====================================== | [ 9.694454][ T127] softirqs last disabled at (72569): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.694457][ T127] Preemption disabled at: | [ 9.694457][ T127] 0x0 | [ 9.694468][ T127] Tainted: [W]=WARN [ 9.694469][ T127] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.694470][ T127] Call Trace: [ 9.694472][ T127] [ 9.694474][ T127] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.694479][ T127] __might_resched.cold (kernel/sched/core.c:9234) [ 9.694484][ T127] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.694487][ T127] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.694492][ T127] __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)) [ 9.694495][ T127] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.694501][ T127] ? 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) [ 9.694504][ T127] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.694507][ T127] put_chars (drivers/char/virtio_console.c:1176) [ 9.694510][ T127] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.694517][ T127] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.694524][ T127] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.694526][ T127] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.694531][ T127] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.694534][ T127] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.694536][ T127] ? 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)) [ 9.694538][ T127] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.694542][ T127] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.694546][ T127] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.694550][ T127] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.694551][ T127] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.694557][ T127] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.694559][ T127] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.694560][ T127] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.694562][ T127] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.694566][ T127] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.694568][ T127] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.694571][ T127] vprintk_emit (kernel/printk/printk.c:2479) [ 9.694574][ T127] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.694577][ T127] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.694581][ T127] _printk (kernel/printk/printk.c:2504) [ 9.694585][ T127] ? snapshot_read.cold (user.c:?) [ 9.694587][ T127] ? 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) [ 9.694590][ T127] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.694594][ T127] ? 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) [ 9.694597][ T127] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.694601][ T127] ? exit_notify (kernel/exit.c:780) [ 9.694602][ T127] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.694605][ T127] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.694609][ T127] do_group_exit (kernel/exit.c:1151) [ 9.694612][ T127] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.694614][ T127] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.694617][ T127] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.694621][ T127] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.694628][ T127] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.694630][ T127] RIP: 0033:0x7f71e379b1b8 [ 9.694632][ T127] Code: Unable to access opcode bytes at 0x7f71e379b18e. Code starting with the faulting instruction =========================================== [ 9.694633][ T127] RSP: 002b:00007ffc8df789e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.694635][ T127] RAX: ffffffffffffffda RBX: 00007f71e38cbf88 RCX: 00007f71e379b1b8 [ 9.694637][ T127] RDX: 00007f71e27d6b08 RSI: ffffffffffffff98 RDI: 0000000000000000 [ 9.694638][ T127] RBP: 00007ffc8df78a40 R08: 0000000000000000 R09: 00000000000000a0 [ 9.694638][ T127] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000b Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print