====================================== | [ 8.861587][ T165] softirqs last disabled at (89607): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.861589][ T165] Preemption disabled at: | [ 8.861590][ T165] 0x0 | [ 8.861600][ T165] Tainted: [W]=WARN [ 8.861601][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.861602][ T165] Call Trace: [ 8.861604][ T165] [ 8.861605][ T165] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.861611][ T165] __might_resched.cold (kernel/sched/core.c:9234) [ 8.861615][ T165] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.861619][ T165] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.861624][ T165] __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)) [ 8.861626][ T165] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.861632][ T165] ? 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) [ 8.861635][ T165] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.861638][ T165] put_chars (drivers/char/virtio_console.c:1176) [ 8.861641][ T165] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.861642][ T165] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.861647][ T165] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.861652][ T165] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.861659][ T165] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.861661][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.861663][ T165] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.861667][ T165] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.861671][ T165] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.861673][ T165] ? 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)) [ 8.861676][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.861678][ T165] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.861682][ T165] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.861686][ T165] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.861687][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.861692][ T165] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.861695][ T165] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.861697][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.861699][ T165] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.861703][ T165] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.861704][ T165] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.861708][ T165] vprintk_emit (kernel/printk/printk.c:2479) [ 8.861711][ T165] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.861714][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.861718][ T165] _printk (kernel/printk/printk.c:2504) [ 8.861721][ T165] ? snapshot_read.cold (user.c:?) [ 8.861724][ T165] ? 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) [ 8.861726][ T165] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.861730][ T165] ? 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) [ 8.861733][ T165] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.861736][ T165] ? exit_notify (kernel/exit.c:780) [ 8.861737][ T165] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.861740][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.861744][ T165] do_group_exit (kernel/exit.c:1151) [ 8.861747][ T165] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.861749][ T165] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.861751][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.861755][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.861757][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.861759][ T165] RIP: 0033:0x7fc4e522b1b8 [ 8.861762][ T165] Code: Unable to access opcode bytes at 0x7fc4e522b18e. Code starting with the faulting instruction =========================================== [ 8.861763][ T165] RSP: 002b:00007fffeeeff4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.861765][ T165] RAX: ffffffffffffffda RBX: 00007fc4e535bf88 RCX: 00007fc4e522b1b8 [ 8.861766][ T165] RDX: 00007fc4e5019cc8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 8.861767][ T165] RBP: 00007fffeeeff530 R08: 0000000000000000 R09: 0000000000000050 [ 8.861768][ T165] R10: 00007fffeeeff330 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print