====================================== | [ 9.875659][ T170] softirqs last disabled at (30553): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.875661][ T170] Preemption disabled at: | [ 9.875662][ T170] 0x0 | [ 9.875676][ T170] Tainted: [W]=WARN [ 9.875677][ T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.875679][ T170] Call Trace: [ 9.875681][ T170] [ 9.875682][ T170] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.875688][ T170] __might_resched.cold (kernel/sched/core.c:9234) [ 9.875692][ T170] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.875696][ T170] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.875701][ T170] __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)) [ 9.875703][ T170] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.875710][ T170] ? 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) [ 9.875713][ T170] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.875716][ T170] put_chars (drivers/char/virtio_console.c:1176) [ 9.875719][ T170] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.875721][ T170] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.875725][ T170] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.875730][ T170] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.875737][ T170] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.875739][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.875741][ T170] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.875745][ T170] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.875748][ T170] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.875750][ T170] ? 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)) [ 9.875752][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.875754][ T170] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.875758][ T170] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.875762][ T170] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.875763][ T170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.875768][ T170] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.875771][ T170] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.875772][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.875774][ T170] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.875778][ T170] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.875779][ T170] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.875782][ T170] vprintk_emit (kernel/printk/printk.c:2479) [ 9.875785][ T170] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.875788][ T170] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.875792][ T170] _printk (kernel/printk/printk.c:2504) [ 9.875796][ T170] ? snapshot_read.cold (user.c:?) [ 9.875799][ T170] ? 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) [ 9.875801][ T170] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.875805][ T170] ? 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) [ 9.875808][ T170] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.875811][ T170] ? exit_notify (kernel/exit.c:780) [ 9.875813][ T170] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.875816][ T170] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.875820][ T170] do_group_exit (kernel/exit.c:1151) [ 9.875822][ T170] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.875825][ T170] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.875827][ T170] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.875831][ T170] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.875834][ T170] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.875836][ T170] RIP: 0033:0x7f423b3ce1b8 [ 9.875839][ T170] Code: Unable to access opcode bytes at 0x7f423b3ce18e. Code starting with the faulting instruction =========================================== [ 9.875840][ T170] RSP: 002b:00007ffcda7cbc38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.875842][ T170] RAX: ffffffffffffffda RBX: 00007f423b4fef88 RCX: 00007f423b3ce1b8 [ 9.875844][ T170] RDX: 00007f423b118fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.875845][ T170] RBP: 00007ffcda7cbc90 R08: 0000000000000000 R09: 0000000000008010 [ 9.875846][ T170] R10: 00007ffcda7cba50 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print