====================================== | [ 16.399763][ T208] softirqs last disabled at (2390055): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 16.399766][ T208] Preemption disabled at: | [ 16.399766][ T208] 0x0 | [ 16.399777][ T208] Tainted: [W]=WARN [ 16.399778][ T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.399780][ T208] Call Trace: [ 16.399781][ T208] [ 16.399783][ T208] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.399788][ T208] __might_resched.cold (kernel/sched/core.c:9234) [ 16.399793][ T208] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.399796][ T208] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.399802][ T208] __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)) [ 16.399805][ T208] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.399812][ T208] ? 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) [ 16.399815][ T208] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.399819][ T208] put_chars (drivers/char/virtio_console.c:1176) [ 16.399822][ T208] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.399824][ T208] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.399828][ T208] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.399835][ T208] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.399843][ T208] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.399846][ T208] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.399848][ T208] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.399854][ T208] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.399858][ T208] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.399860][ T208] ? 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)) [ 16.399863][ T208] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.399865][ T208] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.399870][ T208] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.399875][ T208] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.399876][ T208] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.399884][ T208] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.399886][ T208] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.399888][ T208] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.399890][ T208] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 16.399894][ T208] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.399896][ T208] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.399899][ T208] vprintk_emit (kernel/printk/printk.c:2479) [ 16.399903][ T208] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.399906][ T208] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.399910][ T208] _printk (kernel/printk/printk.c:2504) [ 16.399914][ T208] ? snapshot_read.cold (user.c:?) [ 16.399917][ T208] ? 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) [ 16.399920][ T208] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.399925][ T208] ? 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) [ 16.399928][ T208] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 16.399932][ T208] ? exit_notify (kernel/exit.c:780) [ 16.399933][ T208] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.399937][ T208] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.399941][ T208] do_group_exit (kernel/exit.c:1151) [ 16.399945][ T208] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 16.399947][ T208] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 16.399950][ T208] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.399954][ T208] ? irq_exit_rcu (kernel/softirq.c:786) [ 16.399957][ T208] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.399959][ T208] RIP: 0033:0x479678 [ 16.399962][ T208] Code: Unable to access opcode bytes at 0x47964e. Code starting with the faulting instruction =========================================== [ 16.399963][ T208] RSP: 002b:00007ffea6debde8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 16.399966][ T208] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 16.399967][ T208] RDX: 0000000012ae9708 RSI: fffffffffffffff0 RDI: 0000000000000001 [ 16.399968][ T208] RBP: 00007ffea6debe40 R08: 0000000000000000 R09: 0000000012aea3e0 [ 16.399969][ T208] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffea6dec3e8 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print