====================================== | [ 13.986511][ T209] softirqs last disabled at (23357): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 13.986513][ T209] Preemption disabled at: | [ 13.986514][ T209] 0x0 | [ 13.986524][ T209] Tainted: [W]=WARN [ 13.986525][ T209] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.986527][ T209] Call Trace: [ 13.986529][ T209] [ 13.986530][ T209] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.986537][ T209] __might_resched.cold (kernel/sched/core.c:9234) [ 13.986541][ T209] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.986545][ T209] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.986549][ T209] __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)) [ 13.986551][ T209] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.986558][ T209] ? 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) [ 13.986561][ T209] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.986564][ T209] put_chars (drivers/char/virtio_console.c:1176) [ 13.986567][ T209] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.986568][ T209] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.986572][ T209] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.986577][ T209] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.986585][ T209] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.986587][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.986589][ T209] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.986593][ T209] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.986597][ T209] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.986599][ T209] ? 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)) [ 13.986602][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.986604][ T209] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.986608][ T209] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.986612][ T209] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.986614][ T209] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.986619][ T209] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.986622][ T209] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.986624][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.986626][ T209] ? 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) [ 13.986629][ T209] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.986631][ T209] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.986634][ T209] vprintk_emit (kernel/printk/printk.c:2479) [ 13.986637][ T209] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.986640][ T209] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.986644][ T209] _printk (kernel/printk/printk.c:2504) [ 13.986647][ T209] ? snapshot_read.cold (user.c:?) [ 13.986650][ T209] ? 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) [ 13.986653][ T209] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 13.986657][ T209] ? 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) [ 13.986659][ T209] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 13.986663][ T209] ? exit_notify (kernel/exit.c:780) [ 13.986664][ T209] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.986667][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.986670][ T209] do_group_exit (kernel/exit.c:1151) [ 13.986673][ T209] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 13.986675][ T209] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 13.986678][ T209] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.986682][ T209] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.986685][ T209] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.986687][ T209] RIP: 0033:0x7f2f6e1fc1b8 [ 13.986689][ T209] Code: Unable to access opcode bytes at 0x7f2f6e1fc18e. Code starting with the faulting instruction =========================================== [ 13.986690][ T209] RSP: 002b:00007ffc7655a4c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.986692][ T209] RAX: ffffffffffffffda RBX: 00007f2f6e32cf88 RCX: 00007f2f6e1fc1b8 [ 13.986694][ T209] RDX: 00007f2f6df46fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 13.986695][ T209] RBP: 00007ffc7655a520 R08: 0000000000000000 R09: 0000000000000050 [ 13.986695][ T209] R10: 00007ffc7655a2e0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print