====================================== | [ 9.026769][ T135] softirqs last disabled at (82721): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.026772][ T135] Preemption disabled at: | [ 9.026773][ T135] 0x0 | [ 9.026787][ T135] Tainted: [W]=WARN [ 9.026788][ T135] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.026791][ T135] Call Trace: [ 9.026793][ T135] [ 9.026795][ T135] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.026803][ T135] __might_resched.cold (kernel/sched/core.c:9234) [ 9.026809][ T135] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.026814][ T135] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.026821][ T135] __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)) [ 9.026824][ T135] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.026833][ T135] ? 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) [ 9.026837][ T135] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.026843][ T135] put_chars (drivers/char/virtio_console.c:1176) [ 9.026847][ T135] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.026859][ T135] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.026871][ T135] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.026875][ T135] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.026882][ T135] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.026888][ T135] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.026890][ T135] ? 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)) [ 9.026895][ T135] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.026899][ T135] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.026906][ T135] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.026913][ T135] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.026915][ T135] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.026924][ T135] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.026928][ T135] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.026929][ T135] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.026933][ T135] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.026939][ T135] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.026942][ T135] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.026948][ T135] vprintk_emit (kernel/printk/printk.c:2479) [ 9.026953][ T135] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.026958][ T135] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.026965][ T135] _printk (kernel/printk/printk.c:2504) [ 9.026969][ T135] ? snapshot_read.cold (user.c:?) [ 9.026974][ T135] ? 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) [ 9.026978][ T135] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.026985][ T135] ? 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) [ 9.026989][ T135] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.026994][ T135] ? exit_notify (kernel/exit.c:780) [ 9.026997][ T135] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.027001][ T135] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.027007][ T135] do_group_exit (kernel/exit.c:1151) [ 9.027012][ T135] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.027015][ T135] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.027019][ T135] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.027022][ T135] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.027027][ T135] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.027030][ T135] RIP: 0033:0x7f66a62401b8 [ 9.027033][ T135] Code: Unable to access opcode bytes at 0x7f66a624018e. Code starting with the faulting instruction =========================================== [ 9.027035][ T135] RSP: 002b:00007fff46210998 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.027038][ T135] RAX: ffffffffffffffda RBX: 00007f66a6370f88 RCX: 00007f66a62401b8 [ 9.027040][ T135] RDX: 00007f66a527bb08 RSI: ffffffffffffff98 RDI: 0000000000000000 [ 9.027041][ T135] RBP: 00007fff462109f0 R08: 0000000000000000 R09: 00000000000000a0 [ 9.027043][ T135] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000b Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print