====================================== | [ 12.114410][ T220] softirqs last disabled at (70221): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.114412][ T220] Preemption disabled at: | [ 12.114413][ T220] 0x0 | [ 12.114423][ T220] Tainted: [W]=WARN [ 12.114424][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.114425][ T220] Call Trace: [ 12.114427][ T220] [ 12.114428][ T220] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.114434][ T220] __might_resched.cold (kernel/sched/core.c:9234) [ 12.114439][ T220] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.114443][ 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) [ 12.114448][ 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)) [ 12.114450][ T220] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.114457][ 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) [ 12.114460][ T220] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.114463][ T220] put_chars (drivers/char/virtio_console.c:1176) [ 12.114466][ T220] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.114468][ T220] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 12.114472][ T220] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.114475][ T220] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.114478][ T220] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.114482][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.114484][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.114488][ T220] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.114491][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.114495][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.114498][ T220] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.114502][ T220] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.114506][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.114509][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.114512][ T220] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.114516][ T220] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.114518][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.114523][ T220] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.114526][ T220] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.114527][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.114530][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 12.114533][ T220] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.114535][ T220] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.114538][ T220] vprintk_emit (kernel/printk/printk.c:2479) [ 12.114542][ T220] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.114545][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.114549][ T220] _printk (kernel/printk/printk.c:2504) [ 12.114552][ T220] ? snapshot_read.cold (user.c:?) [ 12.114555][ 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) [ 12.114557][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.114561][ 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) [ 12.114563][ T220] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.114567][ T220] ? exit_notify (kernel/exit.c:780) [ 12.114569][ T220] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.114571][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.114575][ T220] do_group_exit (kernel/exit.c:1151) [ 12.114578][ T220] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.114580][ T220] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.114582][ T220] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.114586][ T220] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.114589][ T220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.114591][ T220] RIP: 0033:0x7ff0f91171b8 [ 12.114593][ T220] Code: Unable to access opcode bytes at 0x7ff0f911718e. Code starting with the faulting instruction =========================================== [ 12.114594][ T220] RSP: 002b:00007ffd5d6676e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.114597][ T220] RAX: ffffffffffffffda RBX: 00007ff0f9247f88 RCX: 00007ff0f91171b8 [ 12.114598][ T220] RDX: 00007ff0f8e61fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.114599][ T220] RBP: 00007ffd5d667740 R08: 0000000000000000 R09: 0000000000000020 [ 12.114600][ T220] R10: 00007ffd5d667500 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print