====================================== | [ 12.436291][ T155] softirqs last disabled at (85049): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.436293][ T155] Preemption disabled at: | [ 12.436294][ T155] 0x0 | [ 12.436304][ T155] Tainted: [W]=WARN [ 12.436305][ T155] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.436307][ T155] Call Trace: [ 12.436308][ T155] [ 12.436310][ T155] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.436315][ T155] __might_resched.cold (kernel/sched/core.c:9234) [ 12.436319][ T155] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.436323][ T155] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.436328][ T155] __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)) [ 12.436330][ T155] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.436336][ T155] ? 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) [ 12.436339][ T155] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.436342][ T155] put_chars (drivers/char/virtio_console.c:1176) [ 12.436345][ T155] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.436347][ T155] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.436351][ T155] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.436356][ T155] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.436363][ T155] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.436365][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.436367][ T155] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.436371][ T155] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.436374][ T155] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.436375][ T155] ? 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)) [ 12.436378][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.436380][ T155] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.436384][ T155] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.436387][ T155] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.436389][ T155] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.436394][ T155] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.436396][ T155] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.436397][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.436399][ T155] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.436403][ T155] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.436405][ T155] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.436407][ T155] vprintk_emit (kernel/printk/printk.c:2479) [ 12.436410][ T155] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.436413][ T155] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.436417][ T155] _printk (kernel/printk/printk.c:2504) [ 12.436421][ T155] ? snapshot_read.cold (user.c:?) [ 12.436424][ T155] ? 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) [ 12.436426][ T155] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.436430][ T155] ? 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) [ 12.436433][ T155] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.436436][ T155] ? exit_notify (kernel/exit.c:780) [ 12.436438][ T155] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.436441][ T155] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.436444][ T155] do_group_exit (kernel/exit.c:1151) [ 12.436447][ T155] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.436449][ T155] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.436452][ T155] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.436456][ T155] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.436459][ T155] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.436461][ T155] RIP: 0033:0x7fc47f0481b8 [ 12.436463][ T155] Code: Unable to access opcode bytes at 0x7fc47f04818e. Code starting with the faulting instruction =========================================== [ 12.436464][ T155] RSP: 002b:00007ffd9f61da28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.436466][ T155] RAX: ffffffffffffffda RBX: 00007fc47f178f88 RCX: 00007fc47f0481b8 [ 12.436468][ T155] RDX: 00007fc47ee36cc8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 12.436469][ T155] RBP: 00007ffd9f61da80 R08: 0000000000000000 R09: 0000000000000050 [ 12.436470][ T155] R10: 00007ffd9f61d880 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print