====================================== | [ 68.369565][ T422] softirqs last disabled at (39039): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 68.369567][ T422] Preemption disabled at: | [ 68.369568][ T422] 0x0 | [ 68.369579][ T422] Tainted: [W]=WARN [ 68.369580][ T422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 68.369581][ T422] Call Trace: [ 68.369583][ T422] [ 68.369584][ T422] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 68.369591][ T422] __might_resched.cold (kernel/sched/core.c:9234) [ 68.369596][ T422] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 68.369601][ T422] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 68.369605][ T422] __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)) [ 68.369607][ T422] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 68.369615][ T422] ? 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) [ 68.369618][ T422] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 68.369622][ T422] put_chars (drivers/char/virtio_console.c:1176) [ 68.369625][ T422] ? __send_to_port (drivers/char/virtio_console.c:654) [ 68.369626][ T422] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 68.369630][ T422] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 68.369635][ T422] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 68.369643][ T422] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 68.369646][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 68.369648][ T422] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 68.369652][ T422] console_emit_next_record (kernel/printk/printk.c:3183) [ 68.369656][ T422] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 68.369658][ T422] ? 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)) [ 68.369661][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 68.369663][ T422] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 68.369667][ T422] console_flush_one_record (kernel/printk/printk.c:3268) [ 68.369671][ T422] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 68.369673][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 68.369678][ T422] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 68.369681][ T422] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 68.369683][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 68.369685][ T422] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 68.369688][ T422] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 68.369690][ T422] ? vprintk_emit (kernel/printk/printk.c:2478) [ 68.369693][ T422] vprintk_emit (kernel/printk/printk.c:2479) [ 68.369696][ T422] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 68.369699][ T422] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 68.369703][ T422] _printk (kernel/printk/printk.c:2504) [ 68.369707][ T422] ? snapshot_read.cold (user.c:?) [ 68.369710][ T422] ? 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) [ 68.369712][ T422] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 68.369716][ T422] ? 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) [ 68.369719][ T422] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 68.369723][ T422] ? exit_notify (kernel/exit.c:780) [ 68.369724][ T422] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 68.369727][ T422] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 68.369731][ T422] do_group_exit (kernel/exit.c:1151) [ 68.369734][ T422] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 68.369736][ T422] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 68.369738][ T422] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 68.369742][ T422] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 68.369745][ T422] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 68.369747][ T422] RIP: 0033:0x7f1cc29e21b8 [ 68.369750][ T422] Code: Unable to access opcode bytes at 0x7f1cc29e218e. Code starting with the faulting instruction =========================================== [ 68.369751][ T422] RSP: 002b:00007ffe7b55e538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 68.369753][ T422] RAX: ffffffffffffffda RBX: 00007f1cc2b12f88 RCX: 00007f1cc29e21b8 [ 68.369755][ T422] RDX: 00007f1cc2920e88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 68.369756][ T422] RBP: 00007ffe7b55e590 R08: 0000000000000000 R09: 0000000000000004 [ 68.369757][ T422] R10: 00007ffe7b55e3d0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print