====================================== | [ 11.832538][ T252] softirqs last disabled at (43979): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.832540][ T252] Preemption disabled at: | [ 11.832541][ T252] 0x0 | [ 11.832551][ T252] Tainted: [W]=WARN [ 11.832551][ T252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.832553][ T252] Call Trace: [ 11.832555][ T252] [ 11.832556][ T252] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.832562][ T252] __might_resched.cold (kernel/sched/core.c:9234) [ 11.832567][ T252] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.832571][ T252] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.832576][ T252] __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)) [ 11.832578][ T252] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.832584][ T252] ? 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) [ 11.832587][ T252] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.832590][ T252] put_chars (drivers/char/virtio_console.c:1176) [ 11.832593][ T252] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.832595][ T252] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.832599][ T252] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.832605][ T252] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.832611][ T252] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.832614][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.832616][ T252] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.832620][ T252] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.832624][ T252] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.832626][ T252] ? 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)) [ 11.832629][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.832631][ T252] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.832635][ T252] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.832639][ T252] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.832641][ T252] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.832646][ T252] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.832649][ T252] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.832651][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.832653][ T252] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.832657][ T252] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.832659][ T252] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.832662][ T252] vprintk_emit (kernel/printk/printk.c:2479) [ 11.832666][ T252] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.832669][ T252] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.832673][ T252] _printk (kernel/printk/printk.c:2504) [ 11.832676][ T252] ? snapshot_read.cold (user.c:?) [ 11.832679][ T252] ? 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) [ 11.832682][ T252] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.832686][ T252] ? 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) [ 11.832688][ T252] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.832692][ T252] ? exit_notify (kernel/exit.c:780) [ 11.832694][ T252] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.832696][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.832700][ T252] do_group_exit (kernel/exit.c:1151) [ 11.832703][ T252] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.832705][ T252] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.832708][ T252] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.832712][ T252] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.832715][ T252] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.832718][ T252] RIP: 0033:0x7efc5b94e1b8 [ 11.832720][ T252] Code: Unable to access opcode bytes at 0x7efc5b94e18e. Code starting with the faulting instruction =========================================== [ 11.832721][ T252] RSP: 002b:00007ffec7c96478 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.832724][ T252] RAX: ffffffffffffffda RBX: 00007efc5ba7ef88 RCX: 00007efc5b94e1b8 [ 11.832725][ T252] RDX: 00007efc5b698fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.832726][ T252] RBP: 00007ffec7c964d0 R08: 0000000000000000 R09: 0000000000000000 [ 11.832727][ T252] R10: 00007ffec7c96290 R11: 0000000000000246 R12: 0000000000000001 [ 11.832728][ T252] R13: 0000000000000000 R14: 00007efc5ba7d680 R15: 00007efc5ba7efa0 | [ 22.060639][ T520] softirqs last disabled at (7085899): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 22.060641][ T520] Preemption disabled at: | [ 22.060642][ T520] 0x0 | [ 22.060652][ T520] Tainted: [W]=WARN [ 22.060653][ T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.060655][ T520] Call Trace: [ 22.060656][ T520] [ 22.060658][ T520] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.060665][ T520] __might_resched.cold (kernel/sched/core.c:9234) [ 22.060669][ T520] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.060673][ T520] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.060678][ T520] __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)) [ 22.060681][ T520] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.060687][ T520] ? 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) [ 22.060690][ T520] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.060693][ T520] put_chars (drivers/char/virtio_console.c:1176) [ 22.060695][ T520] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 22.060698][ T520] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.060701][ T520] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.060706][ T520] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.060708][ T520] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.060712][ T520] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.060716][ T520] ? mark_usage (kernel/locking/lockdep.c:4690) [ 22.060718][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.060719][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.060723][ T520] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.060725][ T520] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 22.060729][ T520] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.060731][ T520] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.060735][ T520] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.060739][ T520] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.060741][ T520] ? 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)) [ 22.060744][ T520] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.060747][ T520] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.060751][ T520] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.060755][ T520] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.060757][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.060762][ T520] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.060765][ T520] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.060767][ T520] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.060769][ T520] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 22.060773][ T520] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.060774][ T520] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.060778][ T520] vprintk_emit (kernel/printk/printk.c:2479) [ 22.060781][ T520] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.060785][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.060789][ T520] _printk (kernel/printk/printk.c:2504) [ 22.060792][ T520] ? snapshot_read.cold (user.c:?) [ 22.060795][ T520] ? 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) [ 22.060798][ T520] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 22.060801][ T520] ? 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) [ 22.060804][ T520] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 22.060808][ T520] ? exit_notify (kernel/exit.c:780) [ 22.060813][ T520] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 22.060815][ T520] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 22.060818][ T520] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.060822][ T520] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.060825][ T520] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.060827][ T520] RIP: 0033:0x7fd238874c49 [ 22.060829][ T520] Code: Unable to access opcode bytes at 0x7fd238874c1f. Code starting with the faulting instruction =========================================== [ 22.060831][ T520] RSP: 002b:00007fd238033e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 22.060833][ T520] RAX: ffffffffffffffda RBX: 00007fd2380346c0 RCX: 00007fd238874c49 [ 22.060835][ T520] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 22.060836][ T520] RBP: 00007fd238033f70 R08: 0000000000000001 R09: 00007fd2380346c0 [ 22.060837][ T520] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fd237834000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print