====================================== | [ 17.018350][ T407] softirqs last disabled at (40593): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 17.018353][ T407] Preemption disabled at: | [ 17.018353][ T407] 0x0 | [ 17.018364][ T407] Tainted: [W]=WARN [ 17.018364][ T407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.018366][ T407] Call Trace: [ 17.018368][ T407] [ 17.018369][ T407] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.018375][ T407] __might_resched.cold (kernel/sched/core.c:9234) [ 17.018380][ T407] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.018383][ T407] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.018388][ T407] __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)) [ 17.018391][ T407] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.018397][ T407] ? 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) [ 17.018401][ T407] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.018404][ T407] put_chars (drivers/char/virtio_console.c:1176) [ 17.018407][ T407] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.018414][ T407] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.018421][ T407] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.018424][ T407] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.018429][ T407] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.018432][ T407] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.018433][ T407] ? 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)) [ 17.018436][ T407] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.018440][ T407] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.018444][ T407] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.018448][ T407] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.018449][ T407] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.018455][ T407] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.018457][ T407] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.018458][ T407] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.018460][ T407] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 17.018464][ T407] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.018466][ T407] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.018469][ T407] vprintk_emit (kernel/printk/printk.c:2479) [ 17.018472][ T407] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.018475][ T407] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.018479][ T407] _printk (kernel/printk/printk.c:2504) [ 17.018483][ T407] ? snapshot_read.cold (user.c:?) [ 17.018486][ T407] ? 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) [ 17.018489][ T407] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 17.018493][ T407] ? 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) [ 17.018496][ T407] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 17.018500][ T407] ? exit_notify (kernel/exit.c:780) [ 17.018501][ T407] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.018505][ T407] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.018509][ T407] do_group_exit (kernel/exit.c:1151) [ 17.018512][ T407] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 17.018514][ T407] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 17.018517][ T407] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.018520][ T407] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.018524][ T407] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.018526][ T407] RIP: 0033:0x7f7a3a3451b8 [ 17.018528][ T407] Code: Unable to access opcode bytes at 0x7f7a3a34518e. Code starting with the faulting instruction =========================================== [ 17.018529][ T407] RSP: 002b:00007ffd8dde4038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.018532][ T407] RAX: ffffffffffffffda RBX: 00007f7a3a475f88 RCX: 00007f7a3a3451b8 [ 17.018533][ T407] RDX: 00007f7a3a08ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 17.018534][ T407] RBP: 00007ffd8dde4090 R08: 0000000000000000 R09: 0000000000000000 [ 17.018535][ T407] R10: 00007ffd8dde3e50 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print