====================================== | [ 9.975529][ T181] softirqs last disabled at (29905): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.975531][ T181] Preemption disabled at: | [ 9.975532][ T181] 0x0 | [ 9.975542][ T181] Tainted: [W]=WARN [ 9.975543][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.975545][ T181] Call Trace: [ 9.975546][ T181] [ 9.975548][ T181] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.975554][ T181] __might_resched.cold (kernel/sched/core.c:9234) [ 9.975559][ T181] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.975564][ T181] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.975570][ T181] __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)) [ 9.975572][ T181] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.975578][ T181] ? 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) [ 9.975581][ T181] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.975584][ T181] put_chars (drivers/char/virtio_console.c:1176) [ 9.975587][ T181] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.975594][ T181] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.975601][ T181] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.975603][ T181] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.975608][ T181] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.975612][ T181] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.975613][ T181] ? 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)) [ 9.975616][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.975619][ T181] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.975626][ T181] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.975629][ T181] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.975631][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.975636][ T181] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.975638][ T181] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.975640][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.975642][ T181] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.975645][ T181] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.975647][ T181] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.975650][ T181] vprintk_emit (kernel/printk/printk.c:2479) [ 9.975653][ T181] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.975656][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.975660][ T181] _printk (kernel/printk/printk.c:2504) [ 9.975664][ T181] ? snapshot_read.cold (user.c:?) [ 9.975667][ T181] ? 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) [ 9.975670][ T181] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.975674][ T181] ? 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) [ 9.975677][ T181] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.975680][ T181] ? exit_notify (kernel/exit.c:780) [ 9.975682][ T181] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.975685][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.975689][ T181] do_group_exit (kernel/exit.c:1151) [ 9.975692][ T181] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.975694][ T181] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.975696][ T181] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.975700][ T181] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.975704][ T181] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.975706][ T181] RIP: 0033:0x7f52413541b8 [ 9.975708][ T181] Code: Unable to access opcode bytes at 0x7f524135418e. Code starting with the faulting instruction =========================================== [ 9.975709][ T181] RSP: 002b:00007ffcaade4428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.975712][ T181] RAX: ffffffffffffffda RBX: 00007f5241484f88 RCX: 00007f52413541b8 [ 9.975713][ T181] RDX: 00007f524109efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.975714][ T181] RBP: 00007ffcaade4480 R08: 0000000000000000 R09: 0000000000000050 [ 9.975715][ T181] R10: 00007ffcaade4240 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print