====================================== | [ 12.275746][ T220] softirqs last disabled at (4330970): release_sock (./include/linux/spinlock.h:353 net/core/sock.c:3858) | [ 12.275749][ T220] Preemption disabled at: | [ 12.275750][ T220] 0x0 | [ 12.275760][ T220] Tainted: [W]=WARN [ 12.275761][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.275763][ T220] Call Trace: [ 12.275765][ T220] [ 12.275766][ T220] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.275772][ T220] __might_resched.cold (kernel/sched/core.c:9234) [ 12.275776][ T220] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.275779][ T220] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.275785][ T220] __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)) [ 12.275787][ T220] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.275793][ T220] ? 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) [ 12.275796][ T220] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.275799][ T220] put_chars (drivers/char/virtio_console.c:1176) [ 12.275802][ T220] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.275804][ T220] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.275808][ T220] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.275814][ T220] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.275820][ T220] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.275822][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.275824][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.275828][ T220] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.275832][ T220] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.275833][ T220] ? 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)) [ 12.275836][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.275837][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.275841][ T220] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.275845][ T220] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.275846][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.275852][ T220] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.275854][ T220] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.275855][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.275857][ T220] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.275861][ T220] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.275863][ T220] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.275866][ T220] vprintk_emit (kernel/printk/printk.c:2479) [ 12.275869][ T220] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.275870][ T220] ? 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) [ 12.275873][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.275877][ T220] _printk (kernel/printk/printk.c:2504) [ 12.275881][ T220] ? snapshot_read.cold (user.c:?) [ 12.275884][ T220] ? 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) [ 12.275886][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.275890][ T220] ? 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) [ 12.275893][ T220] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.275897][ T220] ? exit_notify (kernel/exit.c:780) [ 12.275898][ T220] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.275901][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.275905][ T220] do_group_exit (kernel/exit.c:1151) [ 12.275908][ T220] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.275910][ T220] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.275913][ T220] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.275916][ T220] ? irq_exit_rcu (kernel/softirq.c:786) [ 12.275919][ T220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.275922][ T220] RIP: 0033:0x479678 [ 12.275924][ T220] Code: Unable to access opcode bytes at 0x47964e. Code starting with the faulting instruction =========================================== [ 12.275925][ T220] RSP: 002b:00007ffcc9d1d3c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.275927][ T220] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.275929][ T220] RDX: 00000000006a4708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.275929][ T220] RBP: 00007ffcc9d1d420 R08: 0000000000000000 R09: 00000000006a53e0 [ 12.275930][ T220] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffcc9d1d558 Finger prints: release_sock:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print