====================================== | [ 8.669197][ T178] softirqs last disabled at (52631): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.669199][ T178] Preemption disabled at: | [ 8.669200][ T178] 0x0 | [ 8.669209][ T178] Tainted: [W]=WARN [ 8.669210][ T178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.669212][ T178] Call Trace: [ 8.669213][ T178] [ 8.669215][ T178] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.669221][ T178] __might_resched.cold (kernel/sched/core.c:9234) [ 8.669225][ T178] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.669229][ T178] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.669234][ T178] __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)) [ 8.669236][ T178] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.669241][ T178] ? 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) [ 8.669244][ T178] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.669247][ T178] put_chars (drivers/char/virtio_console.c:1176) [ 8.669249][ T178] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.669251][ T178] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 8.669254][ T178] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.669257][ T178] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.669261][ T178] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.669263][ T178] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.669265][ T178] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.669269][ T178] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.669272][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.669274][ T178] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.669278][ T178] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.669281][ T178] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.669285][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.669287][ T178] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.669291][ T178] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.669295][ T178] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.669296][ T178] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.669301][ T178] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.669304][ T178] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.669305][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.669307][ T178] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.669311][ T178] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.669312][ T178] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.669315][ T178] vprintk_emit (kernel/printk/printk.c:2479) [ 8.669319][ T178] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.669322][ T178] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.669325][ T178] _printk (kernel/printk/printk.c:2504) [ 8.669329][ T178] ? snapshot_read.cold (user.c:?) [ 8.669331][ T178] ? 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) [ 8.669334][ T178] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.669337][ T178] ? 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) [ 8.669339][ T178] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.669343][ T178] ? exit_notify (kernel/exit.c:780) [ 8.669345][ T178] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.669348][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.669352][ T178] do_group_exit (kernel/exit.c:1151) [ 8.669355][ T178] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.669357][ T178] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.669359][ T178] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.669363][ T178] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.669366][ T178] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.669369][ T178] RIP: 0033:0x7f9ee1cbd1b8 [ 8.669371][ T178] Code: Unable to access opcode bytes at 0x7f9ee1cbd18e. Code starting with the faulting instruction =========================================== [ 8.669372][ T178] RSP: 002b:00007fff6c9bea08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.669374][ T178] RAX: ffffffffffffffda RBX: 00007f9ee1dedf88 RCX: 00007f9ee1cbd1b8 [ 8.669375][ T178] RDX: 00007f9ee1bfbec8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 8.669376][ T178] RBP: 00007fff6c9bea60 R08: 0000000000000000 R09: 00000000000000a0 [ 8.669377][ T178] R10: 00007fff6c9be860 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print