====================================== | [ 12.304509][ T258] softirqs last disabled at (32173): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.304512][ T258] Preemption disabled at: | [ 12.304512][ T258] 0x0 | [ 12.304522][ T258] Tainted: [W]=WARN [ 12.304523][ T258] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.304525][ T258] Call Trace: [ 12.304527][ T258] [ 12.304528][ T258] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.304534][ T258] __might_resched.cold (kernel/sched/core.c:9234) [ 12.304539][ T258] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.304543][ T258] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.304548][ T258] __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)) [ 12.304550][ T258] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.304556][ T258] ? 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) [ 12.304558][ T258] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.304562][ T258] put_chars (drivers/char/virtio_console.c:1176) [ 12.304565][ T258] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.304566][ T258] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.304571][ T258] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.304576][ T258] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.304585][ T258] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.304587][ T258] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.304590][ T258] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.304594][ T258] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.304597][ T258] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.304599][ T258] ? 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)) [ 12.304602][ T258] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.304605][ T258] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.304608][ T258] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.304612][ T258] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.304614][ T258] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.304619][ T258] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.304622][ T258] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.304624][ T258] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.304626][ T258] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.304629][ T258] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.304631][ T258] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.304635][ T258] vprintk_emit (kernel/printk/printk.c:2479) [ 12.304638][ T258] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.304642][ T258] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.304645][ T258] _printk (kernel/printk/printk.c:2504) [ 12.304648][ T258] ? snapshot_read.cold (user.c:?) [ 12.304651][ T258] ? 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) [ 12.304654][ T258] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.304657][ T258] ? 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) [ 12.304660][ T258] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.304664][ T258] ? exit_notify (kernel/exit.c:780) [ 12.304665][ T258] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.304668][ T258] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.304672][ T258] do_group_exit (kernel/exit.c:1151) [ 12.304675][ T258] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.304676][ T258] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.304679][ T258] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.304683][ T258] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.304686][ T258] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.304688][ T258] RIP: 0033:0x7fdfcb7b81b8 [ 12.304690][ T258] Code: Unable to access opcode bytes at 0x7fdfcb7b818e. Code starting with the faulting instruction =========================================== [ 12.304691][ T258] RSP: 002b:00007fff696db2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.304694][ T258] RAX: ffffffffffffffda RBX: 00007fdfcb8e8f88 RCX: 00007fdfcb7b81b8 [ 12.304695][ T258] RDX: 00007fdfcb502fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.304696][ T258] RBP: 00007fff696db340 R08: 0000000000000000 R09: 0000000000000000 [ 12.304697][ T258] R10: 00007fff696db100 R11: 0000000000000246 R12: 0000000000000001 [ 12.304697][ T258] R13: 0000000000000000 R14: 00007fdfcb8e7680 R15: 00007fdfcb8e8fa0 | [ 22.772165][ T518] softirqs last disabled at (6497843): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 22.772168][ T518] Preemption disabled at: | [ 22.772169][ T518] 0x0 | [ 22.772183][ T518] Tainted: [W]=WARN [ 22.772184][ T518] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.772187][ T518] Call Trace: [ 22.772189][ T518] [ 22.772191][ T518] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.772199][ T518] __might_resched.cold (kernel/sched/core.c:9234) [ 22.772205][ T518] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.772210][ T518] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.772217][ T518] __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)) [ 22.772221][ T518] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.772229][ T518] ? 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) [ 22.772233][ T518] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.772238][ T518] put_chars (drivers/char/virtio_console.c:1176) [ 22.772241][ T518] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 22.772245][ T518] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.772250][ T518] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.772256][ T518] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.772259][ T518] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.772265][ T518] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.772269][ T518] ? mark_usage (kernel/locking/lockdep.c:4690) [ 22.772272][ T518] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.772274][ T518] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.772280][ T518] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.772284][ T518] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 22.772290][ T518] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.772294][ T518] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.772301][ T518] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.772307][ T518] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.772310][ T518] ? 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)) [ 22.772315][ T518] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.772318][ T518] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.772325][ T518] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.772332][ T518] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.772334][ T518] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.772343][ T518] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.772347][ T518] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.772350][ T518] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.772353][ T518] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 22.772359][ T518] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.772362][ T518] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.772367][ T518] vprintk_emit (kernel/printk/printk.c:2479) [ 22.772373][ T518] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.772379][ T518] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.772385][ T518] _printk (kernel/printk/printk.c:2504) [ 22.772390][ T518] ? snapshot_read.cold (user.c:?) [ 22.772394][ T518] ? 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) [ 22.772398][ T518] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 22.772404][ T518] ? 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) [ 22.772408][ T518] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 22.772414][ T518] ? exit_notify (kernel/exit.c:780) [ 22.772423][ T518] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 22.772426][ T518] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 22.772429][ T518] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.772433][ T518] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.772438][ T518] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.772441][ T518] RIP: 0033:0x7fba627c7c49 [ 22.772444][ T518] Code: Unable to access opcode bytes at 0x7fba627c7c1f. Code starting with the faulting instruction =========================================== [ 22.772451][ T518] RSP: 002b:00007fba61f86e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 22.772454][ T518] RAX: ffffffffffffffda RBX: 00007fba61f876c0 RCX: 00007fba627c7c49 [ 22.772456][ T518] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 22.772458][ T518] RBP: 00007fba61f86f70 R08: 0000000000000001 R09: 00007fba61f876c0 [ 22.772459][ T518] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fba61787000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print