====================================== | [ 10.422816][ T212] softirqs last disabled at (23449): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.422818][ T212] Preemption disabled at: | [ 10.422819][ T212] 0x0 | [ 10.422829][ T212] Tainted: [W]=WARN [ 10.422830][ T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.422831][ T212] Call Trace: [ 10.422833][ T212] [ 10.422834][ T212] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.422840][ T212] __might_resched.cold (kernel/sched/core.c:9234) [ 10.422845][ T212] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.422849][ T212] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.422853][ T212] __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)) [ 10.422855][ T212] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.422862][ T212] ? 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) [ 10.422865][ T212] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.422868][ T212] put_chars (drivers/char/virtio_console.c:1176) [ 10.422871][ T212] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.422872][ T212] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.422875][ T212] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.422881][ T212] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.422888][ T212] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.422891][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.422893][ T212] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.422897][ T212] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.422900][ T212] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.422902][ T212] ? 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)) [ 10.422905][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.422907][ T212] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.422911][ T212] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.422915][ T212] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.422917][ T212] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.422922][ T212] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.422925][ T212] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.422927][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.422928][ T212] ? 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) [ 10.422932][ T212] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.422934][ T212] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.422936][ T212] vprintk_emit (kernel/printk/printk.c:2479) [ 10.422939][ T212] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.422942][ T212] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.422946][ T212] _printk (kernel/printk/printk.c:2504) [ 10.422949][ T212] ? snapshot_read.cold (user.c:?) [ 10.422952][ T212] ? 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) [ 10.422954][ T212] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.422958][ T212] ? 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) [ 10.422961][ T212] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.422964][ T212] ? exit_notify (kernel/exit.c:780) [ 10.422966][ T212] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.422968][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.422972][ T212] do_group_exit (kernel/exit.c:1151) [ 10.422974][ T212] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.422976][ T212] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.422979][ T212] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.422982][ T212] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.422985][ T212] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.422987][ T212] RIP: 0033:0x7fa793c251b8 [ 10.422989][ T212] Code: Unable to access opcode bytes at 0x7fa793c2518e. Code starting with the faulting instruction =========================================== [ 10.422991][ T212] RSP: 002b:00007fff49e30a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.422993][ T212] RAX: ffffffffffffffda RBX: 00007fa793d55f88 RCX: 00007fa793c251b8 [ 10.422994][ T212] RDX: 00007fa79396ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.422995][ T212] RBP: 00007fff49e30a90 R08: 0000000000000000 R09: 0000000000000060 [ 10.422996][ T212] R10: 00007fff49e30850 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print