ 45.833748][ T385] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 45.833754][ T385] ? 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) [ 45.833757][ T385] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 45.833761][ T385] put_chars (drivers/char/virtio_console.c:1176) [ 45.833764][ T385] ? __send_to_port (drivers/char/virtio_console.c:654) [ 45.833766][ T385] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 45.833771][ T385] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 45.833776][ T385] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 45.833783][ T385] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 45.833786][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.833788][ T385] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.833792][ T385] console_emit_next_record (kernel/printk/printk.c:3183) [ 45.833796][ T385] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 45.833797][ T385] ? 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)) [ 45.833800][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.833803][ T385] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.833806][ T385] console_flush_one_record (kernel/printk/printk.c:3268) [ 45.833810][ T385] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 45.833812][ T385] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.833817][ T385] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 45.833820][ T385] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 45.833821][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.833824][ T385] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 45.833827][ T385] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 45.833829][ T385] ? vprintk_emit (kernel/printk/printk.c:2478) [ 45.833832][ T385] vprintk_emit (kernel/printk/printk.c:2479) [ 45.833835][ T385] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 45.833839][ T385] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.833842][ T385] _printk (kernel/printk/printk.c:2504) [ 45.833846][ T385] ? snapshot_read.cold (user.c:?) [ 45.833849][ T385] ? 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) [ 45.833851][ T385] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 45.833855][ T385] ? 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) [ 45.833857][ T385] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 45.833861][ T385] ? exit_notify (kernel/exit.c:780) [ 45.833863][ T385] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 45.833865][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.833869][ T385] do_group_exit (kernel/exit.c:1151) [ 45.833873][ T385] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 45.833875][ T385] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 45.833877][ T385] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 45.833881][ T385] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 45.833884][ T385] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 45.833886][ T385] RIP: 0033:0x7f6da98771b8 [ 45.833889][ T385] Code: Unable to access opcode bytes at 0x7f6da987718e. Code starting with the faulting instruction =========================================== [ 45.833890][ T385] RSP: 002b:00007ffcb8495c48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 45.833893][ T385] RAX: ffffffffffffffda RBX: 00007f6da99a7f88 RCX: 00007f6da98771b8 [ 45.833894][ T385] RDX: 00007f6da969ea88 RSI: ffffffffffffffa0 RDI: 0000000000000000 [ 45.833895][ T385] RBP: 00007ffcb8495ca0 R08: 0000000000000000 R09: 00000000000001e0 [ 45.833896][ T385] R10: 00007ffcb8495a80 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print