====================================== | [ 8.363817][ T126] softirqs last disabled at (18005): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.363820][ T126] Preemption disabled at: | [ 8.363821][ T126] 0x0 | [ 8.363830][ T126] Tainted: [W]=WARN [ 8.363831][ T126] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.363833][ T126] Call Trace: [ 8.363835][ T126] [ 8.363836][ T126] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.363842][ T126] __might_resched.cold (kernel/sched/core.c:9234) [ 8.363846][ T126] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.363849][ T126] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.363855][ T126] __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)) [ 8.363857][ T126] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.363864][ T126] ? 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) [ 8.363867][ T126] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.363870][ T126] put_chars (drivers/char/virtio_console.c:1176) [ 8.363873][ T126] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.363875][ T126] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.363879][ T126] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.363885][ T126] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.363891][ T126] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.363894][ T126] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.363896][ T126] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.363900][ T126] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.363904][ T126] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.363905][ T126] ? 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)) [ 8.363907][ T126] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.363909][ T126] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.363913][ T126] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.363917][ T126] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.363918][ T126] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.363924][ T126] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.363926][ T126] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.363927][ T126] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.363929][ T126] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.363933][ T126] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.363935][ T126] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.363938][ T126] vprintk_emit (kernel/printk/printk.c:2479) [ 8.363941][ T126] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.363944][ T126] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.363948][ T126] _printk (kernel/printk/printk.c:2504) [ 8.363952][ T126] ? snapshot_read.cold (user.c:?) [ 8.363955][ T126] ? 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) [ 8.363957][ T126] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.363961][ T126] ? 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) [ 8.363964][ T126] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.363968][ T126] ? exit_notify (kernel/exit.c:780) [ 8.363970][ T126] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.363972][ T126] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.363976][ T126] do_group_exit (kernel/exit.c:1151) [ 8.363979][ T126] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.363981][ T126] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.363984][ T126] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.363988][ T126] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.363991][ T126] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.363993][ T126] RIP: 0033:0x7f43146e51b8 [ 8.363996][ T126] Code: Unable to access opcode bytes at 0x7f43146e518e. Code starting with the faulting instruction =========================================== [ 8.363997][ T126] RSP: 002b:00007ffee1ce1538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.363999][ T126] RAX: ffffffffffffffda RBX: 00007f4314815f88 RCX: 00007f43146e51b8 [ 8.364001][ T126] RDX: 00007f4314620a88 RSI: ffffffffffffffa8 RDI: 0000000000000001 [ 8.364001][ T126] RBP: 00007ffee1ce1590 R08: 0000000000000000 R09: 00000000000000a0 [ 8.364002][ T126] R10: 00007ffee1ce1390 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print