====================================== | [ 11.643862][ T202] softirqs last disabled at (4063107): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.643865][ T202] Preemption disabled at: | [ 11.643865][ T202] 0x0 | [ 11.643876][ T202] Tainted: [W]=WARN [ 11.643877][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.643878][ T202] Call Trace: [ 11.643880][ T202] [ 11.643881][ T202] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.643887][ T202] __might_resched.cold (kernel/sched/core.c:9234) [ 11.643892][ T202] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.643895][ T202] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.643900][ T202] __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)) [ 11.643903][ T202] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.643909][ T202] ? 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) [ 11.643912][ T202] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.643915][ T202] put_chars (drivers/char/virtio_console.c:1176) [ 11.643919][ T202] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.643920][ T202] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.643924][ T202] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.643930][ T202] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.643936][ T202] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.643939][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.643941][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.643945][ T202] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.643948][ T202] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.643949][ T202] ? 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)) [ 11.643952][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.643954][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.643958][ T202] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.643961][ T202] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.643962][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.643968][ T202] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.643970][ T202] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.643971][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.643973][ T202] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.643977][ T202] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.643979][ T202] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.643982][ T202] vprintk_emit (kernel/printk/printk.c:2479) [ 11.643985][ T202] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.643988][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.643991][ T202] _printk (kernel/printk/printk.c:2504) [ 11.643995][ T202] ? snapshot_read.cold (user.c:?) [ 11.643998][ T202] ? 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) [ 11.644001][ T202] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.644005][ T202] ? 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) [ 11.644008][ T202] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.644011][ T202] ? exit_notify (kernel/exit.c:780) [ 11.644013][ T202] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.644015][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.644019][ T202] do_group_exit (kernel/exit.c:1151) [ 11.644022][ T202] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.644024][ T202] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.644027][ T202] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.644030][ T202] ? irq_exit_rcu (kernel/softirq.c:786) [ 11.644033][ T202] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.644036][ T202] RIP: 0033:0x479678 [ 11.644038][ T202] Code: Unable to access opcode bytes at 0x47964e. Code starting with the faulting instruction =========================================== [ 11.644039][ T202] RSP: 002b:00007fffcfced138 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.644041][ T202] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.644043][ T202] RDX: 0000000006ddb708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.644043][ T202] RBP: 00007fffcfced190 R08: 0000000000000000 R09: 0000000006ddc3e0 [ 11.644044][ T202] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fffcfced2c8 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print