====================================== | [ 8.297185][ T127] softirqs last disabled at (19701): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.297187][ T127] Preemption disabled at: | [ 8.297188][ T127] 0x0 | [ 8.297198][ T127] Tainted: [W]=WARN [ 8.297199][ T127] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.297200][ T127] Call Trace: [ 8.297202][ T127] [ 8.297204][ T127] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.297209][ T127] __might_resched.cold (kernel/sched/core.c:9234) [ 8.297213][ T127] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.297216][ T127] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.297221][ T127] __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)) [ 8.297223][ T127] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.297230][ T127] ? 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) [ 8.297232][ T127] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.297235][ T127] put_chars (drivers/char/virtio_console.c:1176) [ 8.297238][ T127] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.297240][ T127] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.297244][ T127] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.297249][ T127] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.297256][ T127] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.297258][ T127] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.297260][ T127] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.297264][ T127] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.297267][ T127] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.297268][ T127] ? 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)) [ 8.297271][ T127] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.297273][ T127] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.297276][ T127] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.297280][ T127] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.297281][ T127] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.297286][ T127] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.297288][ T127] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.297290][ T127] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.297291][ T127] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.297295][ T127] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.297297][ T127] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.297300][ T127] vprintk_emit (kernel/printk/printk.c:2479) [ 8.297303][ T127] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.297305][ T127] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.297309][ T127] _printk (kernel/printk/printk.c:2504) [ 8.297313][ T127] ? snapshot_read.cold (user.c:?) [ 8.297316][ T127] ? 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) [ 8.297318][ T127] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.297322][ T127] ? 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) [ 8.297325][ T127] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.297328][ T127] ? exit_notify (kernel/exit.c:780) [ 8.297329][ T127] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.297332][ T127] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.297336][ T127] do_group_exit (kernel/exit.c:1151) [ 8.297339][ T127] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.297341][ T127] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.297343][ T127] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.297347][ T127] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.297350][ T127] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.297352][ T127] RIP: 0033:0x7f50ef7b31b8 [ 8.297354][ T127] Code: Unable to access opcode bytes at 0x7f50ef7b318e. Code starting with the faulting instruction =========================================== [ 8.297355][ T127] RSP: 002b:00007fff27bb66c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.297357][ T127] RAX: ffffffffffffffda RBX: 00007f50ef8e3f88 RCX: 00007f50ef7b31b8 [ 8.297359][ T127] RDX: 00007f50ef6eea88 RSI: ffffffffffffffa8 RDI: 0000000000000001 [ 8.297359][ T127] RBP: 00007fff27bb6720 R08: 0000000000000000 R09: 00000000000000a0 [ 8.297360][ T127] R10: 00007fff27bb6520 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print