====================================== | [ 10.279873][ T193] softirqs last disabled at (22853): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.279875][ T193] Preemption disabled at: | [ 10.279876][ T193] 0x0 | [ 10.279886][ T193] Tainted: [W]=WARN [ 10.279887][ T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.279889][ T193] Call Trace: [ 10.279890][ T193] [ 10.279892][ T193] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.279898][ T193] __might_resched.cold (kernel/sched/core.c:9234) [ 10.279903][ T193] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.279907][ T193] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.279912][ T193] __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)) [ 10.279914][ T193] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.279920][ T193] ? 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) [ 10.279922][ T193] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.279925][ T193] put_chars (drivers/char/virtio_console.c:1176) [ 10.279928][ T193] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.279929][ T193] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.279934][ T193] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.279939][ T193] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.279945][ T193] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.279947][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.279950][ T193] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.279954][ T193] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.279957][ T193] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.279959][ T193] ? 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)) [ 10.279962][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.279964][ T193] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.279968][ T193] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.279972][ T193] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.279974][ T193] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.279979][ T193] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.279982][ T193] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.279984][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.279986][ T193] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.279989][ T193] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.279991][ T193] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.279994][ T193] vprintk_emit (kernel/printk/printk.c:2479) [ 10.279998][ T193] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.280001][ T193] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.280005][ T193] _printk (kernel/printk/printk.c:2504) [ 10.280008][ T193] ? snapshot_read.cold (user.c:?) [ 10.280011][ T193] ? 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) [ 10.280014][ T193] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.280017][ T193] ? 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) [ 10.280020][ T193] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.280024][ T193] ? exit_notify (kernel/exit.c:780) [ 10.280026][ T193] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.280028][ T193] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.280033][ T193] do_group_exit (kernel/exit.c:1151) [ 10.280035][ T193] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.280037][ T193] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.280039][ T193] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.280042][ T193] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.280045][ T193] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.280048][ T193] RIP: 0033:0x7fb18c10f1b8 [ 10.280050][ T193] Code: Unable to access opcode bytes at 0x7fb18c10f18e. Code starting with the faulting instruction =========================================== [ 10.280051][ T193] RSP: 002b:00007ffe7469f008 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.280053][ T193] RAX: ffffffffffffffda RBX: 00007fb18c23ff88 RCX: 00007fb18c10f1b8 [ 10.280055][ T193] RDX: 00007fb18be59fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.280056][ T193] RBP: 00007ffe7469f060 R08: 0000000000000000 R09: 0000000000008010 [ 10.280056][ T193] R10: 00007ffe7469ee20 R11: 0000000000000246 R12: 0000000000000001 [ 10.280057][ T193] R13: 0000000000000000 R14: 00007fb18c23e680 R15: 00007fb18c23ffa0 | [ 12.391477][ T265] softirqs last disabled at (24333): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.391480][ T265] Preemption disabled at: | [ 12.391480][ T265] 0x0 | [ 12.391492][ T265] Tainted: [W]=WARN [ 12.391492][ T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.391495][ T265] Call Trace: [ 12.391496][ T265] [ 12.391498][ T265] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.391504][ T265] __might_resched.cold (kernel/sched/core.c:9234) [ 12.391508][ T265] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.391512][ T265] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.391517][ T265] __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)) [ 12.391520][ T265] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.391525][ T265] ? 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) [ 12.391528][ T265] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.391532][ T265] put_chars (drivers/char/virtio_console.c:1176) [ 12.391535][ T265] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.391536][ T265] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.391541][ T265] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.391546][ T265] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.391552][ T265] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.391554][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.391557][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.391561][ T265] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.391565][ T265] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.391567][ T265] ? 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)) [ 12.391570][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.391572][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.391576][ T265] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.391580][ T265] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.391582][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.391587][ T265] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.391590][ T265] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.391592][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.391594][ T265] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.391598][ T265] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.391600][ T265] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.391603][ T265] vprintk_emit (kernel/printk/printk.c:2479) [ 12.391607][ T265] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.391611][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.391615][ T265] _printk (kernel/printk/printk.c:2504) [ 12.391618][ T265] ? snapshot_read.cold (user.c:?) [ 12.391621][ T265] ? 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) [ 12.391624][ T265] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.391628][ T265] ? 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) [ 12.391631][ T265] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.391634][ T265] ? exit_notify (kernel/exit.c:780) [ 12.391636][ T265] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.391639][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.391643][ T265] do_group_exit (kernel/exit.c:1151) [ 12.391646][ T265] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.391648][ T265] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.391650][ T265] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.391652][ T265] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.391655][ T265] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.391657][ T265] RIP: 0033:0x7f6bcf0b21b8 [ 12.391660][ T265] Code: Unable to access opcode bytes at 0x7f6bcf0b218e. Code starting with the faulting instruction =========================================== [ 12.391661][ T265] RSP: 002b:00007ffd5d5dd898 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.391663][ T265] RAX: ffffffffffffffda RBX: 00007f6bcf1e2f88 RCX: 00007f6bcf0b21b8 [ 12.391665][ T265] RDX: 00007f6bcedfcfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.391666][ T265] RBP: 00007ffd5d5dd8f0 R08: 0000000000000000 R09: 0000000000000050 [ 12.391667][ T265] R10: 00007ffd5d5dd6b0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print