====================================== | [ 8.116575][ T125] softirqs last disabled at (107203): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.116578][ T125] Preemption disabled at: | [ 8.116578][ T125] 0x0 | [ 8.116589][ T125] Tainted: [W]=WARN [ 8.116590][ T125] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.116592][ T125] Call Trace: [ 8.116593][ T125] [ 8.116595][ T125] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.116600][ T125] __might_resched.cold (kernel/sched/core.c:9234) [ 8.116605][ T125] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.116608][ T125] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.116613][ T125] __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)) [ 8.116615][ T125] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.116622][ T125] ? 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) [ 8.116625][ T125] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.116629][ T125] put_chars (drivers/char/virtio_console.c:1176) [ 8.116631][ T125] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.116638][ T125] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.116645][ T125] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.116648][ T125] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.116652][ T125] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.116656][ T125] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.116657][ T125] ? 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)) [ 8.116659][ T125] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.116663][ T125] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.116667][ T125] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.116671][ T125] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.116672][ T125] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.116678][ T125] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.116680][ T125] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.116681][ T125] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.116683][ T125] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.116687][ T125] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.116689][ T125] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.116692][ T125] vprintk_emit (kernel/printk/printk.c:2479) [ 8.116695][ T125] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.116698][ T125] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.116702][ T125] _printk (kernel/printk/printk.c:2504) [ 8.116705][ T125] ? snapshot_read.cold (user.c:?) [ 8.116708][ T125] ? 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) [ 8.116711][ T125] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.116715][ T125] ? 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) [ 8.116718][ T125] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.116722][ T125] ? exit_notify (kernel/exit.c:780) [ 8.116723][ T125] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.116726][ T125] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.116730][ T125] do_group_exit (kernel/exit.c:1151) [ 8.116733][ T125] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.116735][ T125] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.116738][ T125] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.116742][ T125] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.116745][ T125] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.116747][ T125] RIP: 0033:0x7f2ff81dc1b8 [ 8.116749][ T125] Code: Unable to access opcode bytes at 0x7f2ff81dc18e. Code starting with the faulting instruction =========================================== [ 8.116750][ T125] RSP: 002b:00007fff56dbb978 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.116753][ T125] RAX: ffffffffffffffda RBX: 00007f2ff830cf88 RCX: 00007f2ff81dc1b8 [ 8.116754][ T125] RDX: 00007f2ff7217b08 RSI: ffffffffffffff98 RDI: 0000000000000000 [ 8.116755][ T125] RBP: 00007fff56dbb9d0 R08: 0000000000000000 R09: 00000000000000a0 [ 8.116756][ T125] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000b Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print