====================================== | [ 8.720255][ T166] softirqs last disabled at (219591): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.720257][ T166] Preemption disabled at: | [ 8.720258][ T166] 0x0 | [ 8.720268][ T166] Tainted: [W]=WARN [ 8.720269][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.720270][ T166] Call Trace: [ 8.720272][ T166] [ 8.720273][ T166] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.720279][ T166] __might_resched.cold (kernel/sched/core.c:9234) [ 8.720283][ T166] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.720287][ T166] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.720292][ T166] __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)) [ 8.720294][ T166] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.720300][ T166] ? 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) [ 8.720302][ T166] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.720305][ T166] put_chars (drivers/char/virtio_console.c:1176) [ 8.720308][ T166] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.720310][ T166] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.720315][ T166] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.720320][ T166] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.720326][ T166] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.720328][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.720331][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.720334][ T166] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.720338][ T166] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.720342][ T166] ? 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)) [ 8.720345][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.720347][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.720351][ T166] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.720354][ T166] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.720356][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.720361][ T166] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.720364][ T166] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.720366][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.720368][ T166] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.720371][ T166] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.720373][ T166] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.720376][ T166] vprintk_emit (kernel/printk/printk.c:2479) [ 8.720380][ T166] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.720382][ T166] ? 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) [ 8.720385][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.720388][ T166] _printk (kernel/printk/printk.c:2504) [ 8.720391][ T166] ? snapshot_read.cold (user.c:?) [ 8.720394][ T166] ? 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) [ 8.720396][ T166] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.720400][ T166] ? 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) [ 8.720403][ T166] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.720406][ T166] ? exit_notify (kernel/exit.c:780) [ 8.720407][ T166] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.720410][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.720414][ T166] do_group_exit (kernel/exit.c:1151) [ 8.720417][ T166] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.720418][ T166] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.720421][ T166] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.720425][ T166] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.720427][ T166] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.720430][ T166] RIP: 0033:0x7f810540b1b8 [ 8.720432][ T166] Code: Unable to access opcode bytes at 0x7f810540b18e. Code starting with the faulting instruction =========================================== [ 8.720433][ T166] RSP: 002b:00007ffd49876398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.720436][ T166] RAX: ffffffffffffffda RBX: 00007f810553bf88 RCX: 00007f810540b1b8 [ 8.720437][ T166] RDX: 00007f8105348a88 RSI: ffffffffffffff90 RDI: 0000000000000000 [ 8.720438][ T166] RBP: 00007ffd498763f0 R08: 0000000000000000 R09: 0000000000000000 [ 8.720439][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000415df0 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print