====================================== | [ 12.450717][ T90] softirqs last disabled at (343900): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 12.450720][ T90] Preemption disabled at: | [ 12.450721][ T90] 0x0 | [ 12.450731][ T90] Tainted: [W]=WARN [ 12.450732][ T90] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.450734][ T90] Call Trace: [ 12.450736][ T90] [ 12.450737][ T90] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.450744][ T90] __might_resched.cold (kernel/sched/core.c:9234) [ 12.450748][ T90] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.450752][ T90] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.450757][ T90] __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)) [ 12.450760][ T90] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.450771][ T90] ? 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) [ 12.450774][ T90] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.450778][ T90] put_chars (drivers/char/virtio_console.c:1176) [ 12.450781][ T90] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.450783][ T90] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 12.450787][ T90] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.450790][ T90] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.450794][ T90] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.450798][ T90] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.450800][ T90] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.450805][ T90] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.450809][ T90] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.450812][ T90] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.450816][ T90] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.450820][ T90] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.450825][ T90] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.450828][ T90] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.450832][ T90] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.450836][ T90] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.450838][ T90] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.450843][ T90] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.450846][ T90] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.450848][ T90] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.450851][ T90] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 12.450854][ T90] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.450856][ T90] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.450859][ T90] vprintk_emit (kernel/printk/printk.c:2479) [ 12.450863][ T90] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.450866][ T90] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.450870][ T90] _printk (kernel/printk/printk.c:2504) [ 12.450874][ T90] ? snapshot_read.cold (user.c:?) [ 12.450876][ T90] ? 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) [ 12.450879][ T90] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.450883][ T90] ? 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) [ 12.450885][ T90] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.450889][ T90] ? exit_notify (kernel/exit.c:780) [ 12.450890][ T90] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.450893][ T90] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.450897][ T90] do_group_exit (kernel/exit.c:1151) [ 12.450900][ T90] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.450902][ T90] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.450904][ T90] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.450907][ T90] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.450911][ T90] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.450913][ T90] RIP: 0033:0x7f955cb921b8 [ 12.450915][ T90] Code: Unable to access opcode bytes at 0x7f955cb9218e. Code starting with the faulting instruction =========================================== [ 12.450916][ T90] RSP: 002b:00007ffdd688ea38 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.450919][ T90] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f955cb921b8 [ 12.450920][ T90] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.450921][ T90] RBP: 00007ffdd688ebc0 R08: 000055a16716f3d8 R09: 0000000000000000 [ 12.450922][ T90] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 Finger prints: netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print