====================================== | [ 9.460652][ T194] softirqs last disabled at (28205): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.460654][ T194] Preemption disabled at: | [ 9.460655][ T194] 0x0 | [ 9.460665][ T194] Tainted: [W]=WARN [ 9.460666][ T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.460668][ T194] Call Trace: [ 9.460669][ T194] [ 9.460671][ T194] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.460677][ T194] __might_resched.cold (kernel/sched/core.c:9234) [ 9.460682][ T194] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.460686][ T194] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.460690][ T194] __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)) [ 9.460692][ T194] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.460699][ T194] ? 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) [ 9.460701][ T194] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.460705][ T194] put_chars (drivers/char/virtio_console.c:1176) [ 9.460709][ T194] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.460711][ T194] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.460715][ T194] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.460720][ T194] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.460728][ T194] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.460730][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.460733][ T194] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.460736][ T194] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.460740][ T194] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.460742][ T194] ? 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)) [ 9.460745][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.460747][ T194] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.460750][ T194] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.460754][ T194] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.460756][ T194] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.460761][ T194] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.460763][ T194] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.460765][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.460767][ T194] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.460770][ T194] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.460772][ T194] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.460775][ T194] vprintk_emit (kernel/printk/printk.c:2479) [ 9.460778][ T194] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.460782][ T194] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.460785][ T194] _printk (kernel/printk/printk.c:2504) [ 9.460789][ T194] ? snapshot_read.cold (user.c:?) [ 9.460792][ T194] ? 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) [ 9.460794][ T194] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.460798][ T194] ? 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) [ 9.460800][ T194] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.460804][ T194] ? exit_notify (kernel/exit.c:780) [ 9.460806][ T194] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.460808][ T194] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.460812][ T194] do_group_exit (kernel/exit.c:1151) [ 9.460815][ T194] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.460818][ T194] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.460820][ T194] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.460823][ T194] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.460829][ T194] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.460831][ T194] RIP: 0033:0x7f9e489661b8 [ 9.460834][ T194] Code: Unable to access opcode bytes at 0x7f9e4896618e. Code starting with the faulting instruction =========================================== [ 9.460835][ T194] RSP: 002b:00007fff39ed7e18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.460837][ T194] RAX: ffffffffffffffda RBX: 00007f9e48a96f88 RCX: 00007f9e489661b8 [ 9.460839][ T194] RDX: 00007f9e486b0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.460840][ T194] RBP: 00007fff39ed7e70 R08: 0000000000000000 R09: 0000000000000050 [ 9.460840][ T194] R10: 00007fff39ed7c30 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print