====================================== | [ 18.816985][ T702] softirqs last disabled at (31667): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 18.816987][ T702] Preemption disabled at: | [ 18.816988][ T702] 0x0 | [ 18.816997][ T702] Tainted: [W]=WARN [ 18.816998][ T702] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.817000][ T702] Call Trace: [ 18.817002][ T702] [ 18.817003][ T702] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.817010][ T702] __might_resched.cold (kernel/sched/core.c:9234) [ 18.817014][ T702] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.817018][ T702] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.817023][ T702] __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)) [ 18.817025][ T702] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.817032][ T702] ? 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) [ 18.817034][ T702] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.817038][ T702] put_chars (drivers/char/virtio_console.c:1176) [ 18.817040][ T702] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.817042][ T702] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.817045][ T702] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.817050][ T702] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.817058][ T702] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.817061][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.817063][ T702] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.817066][ T702] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.817070][ T702] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.817072][ T702] ? 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)) [ 18.817075][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.817077][ T702] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.817081][ T702] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.817085][ T702] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.817086][ T702] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.817092][ T702] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.817094][ T702] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.817096][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.817098][ T702] ? 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) [ 18.817102][ T702] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.817103][ T702] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.817106][ T702] vprintk_emit (kernel/printk/printk.c:2479) [ 18.817109][ T702] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.817112][ T702] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.817115][ T702] _printk (kernel/printk/printk.c:2504) [ 18.817119][ T702] ? snapshot_read.cold (user.c:?) [ 18.817122][ T702] ? 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) [ 18.817124][ T702] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 18.817128][ T702] ? 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) [ 18.817131][ T702] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 18.817134][ T702] ? exit_notify (kernel/exit.c:780) [ 18.817136][ T702] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.817138][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.817142][ T702] do_group_exit (kernel/exit.c:1151) [ 18.817144][ T702] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 18.817146][ T702] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 18.817149][ T702] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 18.817153][ T702] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 18.817156][ T702] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.817158][ T702] RIP: 0033:0x7f71a403c1b8 [ 18.817160][ T702] Code: Unable to access opcode bytes at 0x7f71a403c18e. Code starting with the faulting instruction =========================================== [ 18.817161][ T702] RSP: 002b:00007ffd39be1b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 18.817163][ T702] RAX: ffffffffffffffda RBX: 00007f71a416cf88 RCX: 00007f71a403c1b8 [ 18.817165][ T702] RDX: 00007f71a3d86fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 18.817165][ T702] RBP: 00007ffd39be1b70 R08: 0000000000000000 R09: 0000000000000000 [ 18.817166][ T702] R10: 00007ffd39be1930 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print