====================================== | [ 9.695452][ T201] softirqs last disabled at (19961): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.695454][ T201] Preemption disabled at: | [ 9.695455][ T201] 0x0 | [ 9.695465][ T201] Tainted: [W]=WARN [ 9.695466][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.695468][ T201] Call Trace: [ 9.695470][ T201] [ 9.695471][ T201] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.695478][ T201] __might_resched.cold (kernel/sched/core.c:9234) [ 9.695482][ T201] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.695486][ T201] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.695491][ T201] __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)) [ 9.695493][ T201] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.695499][ T201] ? 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) [ 9.695502][ T201] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.695506][ T201] put_chars (drivers/char/virtio_console.c:1176) [ 9.695509][ T201] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.695511][ T201] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.695515][ T201] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.695521][ T201] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.695528][ T201] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.695531][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.695533][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.695537][ T201] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.695540][ T201] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.695542][ T201] ? 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)) [ 9.695545][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.695547][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.695551][ T201] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.695555][ T201] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.695556][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.695561][ T201] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.695564][ T201] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.695565][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.695572][ T201] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.695576][ T201] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.695577][ T201] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.695580][ T201] vprintk_emit (kernel/printk/printk.c:2479) [ 9.695584][ T201] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.695587][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.695590][ T201] _printk (kernel/printk/printk.c:2504) [ 9.695594][ T201] ? snapshot_read.cold (user.c:?) [ 9.695597][ T201] ? 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) [ 9.695599][ T201] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.695603][ T201] ? 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) [ 9.695605][ T201] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.695609][ T201] ? exit_notify (kernel/exit.c:780) [ 9.695611][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.695614][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.695618][ T201] do_group_exit (kernel/exit.c:1151) [ 9.695621][ T201] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.695623][ T201] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.695625][ T201] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.695629][ T201] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.695632][ T201] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.695634][ T201] RIP: 0033:0x7f84a77791b8 [ 9.695637][ T201] Code: Unable to access opcode bytes at 0x7f84a777918e. Code starting with the faulting instruction =========================================== [ 9.695638][ T201] RSP: 002b:00007ffcfd09eb78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.695640][ T201] RAX: ffffffffffffffda RBX: 00007f84a78a9f88 RCX: 00007f84a77791b8 [ 9.695642][ T201] RDX: 00007f84a74c3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.695643][ T201] RBP: 00007ffcfd09ebd0 R08: 0000000000000000 R09: 0000000000000050 [ 9.695643][ T201] R10: 00007ffcfd09e990 R11: 0000000000000246 R12: 0000000000000001 [ 9.695644][ T201] R13: 0000000000000000 R14: 00007f84a78a8680 R15: 00007f84a78a9fa0 | [ 19.092766][ T552] softirqs last disabled at (57171): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 19.092768][ T552] Preemption disabled at: | [ 19.092768][ T552] 0x0 | [ 19.092780][ T552] Tainted: [W]=WARN [ 19.092780][ T552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.092782][ T552] Call Trace: [ 19.092784][ T552] [ 19.092785][ T552] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.092792][ T552] __might_resched.cold (kernel/sched/core.c:9234) [ 19.092796][ T552] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.092800][ T552] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.092805][ T552] __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)) [ 19.092807][ T552] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.092814][ T552] ? 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) [ 19.092817][ T552] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.092820][ T552] put_chars (drivers/char/virtio_console.c:1176) [ 19.092824][ T552] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.092826][ T552] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.092830][ T552] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.092835][ T552] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.092843][ T552] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.092845][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.092848][ T552] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.092851][ T552] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.092855][ T552] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.092857][ T552] ? 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)) [ 19.092860][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.092862][ T552] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.092866][ T552] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.092870][ T552] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.092871][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.092876][ T552] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.092879][ T552] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.092880][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.092882][ T552] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 19.092886][ T552] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.092887][ T552] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.092890][ T552] vprintk_emit (kernel/printk/printk.c:2479) [ 19.092894][ T552] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.092896][ T552] ? 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) [ 19.092898][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.092902][ T552] _printk (kernel/printk/printk.c:2504) [ 19.092906][ T552] ? snapshot_read.cold (user.c:?) [ 19.092909][ T552] ? 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) [ 19.092911][ T552] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 19.092915][ T552] ? 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) [ 19.092917][ T552] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 19.092921][ T552] ? exit_notify (kernel/exit.c:780) [ 19.092923][ T552] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.092926][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.092929][ T552] do_group_exit (kernel/exit.c:1151) [ 19.092933][ T552] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 19.092935][ T552] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 19.092937][ T552] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.092940][ T552] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.092944][ T552] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.092946][ T552] RIP: 0033:0x7f6a49c611b8 [ 19.092948][ T552] Code: Unable to access opcode bytes at 0x7f6a49c6118e. Code starting with the faulting instruction =========================================== [ 19.092950][ T552] RSP: 002b:00007ffe920013e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.092952][ T552] RAX: ffffffffffffffda RBX: 00007f6a49d91f88 RCX: 00007f6a49c611b8 [ 19.092954][ T552] RDX: 00007f6a49b9ea48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 19.092954][ T552] RBP: 00007ffe92001440 R08: 0000000000000000 R09: 0000000000000000 [ 19.092955][ T552] R10: 00007ffe92001280 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print