====================================== | [ 33.444848][ T155] softirqs last disabled at (75279): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 33.444850][ T155] Preemption disabled at: | [ 33.444851][ T155] 0x0 | [ 33.444862][ T155] Tainted: [W]=WARN [ 33.444863][ T155] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.444864][ T155] Call Trace: [ 33.444866][ T155] [ 33.444868][ T155] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.444873][ T155] __might_resched.cold (kernel/sched/core.c:9234) [ 33.444878][ T155] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.444881][ T155] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 33.444886][ T155] __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)) [ 33.444892][ T155] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.444898][ T155] ? 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) [ 33.444901][ T155] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.444905][ T155] put_chars (drivers/char/virtio_console.c:1176) [ 33.444908][ T155] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.444909][ T155] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.444913][ T155] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.444919][ T155] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.444926][ T155] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.444928][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.444930][ T155] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.444935][ T155] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.444938][ T155] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.444939][ T155] ? 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)) [ 33.444942][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.444944][ T155] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.444948][ T155] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.444952][ T155] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.444953][ T155] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.444959][ T155] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.444961][ T155] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.444963][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.444965][ T155] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 33.444969][ T155] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.444971][ T155] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.444974][ T155] vprintk_emit (kernel/printk/printk.c:2479) [ 33.444977][ T155] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.444980][ T155] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.444984][ T155] _printk (kernel/printk/printk.c:2504) [ 33.444988][ T155] ? snapshot_read.cold (user.c:?) [ 33.444991][ T155] ? 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) [ 33.444993][ T155] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 33.444997][ T155] ? 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) [ 33.445000][ T155] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 33.445004][ T155] ? exit_notify (kernel/exit.c:780) [ 33.445005][ T155] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 33.445008][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.445012][ T155] do_group_exit (kernel/exit.c:1151) [ 33.445015][ T155] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 33.445017][ T155] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 33.445020][ T155] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 33.445024][ T155] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 33.445027][ T155] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 33.445030][ T155] RIP: 0033:0x7f7a385be1b8 [ 33.445032][ T155] Code: Unable to access opcode bytes at 0x7f7a385be18e. Code starting with the faulting instruction =========================================== [ 33.445033][ T155] RSP: 002b:00007ffeb1f109e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 33.445035][ T155] RAX: ffffffffffffffda RBX: 00007f7a386eef88 RCX: 00007f7a385be1b8 [ 33.445037][ T155] RDX: 00007f7a383accc8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 33.445038][ T155] RBP: 00007ffeb1f10a40 R08: 0000000000000000 R09: 0000000000000050 [ 33.445038][ T155] R10: 00007ffeb1f10840 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print