====================================== | [ 8.778046][ T156] softirqs last disabled at (6515): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.778049][ T156] Preemption disabled at: | [ 8.778050][ T156] 0x0 | [ 8.778060][ T156] Tainted: [W]=WARN [ 8.778061][ T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.778063][ T156] Call Trace: [ 8.778065][ T156] [ 8.778066][ T156] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.778073][ T156] __might_resched.cold (kernel/sched/core.c:9234) [ 8.778078][ T156] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.778082][ T156] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.778086][ T156] __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)) [ 8.778088][ T156] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.778095][ T156] ? 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) [ 8.778098][ T156] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.778101][ T156] put_chars (drivers/char/virtio_console.c:1176) [ 8.778104][ T156] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.778105][ T156] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.778109][ T156] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.778115][ T156] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.778122][ T156] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.778125][ T156] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778127][ T156] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.778131][ T156] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.778135][ T156] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.778137][ T156] ? 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)) [ 8.778140][ T156] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778142][ T156] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.778146][ T156] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.778151][ T156] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.778153][ T156] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778158][ T156] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.778161][ T156] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.778163][ T156] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778165][ T156] ? 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) [ 8.778169][ T156] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.778170][ T156] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.778173][ T156] vprintk_emit (kernel/printk/printk.c:2479) [ 8.778176][ T156] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.778179][ T156] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778183][ T156] _printk (kernel/printk/printk.c:2504) [ 8.778187][ T156] ? snapshot_read.cold (user.c:?) [ 8.778190][ T156] ? 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) [ 8.778193][ T156] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.778197][ T156] ? 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) [ 8.778199][ T156] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.778203][ T156] ? exit_notify (kernel/exit.c:780) [ 8.778205][ T156] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.778208][ T156] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778211][ T156] do_group_exit (kernel/exit.c:1151) [ 8.778214][ T156] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.778216][ T156] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.778219][ T156] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.778223][ T156] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.778226][ T156] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.778228][ T156] RIP: 0033:0x7ff59b7bb1b8 [ 8.778230][ T156] Code: Unable to access opcode bytes at 0x7ff59b7bb18e. Code starting with the faulting instruction =========================================== [ 8.778231][ T156] RSP: 002b:00007ffcd423d4a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.778234][ T156] RAX: ffffffffffffffda RBX: 00007ff59b8ebf88 RCX: 00007ff59b7bb1b8 [ 8.778235][ T156] RDX: 00007ff59b6f8a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 8.778236][ T156] RBP: 00007ffcd423d500 R08: 00007ffcd423d450 R09: 0000000000001010 [ 8.778237][ T156] R10: 00007ffcd423d360 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print