====================================== | [ 10.597331][ T247] softirqs last disabled at (40757): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.597333][ T247] Preemption disabled at: | [ 10.597334][ T247] 0x0 | [ 10.597344][ T247] Tainted: [W]=WARN [ 10.597345][ T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.597347][ T247] Call Trace: [ 10.597349][ T247] [ 10.597350][ T247] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.597356][ T247] __might_resched.cold (kernel/sched/core.c:9234) [ 10.597361][ T247] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.597365][ T247] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.597369][ T247] __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)) [ 10.597371][ T247] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.597378][ T247] ? 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) [ 10.597380][ T247] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.597384][ T247] put_chars (drivers/char/virtio_console.c:1176) [ 10.597386][ T247] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.597387][ T247] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.597391][ T247] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.597396][ T247] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.597404][ T247] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.597406][ T247] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.597408][ T247] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.597412][ T247] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.597416][ T247] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.597418][ T247] ? 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)) [ 10.597421][ T247] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.597423][ T247] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.597427][ T247] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.597431][ T247] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.597433][ T247] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.597438][ T247] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.597441][ T247] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.597442][ T247] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.597444][ T247] ? 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) [ 10.597448][ T247] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.597449][ T247] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.597452][ T247] vprintk_emit (kernel/printk/printk.c:2479) [ 10.597455][ T247] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.597458][ T247] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.597461][ T247] _printk (kernel/printk/printk.c:2504) [ 10.597465][ T247] ? snapshot_read.cold (user.c:?) [ 10.597467][ T247] ? 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) [ 10.597470][ T247] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.597474][ T247] ? 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) [ 10.597476][ T247] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.597480][ T247] ? exit_notify (kernel/exit.c:780) [ 10.597482][ T247] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.597484][ T247] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.597488][ T247] do_group_exit (kernel/exit.c:1151) [ 10.597490][ T247] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.597492][ T247] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.597495][ T247] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.597499][ T247] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.597502][ T247] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.597504][ T247] RIP: 0033:0x7f5bdbfd61b8 [ 10.597506][ T247] Code: Unable to access opcode bytes at 0x7f5bdbfd618e. Code starting with the faulting instruction =========================================== [ 10.597507][ T247] RSP: 002b:00007ffed3818988 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.597510][ T247] RAX: ffffffffffffffda RBX: 00007f5bdc106f88 RCX: 00007f5bdbfd61b8 [ 10.597511][ T247] RDX: 00007f5bdbd20fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.597512][ T247] RBP: 00007ffed38189e0 R08: 0000000000000000 R09: 0000000000000000 [ 10.597513][ T247] R10: 00007ffed38187a0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print