====================================== | [ 8.869453][ T137] softirqs last disabled at (74395): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.869455][ T137] Preemption disabled at: | [ 8.869456][ T137] 0x0 | [ 8.869465][ T137] Tainted: [W]=WARN [ 8.869466][ T137] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.869468][ T137] Call Trace: [ 8.869470][ T137] [ 8.869471][ T137] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.869476][ T137] __might_resched.cold (kernel/sched/core.c:9234) [ 8.869485][ T137] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.869488][ T137] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.869492][ T137] __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)) [ 8.869495][ T137] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.869501][ T137] ? 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) [ 8.869504][ T137] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.869507][ T137] put_chars (drivers/char/virtio_console.c:1176) [ 8.869510][ T137] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.869516][ T137] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.869522][ T137] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.869525][ T137] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.869529][ T137] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.869532][ T137] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.869534][ T137] ? 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)) [ 8.869536][ T137] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.869540][ T137] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.869544][ T137] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.869547][ T137] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.869548][ T137] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.869553][ T137] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.869555][ T137] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.869557][ T137] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.869558][ T137] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.869562][ T137] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.869564][ T137] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.869567][ T137] vprintk_emit (kernel/printk/printk.c:2479) [ 8.869570][ T137] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.869572][ T137] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.869576][ T137] _printk (kernel/printk/printk.c:2504) [ 8.869580][ T137] ? snapshot_read.cold (user.c:?) [ 8.869582][ T137] ? 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) [ 8.869585][ T137] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.869589][ T137] ? 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) [ 8.869591][ T137] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.869595][ T137] ? exit_notify (kernel/exit.c:780) [ 8.869596][ T137] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.869599][ T137] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.869603][ T137] do_group_exit (kernel/exit.c:1151) [ 8.869606][ T137] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.869608][ T137] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.869610][ T137] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.869614][ T137] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.869617][ T137] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.869619][ T137] RIP: 0033:0x7f56924b91b8 [ 8.869621][ T137] Code: Unable to access opcode bytes at 0x7f56924b918e. Code starting with the faulting instruction =========================================== [ 8.869622][ T137] RSP: 002b:00007ffeda5aa758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.869624][ T137] RAX: ffffffffffffffda RBX: 00007f56925e9f88 RCX: 00007f56924b91b8 [ 8.869626][ T137] RDX: 00007f56914f4b08 RSI: ffffffffffffff98 RDI: 0000000000000000 [ 8.869626][ T137] RBP: 00007ffeda5aa7b0 R08: 0000000000000000 R09: 00000000000000a0 [ 8.869627][ T137] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000b Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print