====================================== | [ 10.557002][ T199] softirqs last disabled at (4269123): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.557004][ T199] Preemption disabled at: | [ 10.557005][ T199] 0x0 | [ 10.557015][ T199] Tainted: [W]=WARN [ 10.557016][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.557017][ T199] Call Trace: [ 10.557019][ T199] [ 10.557021][ T199] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.557027][ T199] __might_resched.cold (kernel/sched/core.c:9234) [ 10.557031][ T199] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.557034][ T199] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.557039][ T199] __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)) [ 10.557041][ T199] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.557047][ T199] ? 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) [ 10.557050][ T199] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.557053][ T199] put_chars (drivers/char/virtio_console.c:1176) [ 10.557056][ T199] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.557058][ T199] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.557062][ T199] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.557067][ T199] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.557074][ T199] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.557076][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557078][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.557082][ T199] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.557086][ T199] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.557087][ T199] ? 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)) [ 10.557089][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557091][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.557095][ T199] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.557098][ T199] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.557100][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.557105][ T199] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.557107][ T199] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.557108][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557110][ T199] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.557114][ T199] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.557115][ T199] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.557118][ T199] vprintk_emit (kernel/printk/printk.c:2479) [ 10.557121][ T199] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.557124][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.557128][ T199] _printk (kernel/printk/printk.c:2504) [ 10.557131][ T199] ? snapshot_read.cold (user.c:?) [ 10.557134][ T199] ? 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) [ 10.557137][ T199] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.557140][ T199] ? 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) [ 10.557143][ T199] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.557147][ T199] ? exit_notify (kernel/exit.c:780) [ 10.557148][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.557151][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557154][ T199] do_group_exit (kernel/exit.c:1151) [ 10.557157][ T199] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.557159][ T199] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.557162][ T199] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.557166][ T199] ? irq_exit_rcu (kernel/softirq.c:786) [ 10.557168][ T199] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.557171][ T199] RIP: 0033:0x479678 [ 10.557173][ T199] Code: Unable to access opcode bytes at 0x47964e. Code starting with the faulting instruction =========================================== [ 10.557174][ T199] RSP: 002b:00007fff2303f018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.557176][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.557178][ T199] RDX: 0000000013cf9708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.557179][ T199] RBP: 00007fff2303f070 R08: 0000000000000000 R09: 0000000013cfa3e0 [ 10.557179][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff2303f1a8 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print