====================================== | [ 8.382989][ T170] softirqs last disabled at (15389): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.382991][ T170] Preemption disabled at: | [ 8.382992][ T170] 0x0 | [ 8.383002][ T170] Tainted: [W]=WARN [ 8.383003][ T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.383005][ T170] Call Trace: [ 8.383006][ T170] [ 8.383008][ T170] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.383014][ T170] __might_resched.cold (kernel/sched/core.c:9234) [ 8.383018][ T170] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.383022][ T170] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.383026][ T170] __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)) [ 8.383028][ T170] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.383034][ T170] ? 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) [ 8.383036][ T170] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.383039][ T170] put_chars (drivers/char/virtio_console.c:1176) [ 8.383042][ T170] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.383043][ T170] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 8.383046][ T170] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.383049][ T170] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.383053][ T170] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.383056][ T170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.383057][ T170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.383061][ T170] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.383064][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.383067][ T170] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.383071][ T170] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.383074][ T170] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.383078][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.383080][ T170] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.383084][ T170] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.383088][ T170] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.383089][ T170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.383094][ T170] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.383096][ T170] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.383098][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.383100][ T170] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.383103][ T170] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.383104][ T170] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.383107][ T170] vprintk_emit (kernel/printk/printk.c:2479) [ 8.383111][ T170] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.383114][ T170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.383117][ T170] _printk (kernel/printk/printk.c:2504) [ 8.383121][ T170] ? snapshot_read.cold (user.c:?) [ 8.383123][ T170] ? 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) [ 8.383126][ T170] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.383129][ T170] ? 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) [ 8.383131][ T170] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.383135][ T170] ? exit_notify (kernel/exit.c:780) [ 8.383137][ T170] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.383139][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.383143][ T170] do_group_exit (kernel/exit.c:1151) [ 8.383146][ T170] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.383148][ T170] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.383151][ T170] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.383154][ T170] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.383157][ T170] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.383159][ T170] RIP: 0033:0x7f1efdc901b8 [ 8.383162][ T170] Code: Unable to access opcode bytes at 0x7f1efdc9018e. Code starting with the faulting instruction =========================================== [ 8.383163][ T170] RSP: 002b:00007ffff2cdcfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.383165][ T170] RAX: ffffffffffffffda RBX: 00007f1efddc0f88 RCX: 00007f1efdc901b8 [ 8.383166][ T170] RDX: 00007f1efdaedb48 RSI: fffffffffffffec8 RDI: 0000000000000000 [ 8.383167][ T170] RBP: 00007ffff2cdd040 R08: 0000000000000000 R09: 0000000000001010 [ 8.383168][ T170] R10: 00007ffff2cdce40 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print