====================================== | [ 12.459487][ T84] softirqs last disabled at (385929): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) | [ 12.459490][ T84] Preemption disabled at: | [ 12.459490][ T84] 0x0 | [ 12.459501][ T84] Tainted: [W]=WARN [ 12.459502][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.459503][ T84] Call Trace: [ 12.459505][ T84] [ 12.459507][ T84] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.459513][ T84] __might_resched.cold (kernel/sched/core.c:9234) [ 12.459517][ T84] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.459521][ T84] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.459527][ T84] __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)) [ 12.459529][ T84] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.459536][ T84] ? 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) [ 12.459539][ T84] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.459543][ T84] put_chars (drivers/char/virtio_console.c:1176) [ 12.459546][ T84] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.459548][ T84] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 12.459552][ T84] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.459555][ T84] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.459559][ T84] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.459563][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.459564][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.459569][ T84] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.459572][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.459576][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.459580][ T84] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.459584][ T84] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.459588][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.459590][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.459594][ T84] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.459599][ T84] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.459600][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.459605][ T84] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.459608][ T84] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.459610][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.459612][ T84] ? 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)) [ 12.459616][ T84] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.459618][ T84] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.459621][ T84] vprintk_emit (kernel/printk/printk.c:2479) [ 12.459625][ T84] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.459628][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.459632][ T84] _printk (kernel/printk/printk.c:2504) [ 12.459636][ T84] ? snapshot_read.cold (user.c:?) [ 12.459638][ T84] ? 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) [ 12.459641][ T84] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.459645][ T84] ? 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) [ 12.459647][ T84] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.459651][ T84] ? exit_notify (kernel/exit.c:780) [ 12.459652][ T84] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.459655][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.459659][ T84] do_group_exit (kernel/exit.c:1151) [ 12.459662][ T84] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.459664][ T84] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.459666][ T84] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.459669][ T84] ? irq_exit_rcu (kernel/softirq.c:786) [ 12.459672][ T84] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.459674][ T84] RIP: 0033:0x7f4e77d871b8 [ 12.459677][ T84] Code: Unable to access opcode bytes at 0x7f4e77d8718e. Code starting with the faulting instruction =========================================== [ 12.459678][ T84] RSP: 002b:00007ffc426c7df8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.459680][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4e77d871b8 [ 12.459682][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.459683][ T84] RBP: 00007ffc426c7f80 R08: 000055b9dcd18cc8 R09: 0000000000000000 [ 12.459684][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 Finger prints: do_softirq:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print