====================================== | [ 10.940977][ T187] softirqs last disabled at (29389): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.940979][ T187] Preemption disabled at: | [ 10.940979][ T187] 0x0 | [ 10.940989][ T187] Tainted: [W]=WARN [ 10.940990][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.940992][ T187] Call Trace: [ 10.940994][ T187] [ 10.940995][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.941002][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 10.941007][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.941011][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.941016][ T187] __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)) [ 10.941018][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.941024][ T187] ? 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) [ 10.941027][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.941030][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 10.941033][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.941035][ T187] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.941040][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.941045][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.941051][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.941053][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.941056][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.941060][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.941064][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.941065][ T187] ? 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)) [ 10.941069][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.941071][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.941075][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.941079][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.941081][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.941086][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.941089][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.941091][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.941093][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.941097][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.941099][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.941102][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 10.941106][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.941109][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.941113][ T187] _printk (kernel/printk/printk.c:2504) [ 10.941117][ T187] ? snapshot_read.cold (user.c:?) [ 10.941120][ T187] ? 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) [ 10.941122][ T187] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.941126][ T187] ? 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) [ 10.941129][ T187] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.941133][ T187] ? exit_notify (kernel/exit.c:780) [ 10.941135][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.941138][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.941142][ T187] do_group_exit (kernel/exit.c:1151) [ 10.941145][ T187] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.941147][ T187] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.941149][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.941152][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.941155][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.941157][ T187] RIP: 0033:0x7f680a2231b8 [ 10.941160][ T187] Code: Unable to access opcode bytes at 0x7f680a22318e. Code starting with the faulting instruction =========================================== [ 10.941161][ T187] RSP: 002b:00007ffef939b528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.941163][ T187] RAX: ffffffffffffffda RBX: 00007f680a353f88 RCX: 00007f680a2231b8 [ 10.941165][ T187] RDX: 00007f6809f6dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.941172][ T187] RBP: 00007ffef939b580 R08: 0000000000000000 R09: 0000000000008010 [ 10.941173][ T187] R10: 00007ffef939b340 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print