====================================== | [ 38.499703][ T967] softirqs last disabled at (222629): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 38.499705][ T967] Preemption disabled at: | [ 38.499705][ T967] 0x0 | [ 38.499716][ T967] Tainted: [W]=WARN [ 38.499717][ T967] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.499719][ T967] Call Trace: [ 38.499720][ T967] [ 38.499722][ T967] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.499728][ T967] __might_resched.cold (kernel/sched/core.c:9234) [ 38.499733][ T967] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.499737][ T967] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 38.499741][ T967] __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)) [ 38.499744][ T967] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.499750][ T967] ? 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) [ 38.499753][ T967] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.499756][ T967] put_chars (drivers/char/virtio_console.c:1176) [ 38.499760][ T967] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.499762][ T967] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.499766][ T967] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.499771][ T967] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.499779][ T967] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.499781][ T967] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.499784][ T967] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.499787][ T967] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.499791][ T967] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.499793][ T967] ? 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)) [ 38.499796][ T967] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.499798][ T967] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.499802][ T967] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.499806][ T967] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.499807][ T967] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.499812][ T967] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.499815][ T967] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.499817][ T967] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.499819][ T967] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 38.499822][ T967] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.499824][ T967] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.499827][ T967] vprintk_emit (kernel/printk/printk.c:2479) [ 38.499830][ T967] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.499834][ T967] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.499837][ T967] _printk (kernel/printk/printk.c:2504) [ 38.499841][ T967] ? snapshot_read.cold (user.c:?) [ 38.499844][ T967] ? 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) [ 38.499846][ T967] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 38.499849][ T967] ? 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) [ 38.499852][ T967] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 38.499856][ T967] ? exit_notify (kernel/exit.c:780) [ 38.499858][ T967] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 38.499860][ T967] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.499864][ T967] do_group_exit (kernel/exit.c:1151) [ 38.499868][ T967] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 38.499870][ T967] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 38.499872][ T967] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 38.499875][ T967] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 38.499878][ T967] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 38.499881][ T967] RIP: 0033:0x7f339b9021b8 [ 38.499883][ T967] Code: Unable to access opcode bytes at 0x7f339b90218e. Code starting with the faulting instruction =========================================== [ 38.499884][ T967] RSP: 002b:00007fff72206ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 38.499886][ T967] RAX: ffffffffffffffda RBX: 00007f339ba32f88 RCX: 00007f339b9021b8 [ 38.499888][ T967] RDX: 00007f339b83fa48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 38.499889][ T967] RBP: 00007fff72206d40 R08: 0000000000000000 R09: 0000000000000000 [ 38.499890][ T967] R10: 00007fff72206b80 R11: 0000000000000246 R12: 0000000000000001 [ 38.499890][ T967] R13: 0000000000000000 R14: 00007f339ba31680 R15: 00007f339ba32fa0 | [ 44.289224][ T1014] softirqs last disabled at (347683): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 44.289227][ T1014] Preemption disabled at: | [ 44.289228][ T1014] 0x0 | [ 44.289242][ T1014] Tainted: [W]=WARN [ 44.289249][ T1014] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 44.289251][ T1014] Call Trace: [ 44.289253][ T1014] [ 44.289256][ T1014] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 44.289264][ T1014] __might_resched.cold (kernel/sched/core.c:9234) [ 44.289270][ T1014] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 44.289275][ T1014] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 44.289282][ T1014] __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)) [ 44.289285][ T1014] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.289295][ T1014] ? 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) [ 44.289298][ T1014] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.289304][ T1014] put_chars (drivers/char/virtio_console.c:1176) [ 44.289309][ T1014] ? __send_to_port (drivers/char/virtio_console.c:654) [ 44.289311][ T1014] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 44.289318][ T1014] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 44.289327][ T1014] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 44.289338][ T1014] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 44.289342][ T1014] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.289346][ T1014] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.289353][ T1014] console_emit_next_record (kernel/printk/printk.c:3183) [ 44.289359][ T1014] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 44.289361][ T1014] ? 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)) [ 44.289366][ T1014] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.289370][ T1014] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.289376][ T1014] console_flush_one_record (kernel/printk/printk.c:3268) [ 44.289383][ T1014] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 44.289385][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.289394][ T1014] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 44.289398][ T1014] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 44.289401][ T1014] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.289404][ T1014] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 44.289410][ T1014] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 44.289412][ T1014] ? vprintk_emit (kernel/printk/printk.c:2478) [ 44.289418][ T1014] vprintk_emit (kernel/printk/printk.c:2479) [ 44.289424][ T1014] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 44.289429][ T1014] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.289435][ T1014] _printk (kernel/printk/printk.c:2504) [ 44.289440][ T1014] ? snapshot_read.cold (user.c:?) [ 44.289445][ T1014] ? 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) [ 44.289449][ T1014] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 44.289455][ T1014] ? 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) [ 44.289459][ T1014] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 44.289464][ T1014] ? exit_notify (kernel/exit.c:780) [ 44.289467][ T1014] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.289471][ T1014] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.289478][ T1014] do_group_exit (kernel/exit.c:1151) [ 44.289483][ T1014] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 44.289487][ T1014] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 44.289489][ T1014] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 44.289494][ T1014] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 44.289498][ T1014] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 44.289502][ T1014] RIP: 0033:0x7f7e2911c1b8 [ 44.289505][ T1014] Code: Unable to access opcode bytes at 0x7f7e2911c18e. Code starting with the faulting instruction =========================================== [ 44.289507][ T1014] RSP: 002b:00007ffeac6a7ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 44.289510][ T1014] RAX: ffffffffffffffda RBX: 00007f7e2924cf88 RCX: 00007f7e2911c1b8 [ 44.289512][ T1014] RDX: 00007f7e29059a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 44.289514][ T1014] RBP: 00007ffeac6a7d40 R08: 0000000000000000 R09: 0000000000000000 [ 44.289515][ T1014] R10: 00007ffeac6a7b80 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print