====================================== | [ 10.838367][ T220] softirqs last disabled at (4154291): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.838369][ T220] Preemption disabled at: | [ 10.838370][ T220] 0x0 | [ 10.838380][ T220] Tainted: [W]=WARN [ 10.838381][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.838382][ T220] Call Trace: [ 10.838384][ T220] [ 10.838385][ T220] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.838391][ T220] __might_resched.cold (kernel/sched/core.c:9234) [ 10.838395][ T220] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.838398][ T220] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.838404][ T220] __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)) [ 10.838406][ T220] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.838412][ T220] ? 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) [ 10.838415][ T220] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.838418][ T220] put_chars (drivers/char/virtio_console.c:1176) [ 10.838421][ T220] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.838423][ T220] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.838427][ T220] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.838432][ T220] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.838438][ T220] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.838441][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.838443][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.838446][ T220] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.838450][ T220] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.838451][ T220] ? 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)) [ 10.838454][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.838455][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.838459][ T220] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.838463][ T220] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.838464][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.838469][ T220] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.838471][ T220] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.838472][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.838474][ T220] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.838478][ T220] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.838480][ T220] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.838482][ T220] vprintk_emit (kernel/printk/printk.c:2479) [ 10.838485][ T220] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.838487][ T220] ? 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) [ 10.838490][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.838493][ T220] _printk (kernel/printk/printk.c:2504) [ 10.838497][ T220] ? snapshot_read.cold (user.c:?) [ 10.838500][ T220] ? 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) [ 10.838502][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.838506][ T220] ? 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) [ 10.838509][ T220] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.838512][ T220] ? exit_notify (kernel/exit.c:780) [ 10.838514][ T220] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.838516][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.838520][ T220] do_group_exit (kernel/exit.c:1151) [ 10.838523][ T220] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.838525][ T220] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.838528][ T220] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.838531][ T220] ? irq_exit_rcu (kernel/softirq.c:786) [ 10.838534][ T220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.838536][ T220] RIP: 0033:0x479678 [ 10.838538][ T220] Code: Unable to access opcode bytes at 0x47964e. Code starting with the faulting instruction =========================================== [ 10.838539][ T220] RSP: 002b:00007ffc26358298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.838541][ T220] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.838543][ T220] RDX: 000000000eec6708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.838544][ T220] RBP: 00007ffc263582f0 R08: 0000000000000000 R09: 000000000eec73e0 [ 10.838544][ T220] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc26358428 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print