====================================== | [ 10.326141][ T199] softirqs last disabled at (31973): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.326143][ T199] Preemption disabled at: | [ 10.326144][ T199] 0x0 | [ 10.326155][ T199] Tainted: [W]=WARN [ 10.326156][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.326158][ T199] Call Trace: [ 10.326160][ T199] [ 10.326161][ T199] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.326168][ T199] __might_resched.cold (kernel/sched/core.c:9234) [ 10.326172][ T199] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.326177][ T199] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.326181][ T199] __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)) [ 10.326183][ T199] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.326190][ T199] ? 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) [ 10.326193][ T199] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.326197][ T199] put_chars (drivers/char/virtio_console.c:1176) [ 10.326200][ T199] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.326201][ T199] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.326205][ T199] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.326210][ T199] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.326218][ T199] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.326221][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.326223][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.326227][ T199] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.326231][ T199] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.326233][ T199] ? 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)) [ 10.326237][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.326238][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.326242][ T199] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.326247][ T199] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.326249][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.326254][ T199] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.326257][ T199] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.326259][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.326261][ T199] ? 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) [ 10.326264][ T199] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.326266][ T199] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.326269][ T199] vprintk_emit (kernel/printk/printk.c:2479) [ 10.326272][ T199] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.326275][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.326279][ T199] _printk (kernel/printk/printk.c:2504) [ 10.326283][ T199] ? snapshot_read.cold (user.c:?) [ 10.326285][ T199] ? 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) [ 10.326288][ T199] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.326292][ T199] ? 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) [ 10.326295][ T199] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.326299][ T199] ? exit_notify (kernel/exit.c:780) [ 10.326300][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.326303][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.326306][ T199] do_group_exit (kernel/exit.c:1151) [ 10.326309][ T199] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.326311][ T199] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.326314][ T199] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.326318][ T199] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.326321][ T199] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.326323][ T199] RIP: 0033:0x7fb643ffb1b8 [ 10.326326][ T199] Code: Unable to access opcode bytes at 0x7fb643ffb18e. Code starting with the faulting instruction =========================================== [ 10.326327][ T199] RSP: 002b:00007fff00a8a5f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.326329][ T199] RAX: ffffffffffffffda RBX: 00007fb64412bf88 RCX: 00007fb643ffb1b8 [ 10.326330][ T199] RDX: 00007fb643d45fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.326331][ T199] RBP: 00007fff00a8a650 R08: 0000000000000000 R09: 0000000000000000 [ 10.326332][ T199] R10: 00007fff00a8a410 R11: 0000000000000246 R12: 0000000000000001 [ 10.326333][ T199] R13: 0000000000000000 R14: 00007fb64412a680 R15: 00007fb64412bfa0 | [ 26.872722][ T286] softirqs last disabled at (28877): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 26.872725][ T286] Preemption disabled at: | [ 26.872726][ T286] 0x0 | [ 26.872740][ T286] Tainted: [W]=WARN [ 26.872742][ T286] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.872744][ T286] Call Trace: [ 26.872746][ T286] [ 26.872748][ T286] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.872757][ T286] __might_resched.cold (kernel/sched/core.c:9234) [ 26.872763][ T286] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.872769][ T286] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.872776][ T286] __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)) [ 26.872780][ T286] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.872790][ T286] ? 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) [ 26.872794][ T286] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.872800][ T286] put_chars (drivers/char/virtio_console.c:1176) [ 26.872804][ T286] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.872806][ T286] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.872812][ T286] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.872822][ T286] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.872834][ T286] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.872839][ T286] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.872842][ T286] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.872849][ T286] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.872856][ T286] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.872859][ T286] ? 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)) [ 26.872864][ T286] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.872867][ T286] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.872875][ T286] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.872882][ T286] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.872885][ T286] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.872895][ T286] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.872899][ T286] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.872902][ T286] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.872905][ T286] ? 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) [ 26.872911][ T286] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.872914][ T286] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.872919][ T286] vprintk_emit (kernel/printk/printk.c:2479) [ 26.872925][ T286] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.872930][ T286] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.872937][ T286] _printk (kernel/printk/printk.c:2504) [ 26.872943][ T286] ? snapshot_read.cold (user.c:?) [ 26.872947][ T286] ? 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) [ 26.872952][ T286] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 26.872958][ T286] ? 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) [ 26.872963][ T286] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 26.872969][ T286] ? exit_notify (kernel/exit.c:780) [ 26.872972][ T286] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.872976][ T286] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.872983][ T286] do_group_exit (kernel/exit.c:1151) [ 26.872988][ T286] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 26.872991][ T286] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 26.872995][ T286] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.873000][ T286] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.873005][ T286] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.873009][ T286] RIP: 0033:0x7fbbb0d701b8 [ 26.873012][ T286] Code: Unable to access opcode bytes at 0x7fbbb0d7018e. Code starting with the faulting instruction =========================================== [ 26.873015][ T286] RSP: 002b:00007ffcbd7a7078 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 26.873019][ T286] RAX: ffffffffffffffda RBX: 00007fbbb0ea0f88 RCX: 00007fbbb0d701b8 [ 26.873021][ T286] RDX: 00007fbbb0abafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 26.873023][ T286] RBP: 00007ffcbd7a70d0 R08: 0000000000000000 R09: 0000000000000000 [ 26.873024][ T286] R10: 00007ffcbd7a6e90 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print