====================================== | [ 10.625109][ T176] softirqs last disabled at (31883): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.625112][ T176] Preemption disabled at: | [ 10.625113][ T176] 0x0 | [ 10.625125][ T176] Tainted: [W]=WARN [ 10.625127][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.625129][ T176] Call Trace: [ 10.625131][ T176] [ 10.625133][ T176] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.625141][ T176] __might_resched.cold (kernel/sched/core.c:9234) [ 10.625148][ T176] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.625152][ T176] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.625160][ T176] __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)) [ 10.625163][ T176] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.625174][ T176] ? 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) [ 10.625178][ T176] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.625183][ T176] put_chars (drivers/char/virtio_console.c:1176) [ 10.625188][ T176] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.625199][ T176] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.625210][ T176] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.625215][ T176] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.625222][ T176] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.625228][ T176] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.625230][ T176] ? 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)) [ 10.625235][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.625240][ T176] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.625247][ T176] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.625253][ T176] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.625255][ T176] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.625265][ T176] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.625269][ T176] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.625271][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.625274][ T176] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.625281][ T176] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.625283][ T176] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.625288][ T176] vprintk_emit (kernel/printk/printk.c:2479) [ 10.625294][ T176] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.625299][ T176] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.625305][ T176] _printk (kernel/printk/printk.c:2504) [ 10.625310][ T176] ? snapshot_read.cold (user.c:?) [ 10.625314][ T176] ? 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) [ 10.625319][ T176] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.625325][ T176] ? 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) [ 10.625330][ T176] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.625335][ T176] ? exit_notify (kernel/exit.c:780) [ 10.625338][ T176] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.625342][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.625349][ T176] do_group_exit (kernel/exit.c:1151) [ 10.625354][ T176] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.625357][ T176] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.625361][ T176] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.625365][ T176] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.625370][ T176] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.625374][ T176] RIP: 0033:0x7f53029621b8 [ 10.625377][ T176] Code: Unable to access opcode bytes at 0x7f530296218e. Code starting with the faulting instruction =========================================== [ 10.625378][ T176] RSP: 002b:00007ffd9f8f48a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.625382][ T176] RAX: ffffffffffffffda RBX: 00007f5302a92f88 RCX: 00007f53029621b8 [ 10.625383][ T176] RDX: 00007f53026acfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.625385][ T176] RBP: 00007ffd9f8f4900 R08: 0000000000000000 R09: 0000000000000050 [ 10.625387][ T176] R10: 00007ffd9f8f46c0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print