====================================== | [ 164.791493][ T257] softirqs last disabled at (15850919): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 164.791495][ T257] Preemption disabled at: | [ 164.791496][ T257] 0x0 | [ 164.791507][ T257] Tainted: [W]=WARN [ 164.791508][ T257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 164.791510][ T257] Call Trace: [ 164.791511][ T257] [ 164.791513][ T257] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 164.791519][ T257] __might_resched.cold (kernel/sched/core.c:9234) [ 164.791524][ T257] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 164.791528][ T257] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 164.791533][ T257] __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)) [ 164.791535][ T257] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 164.791542][ T257] ? 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) [ 164.791545][ T257] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 164.791549][ T257] put_chars (drivers/char/virtio_console.c:1176) [ 164.791551][ T257] ? __send_to_port (drivers/char/virtio_console.c:654) [ 164.791553][ T257] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 164.791556][ T257] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 164.791562][ T257] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 164.791570][ T257] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 164.791574][ T257] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 164.791577][ T257] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 164.791583][ T257] console_emit_next_record (kernel/printk/printk.c:3183) [ 164.791589][ T257] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 164.791591][ T257] ? 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)) [ 164.791597][ T257] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 164.791599][ T257] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 164.791603][ T257] console_flush_one_record (kernel/printk/printk.c:3268) [ 164.791608][ T257] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 164.791610][ T257] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 164.791615][ T257] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 164.791618][ T257] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 164.791620][ T257] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 164.791622][ T257] ? 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) [ 164.791626][ T257] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 164.791627][ T257] ? vprintk_emit (kernel/printk/printk.c:2478) [ 164.791630][ T257] vprintk_emit (kernel/printk/printk.c:2479) [ 164.791633][ T257] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 164.791636][ T257] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 164.791640][ T257] _printk (kernel/printk/printk.c:2504) [ 164.791643][ T257] ? snapshot_read.cold (user.c:?) [ 164.791646][ T257] ? 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) [ 164.791649][ T257] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 164.791653][ T257] ? 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) [ 164.791656][ T257] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 164.791660][ T257] ? exit_notify (kernel/exit.c:780) [ 164.791661][ T257] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 164.791664][ T257] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 164.791668][ T257] do_group_exit (kernel/exit.c:1151) [ 164.791671][ T257] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 164.791672][ T257] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 164.791675][ T257] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 164.791679][ T257] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 164.791682][ T257] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 164.791685][ T257] RIP: 0033:0x7fe93a3ca1b8 [ 164.791687][ T257] Code: Unable to access opcode bytes at 0x7fe93a3ca18e. Code starting with the faulting instruction =========================================== [ 164.791688][ T257] RSP: 002b:00007ffd50b2f7e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 164.791691][ T257] RAX: ffffffffffffffda RBX: 00007fe93a4faf88 RCX: 00007fe93a3ca1b8 [ 164.791692][ T257] RDX: 00007fe93a307a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 164.791693][ T257] RBP: 00007ffd50b2f840 R08: 0000000000000000 R09: 0000000000000005 [ 164.791694][ T257] R10: 00007ffd50b2f680 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print