====================================== | [ 9.816999][ T166] softirqs last disabled at (1398585): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.817001][ T166] Preemption disabled at: | [ 9.817002][ T166] 0x0 | [ 9.817012][ T166] Tainted: [W]=WARN [ 9.817013][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.817015][ T166] Call Trace: [ 9.817016][ T166] [ 9.817018][ T166] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.817024][ T166] __might_resched.cold (kernel/sched/core.c:9234) [ 9.817028][ T166] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.817032][ 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) [ 9.817037][ 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)) [ 9.817039][ T166] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.817045][ 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) [ 9.817048][ T166] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.817051][ T166] put_chars (drivers/char/virtio_console.c:1176) [ 9.817054][ T166] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.817056][ T166] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.817061][ T166] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.817066][ T166] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.817072][ T166] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.817074][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.817077][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.817081][ T166] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.817084][ T166] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.817086][ 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)) [ 9.817089][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.817091][ T166] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.817099][ T166] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.817104][ T166] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.817105][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.817110][ T166] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.817113][ T166] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.817115][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.817117][ T166] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.817120][ T166] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.817122][ T166] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.817125][ T166] vprintk_emit (kernel/printk/printk.c:2479) [ 9.817129][ T166] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.817132][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.817136][ T166] _printk (kernel/printk/printk.c:2504) [ 9.817139][ T166] ? snapshot_read.cold (user.c:?) [ 9.817142][ 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) [ 9.817144][ T166] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.817148][ 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) [ 9.817150][ T166] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.817154][ T166] ? exit_notify (kernel/exit.c:780) [ 9.817155][ T166] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.817158][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.817162][ T166] do_group_exit (kernel/exit.c:1151) [ 9.817164][ T166] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.817166][ T166] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.817169][ T166] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.817172][ T166] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.817175][ T166] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.817177][ T166] RIP: 0033:0x7f9a0d8bb1b8 [ 9.817179][ T166] Code: Unable to access opcode bytes at 0x7f9a0d8bb18e. Code starting with the faulting instruction =========================================== [ 9.817181][ T166] RSP: 002b:00007ffc6578aff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.817183][ T166] RAX: ffffffffffffffda RBX: 00007f9a0d9ebf88 RCX: 00007f9a0d8bb1b8 [ 9.817184][ T166] RDX: 00007f9a0d7f8a88 RSI: ffffffffffffff90 RDI: 0000000000000000 [ 9.817185][ T166] RBP: 00007ffc6578b050 R08: 0000000000000000 R09: 0000000000000000 [ 9.817186][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000417df0 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print