====================================== | [ 15.086585][ T187] softirqs last disabled at (34399): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 15.086589][ T187] Preemption disabled at: | [ 15.086590][ T187] 0x0 | [ 15.086603][ T187] Tainted: [W]=WARN [ 15.086604][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.086607][ T187] Call Trace: [ 15.086609][ T187] [ 15.086611][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.086620][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 15.086628][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.086634][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.086642][ T187] __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)) [ 15.086646][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.086655][ T187] ? 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) [ 15.086659][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.086664][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 15.086669][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.086671][ T187] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.086678][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.086688][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.086700][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.086703][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.086707][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.086715][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.086722][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.086724][ T187] ? 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)) [ 15.086730][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.086734][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.086741][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.086749][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.086752][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.086762][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.086767][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.086770][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.086773][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.086780][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.086783][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.086789][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 15.086795][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.086802][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.086808][ T187] _printk (kernel/printk/printk.c:2504) [ 15.086814][ T187] ? snapshot_read.cold (user.c:?) [ 15.086818][ T187] ? 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) [ 15.086823][ T187] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.086830][ T187] ? 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) [ 15.086834][ T187] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 15.086840][ T187] ? exit_notify (kernel/exit.c:780) [ 15.086843][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.086848][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.086856][ T187] do_group_exit (kernel/exit.c:1151) [ 15.086861][ T187] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 15.086864][ T187] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 15.086867][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.086872][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.086877][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.086880][ T187] RIP: 0033:0x7f5cbdfec1b8 [ 15.086884][ T187] Code: Unable to access opcode bytes at 0x7f5cbdfec18e. Code starting with the faulting instruction =========================================== [ 15.086885][ T187] RSP: 002b:00007ffc65f774b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.086889][ T187] RAX: ffffffffffffffda RBX: 00007f5cbe11cf88 RCX: 00007f5cbdfec1b8 [ 15.086891][ T187] RDX: 00007f5cbdd36fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 15.086893][ T187] RBP: 00007ffc65f77510 R08: 0000000000000000 R09: 0000000000008010 [ 15.086894][ T187] R10: 00007ffc65f772d0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print