====================================== | [ 53.897586][ T5730] softirqs last disabled at (30127): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 53.897589][ T5730] Preemption disabled at: | [ 53.897589][ T5730] 0x0 | [ 53.897600][ T5730] Tainted: [W]=WARN [ 53.897601][ T5730] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 53.897602][ T5730] Call Trace: [ 53.897604][ T5730] [ 53.897606][ T5730] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 53.897612][ T5730] __might_resched.cold (kernel/sched/core.c:9234) [ 53.897617][ T5730] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 53.897622][ T5730] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 53.897626][ T5730] __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)) [ 53.897628][ T5730] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 53.897636][ T5730] ? 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) [ 53.897638][ T5730] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 53.897642][ T5730] put_chars (drivers/char/virtio_console.c:1176) [ 53.897645][ T5730] ? __send_to_port (drivers/char/virtio_console.c:654) [ 53.897646][ T5730] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 53.897650][ T5730] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 53.897656][ T5730] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 53.897664][ T5730] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 53.897667][ T5730] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.897669][ T5730] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 53.897674][ T5730] console_emit_next_record (kernel/printk/printk.c:3183) [ 53.897679][ T5730] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 53.897681][ T5730] ? 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)) [ 53.897684][ T5730] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.897686][ T5730] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 53.897691][ T5730] console_flush_one_record (kernel/printk/printk.c:3268) [ 53.897695][ T5730] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 53.897698][ T5730] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 53.897704][ T5730] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 53.897707][ T5730] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 53.897709][ T5730] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.897711][ T5730] ? 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) [ 53.897716][ T5730] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 53.897718][ T5730] ? vprintk_emit (kernel/printk/printk.c:2478) [ 53.897721][ T5730] vprintk_emit (kernel/printk/printk.c:2479) [ 53.897724][ T5730] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 53.897728][ T5730] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 53.897732][ T5730] _printk (kernel/printk/printk.c:2504) [ 53.897736][ T5730] ? snapshot_read.cold (user.c:?) [ 53.897739][ T5730] ? 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) [ 53.897742][ T5730] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 53.897747][ T5730] ? 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) [ 53.897750][ T5730] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 53.897754][ T5730] ? exit_notify (kernel/exit.c:780) [ 53.897755][ T5730] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 53.897758][ T5730] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.897762][ T5730] do_group_exit (kernel/exit.c:1151) [ 53.897765][ T5730] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 53.897767][ T5730] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 53.897770][ T5730] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 53.897774][ T5730] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 53.897777][ T5730] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 53.897779][ T5730] RIP: 0033:0x7fddf56a21b8 [ 53.897782][ T5730] Code: Unable to access opcode bytes at 0x7fddf56a218e. Code starting with the faulting instruction =========================================== [ 53.897783][ T5730] RSP: 002b:00007fff80776758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 53.897785][ T5730] RAX: ffffffffffffffda RBX: 00007fddf57d2f88 RCX: 00007fddf56a21b8 [ 53.897787][ T5730] RDX: 00007fddf53ecfc8 RSI: fffffffffffffeb8 RDI: 0000000000000002 [ 53.897788][ T5730] RBP: 00007fff807767b0 R08: 0000000000000000 R09: 0000000000008010 [ 53.897789][ T5730] R10: 00007fff80776570 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print