====================================== | [ 9.669790][ T163] softirqs last disabled at (5277): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.669793][ T163] Preemption disabled at: | [ 9.669793][ T163] 0x0 | [ 9.669804][ T163] Tainted: [W]=WARN [ 9.669805][ T163] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.669806][ T163] Call Trace: [ 9.669808][ T163] [ 9.669809][ T163] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.669815][ T163] __might_resched.cold (kernel/sched/core.c:9234) [ 9.669819][ T163] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.669822][ T163] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.669828][ T163] __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)) [ 9.669830][ T163] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.669836][ T163] ? 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) [ 9.669839][ T163] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.669842][ T163] put_chars (drivers/char/virtio_console.c:1176) [ 9.669845][ T163] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.669847][ T163] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.669851][ T163] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.669856][ T163] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.669863][ T163] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.669865][ T163] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.669867][ T163] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.669871][ T163] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.669875][ T163] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.669876][ T163] ? 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)) [ 9.669879][ T163] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.669880][ T163] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.669884][ T163] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.669888][ T163] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.669889][ T163] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.669894][ T163] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.669896][ T163] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.669898][ T163] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.669900][ T163] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.669903][ T163] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.669905][ T163] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.669908][ T163] vprintk_emit (kernel/printk/printk.c:2479) [ 9.669911][ T163] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.669914][ T163] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.669918][ T163] _printk (kernel/printk/printk.c:2504) [ 9.669921][ T163] ? snapshot_read.cold (user.c:?) [ 9.669924][ T163] ? 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) [ 9.669927][ T163] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.669930][ T163] ? 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) [ 9.669933][ T163] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.669937][ T163] ? exit_notify (kernel/exit.c:780) [ 9.669938][ T163] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.669941][ T163] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.669945][ T163] do_group_exit (kernel/exit.c:1151) [ 9.669947][ T163] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.669949][ T163] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.669952][ T163] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.669956][ T163] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.669959][ T163] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.669961][ T163] RIP: 0033:0x7f9f4e6b71b8 [ 9.669963][ T163] Code: Unable to access opcode bytes at 0x7f9f4e6b718e. Code starting with the faulting instruction =========================================== [ 9.669964][ T163] RSP: 002b:00007ffcddfea848 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.669967][ T163] RAX: ffffffffffffffda RBX: 00007f9f4e7e7f88 RCX: 00007f9f4e6b71b8 [ 9.669968][ T163] RDX: 00007f9f4e5f5e88 RSI: ffffffffffffffb0 RDI: 0000000000000001 [ 9.669969][ T163] RBP: 00007ffcddfea8a0 R08: 0000000000000000 R09: 0000000000000000 [ 9.669970][ T163] R10: 00007ffcddfea6e0 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print