====================================== | [ 55.765925][ T3894] softirqs last disabled at (27109): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 55.765927][ T3894] Preemption disabled at: | [ 55.765928][ T3894] 0x0 | [ 55.765938][ T3894] Tainted: [W]=WARN [ 55.765939][ T3894] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 55.765940][ T3894] Call Trace: [ 55.765942][ T3894] [ 55.765943][ T3894] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 55.765949][ T3894] __might_resched.cold (kernel/sched/core.c:9234) [ 55.765953][ T3894] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 55.765957][ T3894] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 55.765962][ T3894] __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)) [ 55.765964][ T3894] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 55.765971][ T3894] ? 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) [ 55.765974][ T3894] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 55.765977][ T3894] put_chars (drivers/char/virtio_console.c:1176) [ 55.765980][ T3894] ? __send_to_port (drivers/char/virtio_console.c:654) [ 55.765987][ T3894] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 55.765994][ T3894] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 55.765996][ T3894] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 55.766001][ T3894] console_emit_next_record (kernel/printk/printk.c:3183) [ 55.766004][ T3894] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 55.766006][ T3894] ? 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)) [ 55.766008][ T3894] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.766012][ T3894] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 55.766016][ T3894] console_flush_one_record (kernel/printk/printk.c:3268) [ 55.766020][ T3894] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 55.766021][ T3894] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.766027][ T3894] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 55.766029][ T3894] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 55.766030][ T3894] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.766032][ T3894] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 55.766036][ T3894] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 55.766038][ T3894] ? vprintk_emit (kernel/printk/printk.c:2478) [ 55.766041][ T3894] vprintk_emit (kernel/printk/printk.c:2479) [ 55.766044][ T3894] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 55.766047][ T3894] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.766051][ T3894] _printk (kernel/printk/printk.c:2504) [ 55.766054][ T3894] ? snapshot_read.cold (user.c:?) [ 55.766056][ T3894] ? 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) [ 55.766059][ T3894] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 55.766063][ T3894] ? 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) [ 55.766066][ T3894] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 55.766070][ T3894] ? exit_notify (kernel/exit.c:780) [ 55.766071][ T3894] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 55.766074][ T3894] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.766078][ T3894] do_group_exit (kernel/exit.c:1151) [ 55.766081][ T3894] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 55.766083][ T3894] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 55.766086][ T3894] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 55.766089][ T3894] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 55.766093][ T3894] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 55.766095][ T3894] RIP: 0033:0x7fdd5074c1b8 [ 55.766097][ T3894] Code: Unable to access opcode bytes at 0x7fdd5074c18e. Code starting with the faulting instruction =========================================== [ 55.766098][ T3894] RSP: 002b:00007fffc0373a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.766100][ T3894] RAX: ffffffffffffffda RBX: 00007fdd5087cf88 RCX: 00007fdd5074c1b8 [ 55.766102][ T3894] RDX: 00007fdd5054da48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 55.766102][ T3894] RBP: 00007fffc0373a90 R08: 0000000000000000 R09: 0000000000080000 [ 55.766103][ T3894] R10: 00007fffc0373850 R11: 0000000000000246 R12: 0000000000000001 [ 55.766104][ T3894] R13: 0000000000000000 R14: 00007fdd5087b680 R15: 00007fdd5087cfa0 | [ 304.780658][T13893] softirqs last disabled at (39941): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 304.780660][T13893] Preemption disabled at: | [ 304.780661][T13893] 0x0 | [ 304.780671][T13893] Tainted: [W]=WARN [ 304.780672][T13893] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 304.780674][T13893] Call Trace: [ 304.780676][T13893] [ 304.780677][T13893] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 304.780683][T13893] __might_resched.cold (kernel/sched/core.c:9234) [ 304.780688][T13893] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 304.780691][T13893] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 304.780696][T13893] __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)) [ 304.780698][T13893] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 304.780704][T13893] ? 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) [ 304.780707][T13893] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 304.780711][T13893] put_chars (drivers/char/virtio_console.c:1176) [ 304.780714][T13893] ? __send_to_port (drivers/char/virtio_console.c:654) [ 304.780720][T13893] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 304.780727][T13893] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 304.780729][T13893] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 304.780734][T13893] console_emit_next_record (kernel/printk/printk.c:3183) [ 304.780737][T13893] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 304.780738][T13893] ? 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)) [ 304.780741][T13893] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 304.780744][T13893] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 304.780748][T13893] console_flush_one_record (kernel/printk/printk.c:3268) [ 304.780752][T13893] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 304.780753][T13893] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 304.780759][T13893] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 304.780761][T13893] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 304.780762][T13893] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 304.780764][T13893] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 304.780768][T13893] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 304.780769][T13893] ? vprintk_emit (kernel/printk/printk.c:2478) [ 304.780772][T13893] vprintk_emit (kernel/printk/printk.c:2479) [ 304.780777][T13893] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 304.780781][T13893] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 304.780784][T13893] _printk (kernel/printk/printk.c:2504) [ 304.780788][T13893] ? snapshot_read.cold (user.c:?) [ 304.780790][T13893] ? 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) [ 304.780793][T13893] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 304.780797][T13893] ? 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) [ 304.780800][T13893] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 304.780804][T13893] ? exit_notify (kernel/exit.c:780) [ 304.780805][T13893] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 304.780808][T13893] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 304.780812][T13893] do_group_exit (kernel/exit.c:1151) [ 304.780815][T13893] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 304.780817][T13893] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 304.780820][T13893] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 304.780823][T13893] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 304.780826][T13893] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 304.780829][T13893] RIP: 0033:0x7fdfdbc5b1b8 [ 304.780831][T13893] Code: Unable to access opcode bytes at 0x7fdfdbc5b18e. Code starting with the faulting instruction =========================================== [ 304.780832][T13893] RSP: 002b:00007fff0bf7b588 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 304.780835][T13893] RAX: ffffffffffffffda RBX: 00007fdfdbd8bf88 RCX: 00007fdfdbc5b1b8 [ 304.780836][T13893] RDX: 00007fdfdba5ca48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 304.780837][T13893] RBP: 00007fff0bf7b5e0 R08: 0000000000000000 R09: 0000000000000130 [ 304.780838][T13893] R10: 00007fff0bf7b3a0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print