====================================== | [ 12.419799][ T270] softirqs last disabled at (23031): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.419801][ T270] Preemption disabled at: | [ 12.419802][ T270] 0x0 | [ 12.419813][ T270] Tainted: [W]=WARN [ 12.419813][ T270] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.419815][ T270] Call Trace: [ 12.419817][ T270] [ 12.419818][ T270] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.419825][ T270] __might_resched.cold (kernel/sched/core.c:9234) [ 12.419830][ T270] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.419834][ T270] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.419838][ T270] __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)) [ 12.419840][ T270] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.419847][ T270] ? 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) [ 12.419849][ T270] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.419853][ T270] put_chars (drivers/char/virtio_console.c:1176) [ 12.419856][ T270] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.419857][ T270] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.419861][ T270] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.419866][ T270] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.419877][ T270] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.419879][ T270] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.419881][ T270] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.419885][ T270] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.419890][ T270] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.419891][ T270] ? 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)) [ 12.419895][ T270] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.419896][ T270] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.419901][ T270] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.419905][ T270] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.419907][ T270] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.419912][ T270] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.419915][ T270] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.419917][ T270] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.419919][ T270] ? 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) [ 12.419922][ T270] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.419924][ T270] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.419927][ T270] vprintk_emit (kernel/printk/printk.c:2479) [ 12.419930][ T270] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.419933][ T270] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.419937][ T270] _printk (kernel/printk/printk.c:2504) [ 12.419941][ T270] ? snapshot_read.cold (user.c:?) [ 12.419943][ T270] ? 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) [ 12.419946][ T270] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.419950][ T270] ? 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) [ 12.419953][ T270] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.419957][ T270] ? exit_notify (kernel/exit.c:780) [ 12.419958][ T270] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.419961][ T270] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.419965][ T270] do_group_exit (kernel/exit.c:1151) [ 12.419968][ T270] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.419969][ T270] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.419972][ T270] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.419976][ T270] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.419979][ T270] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.419981][ T270] RIP: 0033:0x7f8443e7a1b8 [ 12.419983][ T270] Code: Unable to access opcode bytes at 0x7f8443e7a18e. Code starting with the faulting instruction =========================================== [ 12.419984][ T270] RSP: 002b:00007ffcdf41cd08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.419986][ T270] RAX: ffffffffffffffda RBX: 00007f8443faaf88 RCX: 00007f8443e7a1b8 [ 12.419988][ T270] RDX: 00007f8443bc4fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.419989][ T270] RBP: 00007ffcdf41cd60 R08: 0000000000000000 R09: 0000000000000050 [ 12.419989][ T270] R10: 00007ffcdf41cb20 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print