====================================== | [ 8.788822][ T144] softirqs last disabled at (13349): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.788824][ T144] Preemption disabled at: | [ 8.788825][ T144] 0x0 | [ 8.788835][ T144] Tainted: [W]=WARN [ 8.788836][ T144] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.788838][ T144] Call Trace: [ 8.788840][ T144] [ 8.788841][ T144] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.788848][ T144] __might_resched.cold (kernel/sched/core.c:9234) [ 8.788852][ T144] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.788856][ T144] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.788861][ T144] __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)) [ 8.788862][ T144] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.788869][ T144] ? 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) [ 8.788871][ T144] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.788875][ T144] put_chars (drivers/char/virtio_console.c:1176) [ 8.788877][ T144] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.788878][ T144] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.788882][ T144] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.788887][ T144] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.788894][ T144] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.788897][ T144] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.788899][ T144] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.788903][ T144] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.788907][ T144] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.788909][ T144] ? 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)) [ 8.788912][ T144] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.788913][ T144] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.788917][ T144] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.788921][ T144] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.788923][ T144] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.788928][ T144] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.788931][ T144] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.788933][ T144] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.788934][ T144] ? 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) [ 8.788938][ T144] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.788940][ T144] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.788942][ T144] vprintk_emit (kernel/printk/printk.c:2479) [ 8.788945][ T144] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.788948][ T144] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.788952][ T144] _printk (kernel/printk/printk.c:2504) [ 8.788955][ T144] ? snapshot_read.cold (user.c:?) [ 8.788958][ T144] ? 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) [ 8.788961][ T144] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.788964][ T144] ? 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) [ 8.788967][ T144] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.788971][ T144] ? exit_notify (kernel/exit.c:780) [ 8.788972][ T144] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.788975][ T144] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.788978][ T144] do_group_exit (kernel/exit.c:1151) [ 8.788981][ T144] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.788983][ T144] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.788985][ T144] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.788989][ T144] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.788992][ T144] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.788994][ T144] RIP: 0033:0x7efd0775f1b8 [ 8.788996][ T144] Code: Unable to access opcode bytes at 0x7efd0775f18e. Code starting with the faulting instruction =========================================== [ 8.788997][ T144] RSP: 002b:00007ffc310cfff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.789000][ T144] RAX: ffffffffffffffda RBX: 00007efd0788ff88 RCX: 00007efd0775f1b8 [ 8.789001][ T144] RDX: 00007efd07673e88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 8.789002][ T144] RBP: 00007ffc310d0050 R08: 00007ffc310cffa0 R09: 0000000000001010 [ 8.789003][ T144] R10: 00007ffc310cfe90 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print