====================================== | [ 13.509216][ T199] softirqs last disabled at (3905403): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 13.509219][ T199] Preemption disabled at: | [ 13.509219][ T199] 0x0 | [ 13.509230][ T199] Tainted: [W]=WARN [ 13.509231][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.509233][ T199] Call Trace: [ 13.509235][ T199] [ 13.509236][ T199] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.509242][ T199] __might_resched.cold (kernel/sched/core.c:9234) [ 13.509246][ T199] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.509250][ 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) [ 13.509255][ 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)) [ 13.509257][ T199] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.509264][ 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) [ 13.509267][ T199] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.509270][ T199] put_chars (drivers/char/virtio_console.c:1176) [ 13.509273][ T199] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.509275][ T199] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.509279][ T199] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.509284][ T199] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.509291][ T199] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.509293][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.509295][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.509300][ T199] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.509303][ T199] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.509305][ 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)) [ 13.509307][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.509309][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.509313][ T199] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.509317][ T199] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.509318][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.509324][ T199] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.509326][ T199] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.509327][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.509329][ T199] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.509333][ T199] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.509335][ T199] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.509338][ T199] vprintk_emit (kernel/printk/printk.c:2479) [ 13.509341][ T199] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.509344][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.509348][ T199] _printk (kernel/printk/printk.c:2504) [ 13.509352][ T199] ? snapshot_read.cold (user.c:?) [ 13.509355][ 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) [ 13.509358][ T199] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 13.509362][ 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) [ 13.509365][ T199] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 13.509369][ T199] ? exit_notify (kernel/exit.c:780) [ 13.509370][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.509373][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.509377][ T199] do_group_exit (kernel/exit.c:1151) [ 13.509380][ T199] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 13.509382][ T199] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 13.509385][ T199] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.509389][ T199] ? irq_exit_rcu (kernel/softirq.c:786) [ 13.509392][ T199] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.509394][ T199] RIP: 0033:0x479678 [ 13.509396][ T199] Code: Unable to access opcode bytes at 0x47964e. Code starting with the faulting instruction =========================================== [ 13.509397][ T199] RSP: 002b:00007ffe28ff65f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.509400][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 13.509401][ T199] RDX: 0000000003098708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 13.509402][ T199] RBP: 00007ffe28ff6650 R08: 0000000000000000 R09: 00000000030993e0 [ 13.509403][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe28ff6788 [ 13.509404][ T199] R13: 00007ffe28ff6810 R14: 0000000000000000 R15: 000000000054d560 | [ 15.254532][ T155] softirqs last disabled at (77093): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 15.254534][ T155] Preemption disabled at: | [ 15.254535][ T155] 0x0 | [ 15.254545][ T155] Tainted: [W]=WARN [ 15.254546][ T155] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.254548][ T155] Call Trace: [ 15.254549][ T155] [ 15.254551][ T155] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.254557][ T155] __might_resched.cold (kernel/sched/core.c:9234) [ 15.254561][ T155] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.254565][ T155] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.254570][ T155] __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)) [ 15.254573][ T155] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.254579][ T155] ? 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) [ 15.254582][ T155] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.254585][ T155] put_chars (drivers/char/virtio_console.c:1176) [ 15.254588][ T155] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.254590][ T155] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.254594][ T155] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.254600][ T155] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.254607][ T155] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.254609][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.254611][ T155] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.254615][ T155] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.254619][ T155] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.254620][ T155] ? 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)) [ 15.254623][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.254625][ T155] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.254629][ T155] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.254632][ T155] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.254634][ T155] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.254639][ T155] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.254641][ T155] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.254643][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.254645][ T155] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.254649][ T155] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.254651][ T155] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.254653][ T155] vprintk_emit (kernel/printk/printk.c:2479) [ 15.254657][ T155] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.254660][ T155] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.254664][ T155] _printk (kernel/printk/printk.c:2504) [ 15.254668][ T155] ? snapshot_read.cold (user.c:?) [ 15.254670][ T155] ? 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) [ 15.254673][ T155] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.254677][ T155] ? 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) [ 15.254680][ T155] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 15.254684][ T155] ? exit_notify (kernel/exit.c:780) [ 15.254685][ T155] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.254688][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.254692][ T155] do_group_exit (kernel/exit.c:1151) [ 15.254695][ T155] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 15.254697][ T155] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 15.254700][ T155] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.254704][ T155] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.254707][ T155] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.254709][ T155] RIP: 0033:0x7f8c4b03f1b8 [ 15.254711][ T155] Code: Unable to access opcode bytes at 0x7f8c4b03f18e. Code starting with the faulting instruction =========================================== [ 15.254712][ T155] RSP: 002b:00007fff91f97e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.254715][ T155] RAX: ffffffffffffffda RBX: 00007f8c4b16ff88 RCX: 00007f8c4b03f1b8 [ 15.254716][ T155] RDX: 00007f8c4ae2dcc8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 15.254717][ T155] RBP: 00007fff91f97eb0 R08: 0000000000000000 R09: 0000000000000050 [ 15.254718][ T155] R10: 00007fff91f97cb0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print