====================================== | [ 9.485498][ T209] softirqs last disabled at (38905): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.485500][ T209] Preemption disabled at: | [ 9.485501][ T209] 0x0 | [ 9.485510][ T209] Tainted: [W]=WARN [ 9.485511][ T209] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.485513][ T209] Call Trace: [ 9.485515][ T209] [ 9.485516][ T209] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.485522][ T209] __might_resched.cold (kernel/sched/core.c:9234) [ 9.485527][ T209] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.485531][ T209] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.485535][ T209] __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)) [ 9.485537][ T209] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.485544][ T209] ? 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) [ 9.485547][ T209] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.485550][ T209] put_chars (drivers/char/virtio_console.c:1176) [ 9.485553][ T209] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.485554][ T209] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.485557][ T209] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.485562][ T209] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.485570][ T209] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.485572][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.485574][ T209] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.485578][ T209] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.485582][ T209] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.485584][ T209] ? 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)) [ 9.485587][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.485588][ T209] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.485592][ T209] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.485596][ T209] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.485598][ T209] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.485603][ T209] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.485606][ T209] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.485608][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.485609][ T209] ? 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) [ 9.485613][ T209] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.485615][ T209] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.485617][ T209] vprintk_emit (kernel/printk/printk.c:2479) [ 9.485620][ T209] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.485623][ T209] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.485627][ T209] _printk (kernel/printk/printk.c:2504) [ 9.485630][ T209] ? snapshot_read.cold (user.c:?) [ 9.485633][ T209] ? 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) [ 9.485636][ T209] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.485639][ T209] ? 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) [ 9.485642][ T209] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.485646][ T209] ? exit_notify (kernel/exit.c:780) [ 9.485647][ T209] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.485650][ T209] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.485653][ T209] do_group_exit (kernel/exit.c:1151) [ 9.485656][ T209] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.485657][ T209] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.485660][ T209] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.485664][ T209] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.485667][ T209] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.485669][ T209] RIP: 0033:0x7f8b62b9c1b8 [ 9.485671][ T209] Code: Unable to access opcode bytes at 0x7f8b62b9c18e. Code starting with the faulting instruction =========================================== [ 9.485672][ T209] RSP: 002b:00007ffdc9b6d6f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.485674][ T209] RAX: ffffffffffffffda RBX: 00007f8b62cccf88 RCX: 00007f8b62b9c1b8 [ 9.485675][ T209] RDX: 00007f8b628e6fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.485676][ T209] RBP: 00007ffdc9b6d750 R08: 0000000000000000 R09: 0000000000008010 [ 9.485677][ T209] R10: 00007ffdc9b6d510 R11: 0000000000000246 R12: 0000000000000001 [ 9.485678][ T209] R13: 0000000000000000 R14: 00007f8b62ccb680 R15: 00007f8b62cccfa0 | [ 14.345742][ T246] softirqs last disabled at (28433): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 14.345744][ T246] Preemption disabled at: | [ 14.345745][ T246] 0x0 | [ 14.345754][ T246] Tainted: [W]=WARN [ 14.345755][ T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.345757][ T246] Call Trace: [ 14.345759][ T246] [ 14.345760][ T246] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.345766][ T246] __might_resched.cold (kernel/sched/core.c:9234) [ 14.345770][ T246] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.345774][ T246] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.345779][ T246] __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)) [ 14.345780][ T246] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.345787][ T246] ? 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) [ 14.345790][ T246] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.345793][ T246] put_chars (drivers/char/virtio_console.c:1176) [ 14.345796][ T246] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.345797][ T246] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.345800][ T246] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.345806][ T246] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.345813][ T246] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.345815][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.345817][ T246] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.345821][ T246] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.345825][ T246] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.345827][ T246] ? 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)) [ 14.345830][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.345832][ T246] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.345836][ T246] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.345840][ T246] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.345841][ T246] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.345847][ T246] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.345849][ T246] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.345851][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.345853][ T246] ? 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) [ 14.345856][ T246] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.345858][ T246] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.345861][ T246] vprintk_emit (kernel/printk/printk.c:2479) [ 14.345864][ T246] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.345866][ T246] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.345870][ T246] _printk (kernel/printk/printk.c:2504) [ 14.345874][ T246] ? snapshot_read.cold (user.c:?) [ 14.345876][ T246] ? 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) [ 14.345879][ T246] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.345883][ T246] ? 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) [ 14.345885][ T246] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 14.345889][ T246] ? exit_notify (kernel/exit.c:780) [ 14.345890][ T246] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.345893][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.345896][ T246] do_group_exit (kernel/exit.c:1151) [ 14.345899][ T246] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 14.345901][ T246] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 14.345903][ T246] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.345907][ T246] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.345910][ T246] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.345912][ T246] RIP: 0033:0x7f34523601b8 [ 14.345914][ T246] Code: Unable to access opcode bytes at 0x7f345236018e. Code starting with the faulting instruction =========================================== [ 14.345915][ T246] RSP: 002b:00007ffc00d26598 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 14.345921][ T246] RAX: ffffffffffffffda RBX: 00007f3452490f88 RCX: 00007f34523601b8 [ 14.345922][ T246] RDX: 00007f34520aafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 14.345924][ T246] RBP: 00007ffc00d265f0 R08: 0000000000000000 R09: 0000000000008010 [ 14.345924][ T246] R10: 00007ffc00d263b0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print