====================================== | [ 9.577775][ T186] softirqs last disabled at (47035): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.577778][ T186] Preemption disabled at: | [ 9.577778][ T186] 0x0 | [ 9.577788][ T186] Tainted: [W]=WARN [ 9.577789][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.577791][ T186] Call Trace: [ 9.577793][ T186] [ 9.577794][ T186] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.577800][ T186] __might_resched.cold (kernel/sched/core.c:9234) [ 9.577806][ T186] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.577810][ T186] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.577815][ T186] __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)) [ 9.577818][ T186] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.577824][ T186] ? 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) [ 9.577827][ T186] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.577830][ T186] put_chars (drivers/char/virtio_console.c:1176) [ 9.577833][ T186] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.577834][ T186] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.577839][ T186] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.577844][ T186] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.577850][ T186] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.577852][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.577855][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.577859][ T186] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.577863][ T186] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.577864][ T186] ? 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)) [ 9.577868][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.577870][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.577874][ T186] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.577878][ T186] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.577880][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.577885][ T186] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.577888][ T186] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.577890][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.577892][ T186] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.577896][ T186] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.577897][ T186] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.577901][ T186] vprintk_emit (kernel/printk/printk.c:2479) [ 9.577904][ T186] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.577908][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.577911][ T186] _printk (kernel/printk/printk.c:2504) [ 9.577916][ T186] ? snapshot_read.cold (user.c:?) [ 9.577918][ T186] ? 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) [ 9.577921][ T186] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.577925][ T186] ? 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) [ 9.577928][ T186] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.577931][ T186] ? exit_notify (kernel/exit.c:780) [ 9.577933][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.577942][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.577946][ T186] do_group_exit (kernel/exit.c:1151) [ 9.577949][ T186] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.577950][ T186] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.577953][ T186] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.577956][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.577959][ T186] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.577962][ T186] RIP: 0033:0x7f68340a51b8 [ 9.577964][ T186] Code: Unable to access opcode bytes at 0x7f68340a518e. Code starting with the faulting instruction =========================================== [ 9.577965][ T186] RSP: 002b:00007ffc1829d148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.577967][ T186] RAX: ffffffffffffffda RBX: 00007f68341d5f88 RCX: 00007f68340a51b8 [ 9.577969][ T186] RDX: 00007f6833deffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.577970][ T186] RBP: 00007ffc1829d1a0 R08: 0000000000000000 R09: 0000000000008010 [ 9.577971][ T186] R10: 00007ffc1829cf60 R11: 0000000000000246 R12: 0000000000000001 [ 9.577971][ T186] R13: 0000000000000000 R14: 00007f68341d4680 R15: 00007f68341d5fa0 | [ 22.229445][ T494] softirqs last disabled at (15341): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 22.229448][ T494] Preemption disabled at: | [ 22.229449][ T494] 0x0 | [ 22.229462][ T494] Tainted: [W]=WARN [ 22.229463][ T494] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.229465][ T494] Call Trace: [ 22.229468][ T494] [ 22.229470][ T494] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.229476][ T494] __might_resched.cold (kernel/sched/core.c:9234) [ 22.229481][ T494] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.229485][ T494] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.229490][ T494] __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)) [ 22.229492][ T494] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.229498][ T494] ? 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) [ 22.229501][ T494] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.229503][ T494] put_chars (drivers/char/virtio_console.c:1176) [ 22.229506][ T494] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.229508][ T494] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.229512][ T494] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.229517][ T494] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.229523][ T494] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.229525][ T494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.229528][ T494] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.229533][ T494] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.229539][ T494] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.229542][ T494] ? 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)) [ 22.229547][ T494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.229550][ T494] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.229557][ T494] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.229564][ T494] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.229567][ T494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.229577][ T494] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.229581][ T494] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.229584][ T494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.229588][ T494] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 22.229594][ T494] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.229597][ T494] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.229602][ T494] vprintk_emit (kernel/printk/printk.c:2479) [ 22.229609][ T494] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.229614][ T494] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.229621][ T494] _printk (kernel/printk/printk.c:2504) [ 22.229626][ T494] ? snapshot_read.cold (user.c:?) [ 22.229631][ T494] ? 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) [ 22.229635][ T494] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 22.229642][ T494] ? 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) [ 22.229646][ T494] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 22.229652][ T494] ? exit_notify (kernel/exit.c:780) [ 22.229654][ T494] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.229659][ T494] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.229666][ T494] do_group_exit (kernel/exit.c:1151) [ 22.229671][ T494] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 22.229674][ T494] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 22.229677][ T494] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.229681][ T494] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.229684][ T494] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.229687][ T494] RIP: 0033:0x7f10cd1621b8 [ 22.229689][ T494] Code: Unable to access opcode bytes at 0x7f10cd16218e. Code starting with the faulting instruction =========================================== [ 22.229690][ T494] RSP: 002b:00007ffd287d4088 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 22.229692][ T494] RAX: ffffffffffffffda RBX: 00007f10cd292f88 RCX: 00007f10cd1621b8 [ 22.229694][ T494] RDX: 00007f10ccf86a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 22.229695][ T494] RBP: 00007ffd287d40e0 R08: 00000000ffffffff R09: 0000000000000020 [ 22.229695][ T494] R10: 00007ffd287d3f00 R11: 0000000000000246 R12: 0000000000000004 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print