====================================== | [ 9.363411][ T180] softirqs last disabled at (22019): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.363414][ T180] Preemption disabled at: | [ 9.363414][ T180] 0x0 | [ 9.363425][ T180] Tainted: [W]=WARN [ 9.363426][ T180] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.363427][ T180] Call Trace: [ 9.363429][ T180] [ 9.363430][ T180] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.363436][ T180] __might_resched.cold (kernel/sched/core.c:9234) [ 9.363440][ T180] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.363443][ T180] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.363449][ T180] __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)) [ 9.363451][ T180] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.363457][ T180] ? 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) [ 9.363460][ T180] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.363463][ T180] put_chars (drivers/char/virtio_console.c:1176) [ 9.363466][ T180] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.363472][ T180] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.363479][ T180] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.363482][ T180] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.363486][ T180] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.363490][ T180] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.363491][ T180] ? 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)) [ 9.363494][ T180] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.363497][ T180] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.363501][ T180] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.363505][ T180] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.363506][ T180] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.363515][ T180] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.363517][ T180] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.363519][ T180] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.363520][ T180] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.363524][ T180] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.363526][ T180] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.363529][ T180] vprintk_emit (kernel/printk/printk.c:2479) [ 9.363532][ T180] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.363535][ T180] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.363539][ T180] _printk (kernel/printk/printk.c:2504) [ 9.363543][ T180] ? snapshot_read.cold (user.c:?) [ 9.363545][ T180] ? 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) [ 9.363548][ T180] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.363552][ T180] ? 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) [ 9.363555][ T180] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.363559][ T180] ? exit_notify (kernel/exit.c:780) [ 9.363560][ T180] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.363563][ T180] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.363567][ T180] do_group_exit (kernel/exit.c:1151) [ 9.363570][ T180] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.363572][ T180] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.363575][ T180] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.363578][ T180] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.363582][ T180] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.363584][ T180] RIP: 0033:0x7f77e241b1b8 [ 9.363586][ T180] Code: Unable to access opcode bytes at 0x7f77e241b18e. Code starting with the faulting instruction =========================================== [ 9.363587][ T180] RSP: 002b:00007fff98299708 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.363589][ T180] RAX: ffffffffffffffda RBX: 00007f77e254bf88 RCX: 00007f77e241b1b8 [ 9.363591][ T180] RDX: 00007f77e2165fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.363591][ T180] RBP: 00007fff98299760 R08: 0000000000000000 R09: 0000000000000050 [ 9.363592][ T180] R10: 00007fff98299520 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print