====================================== | [ 9.291706][ T199] softirqs last disabled at (45193): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.291708][ T199] Preemption disabled at: | [ 9.291709][ T199] 0x0 | [ 9.291718][ T199] Tainted: [W]=WARN [ 9.291719][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.291720][ T199] Call Trace: [ 9.291722][ T199] [ 9.291723][ T199] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.291729][ T199] __might_resched.cold (kernel/sched/core.c:9234) [ 9.291733][ T199] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.291738][ T199] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.291742][ T199] __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)) [ 9.291744][ T199] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.291751][ T199] ? 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) [ 9.291753][ T199] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.291757][ T199] put_chars (drivers/char/virtio_console.c:1176) [ 9.291759][ T199] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.291760][ T199] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.291764][ T199] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.291769][ T199] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.291776][ T199] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.291779][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.291781][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.291785][ T199] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.291789][ T199] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.291791][ T199] ? 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)) [ 9.291794][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.291795][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.291799][ T199] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.291803][ T199] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.291805][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.291810][ T199] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.291813][ T199] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.291815][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.291816][ T199] ? 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) [ 9.291820][ T199] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.291822][ T199] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.291824][ T199] vprintk_emit (kernel/printk/printk.c:2479) [ 9.291827][ T199] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.291830][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.291834][ T199] _printk (kernel/printk/printk.c:2504) [ 9.291837][ T199] ? snapshot_read.cold (user.c:?) [ 9.291840][ T199] ? 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) [ 9.291843][ T199] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.291847][ T199] ? 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) [ 9.291849][ T199] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.291853][ T199] ? exit_notify (kernel/exit.c:780) [ 9.291854][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.291857][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.291860][ T199] do_group_exit (kernel/exit.c:1151) [ 9.291863][ T199] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.291865][ T199] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.291867][ T199] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.291871][ T199] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.291874][ T199] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.291876][ T199] RIP: 0033:0x7fbaca97c1b8 [ 9.291878][ T199] Code: Unable to access opcode bytes at 0x7fbaca97c18e. Code starting with the faulting instruction =========================================== [ 9.291879][ T199] RSP: 002b:00007ffec8fa6ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.291881][ T199] RAX: ffffffffffffffda RBX: 00007fbacaaacf88 RCX: 00007fbaca97c1b8 [ 9.291883][ T199] RDX: 00007fbaca6c7588 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.291883][ T199] RBP: 00007ffec8fa6f20 R08: 0000000000000000 R09: 0000000000000000 [ 9.291884][ T199] R10: 00007ffec8fa6cc0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print