====================================== | [ 31.861379][ T168] softirqs last disabled at (12001935): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 31.861381][ T168] Preemption disabled at: | [ 31.861381][ T168] 0x0 | [ 31.861391][ T168] Tainted: [W]=WARN [ 31.861392][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.861394][ T168] Call Trace: [ 31.861396][ T168] [ 31.861397][ T168] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.861403][ T168] __might_resched.cold (kernel/sched/core.c:9234) [ 31.861407][ T168] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.861411][ T168] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.861416][ T168] __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)) [ 31.861419][ T168] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.861425][ T168] ? 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) [ 31.861428][ T168] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.861431][ T168] put_chars (drivers/char/virtio_console.c:1176) [ 31.861434][ T168] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.861436][ T168] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.861441][ T168] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.861446][ T168] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.861452][ T168] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.861454][ T168] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.861457][ T168] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.861461][ T168] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.861465][ T168] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.861466][ T168] ? 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)) [ 31.861470][ T168] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.861472][ T168] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.861476][ T168] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.861480][ T168] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.861482][ T168] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.861487][ T168] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.861490][ T168] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.861491][ T168] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.861494][ T168] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 31.861497][ T168] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.861499][ T168] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.861502][ T168] vprintk_emit (kernel/printk/printk.c:2479) [ 31.861506][ T168] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.861509][ T168] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.861513][ T168] _printk (kernel/printk/printk.c:2504) [ 31.861516][ T168] ? snapshot_read.cold (user.c:?) [ 31.861519][ T168] ? 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) [ 31.861522][ T168] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 31.861525][ T168] ? 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) [ 31.861528][ T168] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 31.861532][ T168] ? exit_notify (kernel/exit.c:780) [ 31.861533][ T168] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.861536][ T168] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.861540][ T168] do_group_exit (kernel/exit.c:1151) [ 31.861542][ T168] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 31.861544][ T168] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 31.861547][ T168] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.861551][ T168] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.861554][ T168] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.861556][ T168] RIP: 0033:0x7f75860dc1b8 [ 31.861558][ T168] Code: Unable to access opcode bytes at 0x7f75860dc18e. Code starting with the faulting instruction =========================================== [ 31.861559][ T168] RSP: 002b:00007ffd821a88f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 31.861562][ T168] RAX: ffffffffffffffda RBX: 00007f758620cf88 RCX: 00007f75860dc1b8 [ 31.861563][ T168] RDX: 00007f758601aec8 RSI: ffffffffffffff90 RDI: 0000000000000000 [ 31.861564][ T168] RBP: 00007ffd821a8950 R08: 0000000000000000 R09: 0000000000000000 [ 31.861565][ T168] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000415de0 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print