====================================== | [ 8.757678][ T181] softirqs last disabled at (28003): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.757681][ T181] Preemption disabled at: | [ 8.757681][ T181] 0x0 | [ 8.757691][ T181] Tainted: [W]=WARN [ 8.757692][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.757693][ T181] Call Trace: [ 8.757695][ T181] [ 8.757696][ T181] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.757702][ T181] __might_resched.cold (kernel/sched/core.c:9234) [ 8.757707][ T181] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.757710][ T181] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.757715][ T181] __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)) [ 8.757718][ T181] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.757725][ T181] ? 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) [ 8.757727][ T181] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.757730][ T181] put_chars (drivers/char/virtio_console.c:1176) [ 8.757734][ T181] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.757736][ T181] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 8.757739][ T181] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.757743][ T181] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.757747][ T181] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.757751][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757753][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757758][ T181] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.757761][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757764][ T181] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.757768][ T181] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.757771][ T181] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.757775][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757777][ T181] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.757781][ T181] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.757785][ T181] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.757786][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757792][ T181] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.757794][ T181] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.757796][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757797][ T181] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.757801][ T181] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.757803][ T181] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.757806][ T181] vprintk_emit (kernel/printk/printk.c:2479) [ 8.757810][ T181] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.757813][ T181] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.757816][ T181] _printk (kernel/printk/printk.c:2504) [ 8.757820][ T181] ? snapshot_read.cold (user.c:?) [ 8.757823][ T181] ? 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) [ 8.757825][ T181] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.757828][ T181] ? 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) [ 8.757835][ T181] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.757839][ T181] ? exit_notify (kernel/exit.c:780) [ 8.757841][ T181] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.757844][ T181] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.757847][ T181] do_group_exit (kernel/exit.c:1151) [ 8.757850][ T181] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.757852][ T181] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.757855][ T181] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.757858][ T181] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.757861][ T181] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.757863][ T181] RIP: 0033:0x7f1178a001b8 [ 8.757865][ T181] Code: Unable to access opcode bytes at 0x7f1178a0018e. Code starting with the faulting instruction =========================================== [ 8.757866][ T181] RSP: 002b:00007ffd9ac4f198 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.757869][ T181] RAX: ffffffffffffffda RBX: 00007f1178b30f88 RCX: 00007f1178a001b8 [ 8.757870][ T181] RDX: 00007f117874afc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 8.757871][ T181] RBP: 00007ffd9ac4f1f0 R08: 0000000000000000 R09: 0000000000008010 [ 8.757872][ T181] R10: 00007ffd9ac4efb0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print