====================================== | [ 10.576488][ T212] softirqs last disabled at (39749): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.576490][ T212] Preemption disabled at: | [ 10.576491][ T212] 0x0 | [ 10.576501][ T212] Tainted: [W]=WARN [ 10.576502][ T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.576503][ T212] Call Trace: [ 10.576505][ T212] [ 10.576507][ T212] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.576513][ T212] __might_resched.cold (kernel/sched/core.c:9234) [ 10.576517][ T212] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.576522][ T212] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.576526][ T212] __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)) [ 10.576528][ T212] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.576535][ T212] ? 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) [ 10.576538][ T212] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.576542][ T212] put_chars (drivers/char/virtio_console.c:1176) [ 10.576544][ T212] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.576545][ T212] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.576549][ T212] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.576554][ T212] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.576562][ T212] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.576565][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.576567][ T212] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.576571][ T212] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.576575][ T212] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.576577][ T212] ? 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)) [ 10.576580][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.576582][ T212] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.576586][ T212] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.576590][ T212] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.576592][ T212] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.576598][ T212] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.576600][ T212] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.576602][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.576604][ T212] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 10.576608][ T212] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.576610][ T212] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.576612][ T212] vprintk_emit (kernel/printk/printk.c:2479) [ 10.576616][ T212] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.576619][ T212] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.576622][ T212] _printk (kernel/printk/printk.c:2504) [ 10.576626][ T212] ? snapshot_read.cold (user.c:?) [ 10.576629][ T212] ? 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) [ 10.576632][ T212] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.576636][ T212] ? 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) [ 10.576638][ T212] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.576642][ T212] ? exit_notify (kernel/exit.c:780) [ 10.576643][ T212] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.576646][ T212] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.576650][ T212] do_group_exit (kernel/exit.c:1151) [ 10.576653][ T212] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.576655][ T212] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.576657][ T212] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.576661][ T212] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.576664][ T212] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.576666][ T212] RIP: 0033:0x7f874c0e71b8 [ 10.576668][ T212] Code: Unable to access opcode bytes at 0x7f874c0e718e. Code starting with the faulting instruction =========================================== [ 10.576670][ T212] RSP: 002b:00007ffd3fbeb6d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.576672][ T212] RAX: ffffffffffffffda RBX: 00007f874c217f88 RCX: 00007f874c0e71b8 [ 10.576673][ T212] RDX: 00007f874be31fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.576674][ T212] RBP: 00007ffd3fbeb730 R08: 0000000000000000 R09: 0000000000000000 [ 10.576675][ T212] R10: 00007ffd3fbeb4f0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print