====================================== | [ 12.667945][ T264] softirqs last disabled at (31207): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.667947][ T264] Preemption disabled at: | [ 12.667948][ T264] 0x0 | [ 12.667959][ T264] Tainted: [W]=WARN [ 12.667960][ T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.667962][ T264] Call Trace: [ 12.667964][ T264] [ 12.667968][ T264] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.667974][ T264] __might_resched.cold (kernel/sched/core.c:9234) [ 12.667979][ T264] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.667983][ T264] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.667987][ T264] __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)) [ 12.667989][ T264] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.667997][ T264] ? 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) [ 12.668000][ T264] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.668003][ T264] put_chars (drivers/char/virtio_console.c:1176) [ 12.668006][ T264] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.668007][ T264] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.668011][ T264] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.668016][ T264] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.668023][ T264] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.668026][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.668028][ T264] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.668032][ T264] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.668036][ T264] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.668038][ T264] ? 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)) [ 12.668041][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.668043][ T264] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.668047][ T264] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.668052][ T264] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.668053][ T264] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.668059][ T264] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.668062][ T264] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.668064][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.668065][ T264] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 12.668069][ T264] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.668071][ T264] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.668074][ T264] vprintk_emit (kernel/printk/printk.c:2479) [ 12.668077][ T264] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.668080][ T264] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.668084][ T264] _printk (kernel/printk/printk.c:2504) [ 12.668087][ T264] ? snapshot_read.cold (user.c:?) [ 12.668090][ T264] ? 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) [ 12.668093][ T264] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.668097][ T264] ? 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) [ 12.668099][ T264] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.668103][ T264] ? exit_notify (kernel/exit.c:780) [ 12.668105][ T264] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.668107][ T264] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.668111][ T264] do_group_exit (kernel/exit.c:1151) [ 12.668114][ T264] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.668116][ T264] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.668118][ T264] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.668123][ T264] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.668126][ T264] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.668128][ T264] RIP: 0033:0x7f5bad2411b8 [ 12.668130][ T264] Code: Unable to access opcode bytes at 0x7f5bad24118e. Code starting with the faulting instruction =========================================== [ 12.668131][ T264] RSP: 002b:00007ffcf8d61e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.668134][ T264] RAX: ffffffffffffffda RBX: 00007f5bad371f88 RCX: 00007f5bad2411b8 [ 12.668135][ T264] RDX: 00007f5bacf8bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.668136][ T264] RBP: 00007ffcf8d61ef0 R08: 0000000000000000 R09: 0000000000000050 [ 12.668137][ T264] R10: 00007ffcf8d61cb0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print