====================================== | [ 10.377078][ T199] softirqs last disabled at (20743): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.377080][ T199] Preemption disabled at: | [ 10.377081][ T199] 0x0 | [ 10.377091][ T199] Tainted: [W]=WARN [ 10.377092][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.377093][ T199] Call Trace: [ 10.377095][ T199] [ 10.377097][ T199] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.377103][ T199] __might_resched.cold (kernel/sched/core.c:9234) [ 10.377107][ T199] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.377111][ T199] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.377116][ T199] __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)) [ 10.377118][ T199] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.377124][ T199] ? 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) [ 10.377127][ T199] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.377130][ T199] put_chars (drivers/char/virtio_console.c:1176) [ 10.377134][ T199] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.377136][ T199] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.377140][ T199] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.377145][ T199] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.377152][ T199] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.377155][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.377157][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.377161][ T199] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.377164][ T199] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.377166][ T199] ? 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)) [ 10.377169][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.377171][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.377174][ T199] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.377178][ T199] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.377180][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.377184][ T199] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.377187][ T199] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.377188][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.377191][ T199] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.377194][ T199] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.377195][ T199] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.377198][ T199] vprintk_emit (kernel/printk/printk.c:2479) [ 10.377202][ T199] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.377205][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.377208][ T199] _printk (kernel/printk/printk.c:2504) [ 10.377212][ T199] ? snapshot_read.cold (user.c:?) [ 10.377215][ T199] ? 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) [ 10.377217][ T199] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.377221][ T199] ? 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) [ 10.377223][ T199] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.377227][ T199] ? exit_notify (kernel/exit.c:780) [ 10.377228][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.377232][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.377237][ T199] do_group_exit (kernel/exit.c:1151) [ 10.377240][ T199] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.377242][ T199] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.377244][ T199] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.377248][ T199] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.377251][ T199] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.377253][ T199] RIP: 0033:0x7fc8ecc891b8 [ 10.377256][ T199] Code: Unable to access opcode bytes at 0x7fc8ecc8918e. Code starting with the faulting instruction =========================================== [ 10.377257][ T199] RSP: 002b:00007ffc3bdcdb08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.377259][ T199] RAX: ffffffffffffffda RBX: 00007fc8ecdb9f88 RCX: 00007fc8ecc891b8 [ 10.377260][ T199] RDX: 00007fc8ec9d3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.377261][ T199] RBP: 00007ffc3bdcdb60 R08: 0000000000000000 R09: 0000000000000050 [ 10.377262][ T199] R10: 00007ffc3bdcd920 R11: 0000000000000246 R12: 0000000000000001 [ 10.377263][ T199] R13: 0000000000000000 R14: 00007fc8ecdb8680 R15: 00007fc8ecdb9fa0 | [ 79.831449][ T2906] softirqs last disabled at (37171): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 79.831451][ T2906] Preemption disabled at: | [ 79.831452][ T2906] 0x0 | [ 79.831461][ T2906] Tainted: [W]=WARN [ 79.831462][ T2906] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 79.831464][ T2906] Call Trace: [ 79.831465][ T2906] [ 79.831467][ T2906] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 79.831473][ T2906] __might_resched.cold (kernel/sched/core.c:9234) [ 79.831478][ T2906] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 79.831482][ T2906] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 79.831486][ T2906] __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)) [ 79.831488][ T2906] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 79.831494][ T2906] ? 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) [ 79.831497][ T2906] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 79.831500][ T2906] put_chars (drivers/char/virtio_console.c:1176) [ 79.831503][ T2906] ? __send_to_port (drivers/char/virtio_console.c:654) [ 79.831505][ T2906] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 79.831510][ T2906] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 79.831515][ T2906] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 79.831522][ T2906] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 79.831525][ T2906] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 79.831527][ T2906] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 79.831530][ T2906] console_emit_next_record (kernel/printk/printk.c:3183) [ 79.831534][ T2906] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 79.831536][ T2906] ? 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)) [ 79.831538][ T2906] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 79.831541][ T2906] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 79.831544][ T2906] console_flush_one_record (kernel/printk/printk.c:3268) [ 79.831548][ T2906] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 79.831550][ T2906] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 79.831554][ T2906] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 79.831557][ T2906] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 79.831558][ T2906] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 79.831560][ T2906] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 79.831564][ T2906] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 79.831565][ T2906] ? vprintk_emit (kernel/printk/printk.c:2478) [ 79.831568][ T2906] vprintk_emit (kernel/printk/printk.c:2479) [ 79.831572][ T2906] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 79.831575][ T2906] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 79.831578][ T2906] _printk (kernel/printk/printk.c:2504) [ 79.831582][ T2906] ? snapshot_read.cold (user.c:?) [ 79.831584][ T2906] ? 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) [ 79.831586][ T2906] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 79.831590][ T2906] ? 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) [ 79.831592][ T2906] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 79.831596][ T2906] ? exit_notify (kernel/exit.c:780) [ 79.831598][ T2906] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 79.831600][ T2906] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 79.831604][ T2906] do_group_exit (kernel/exit.c:1151) [ 79.831607][ T2906] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 79.831609][ T2906] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 79.831611][ T2906] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 79.831615][ T2906] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 79.831618][ T2906] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 79.831620][ T2906] RIP: 0033:0x7f9d87e061b8 [ 79.831622][ T2906] Code: Unable to access opcode bytes at 0x7f9d87e0618e. Code starting with the faulting instruction =========================================== [ 79.831623][ T2906] RSP: 002b:00007ffdfd9d2bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 79.831626][ T2906] RAX: ffffffffffffffda RBX: 00007f9d87f36f88 RCX: 00007f9d87e061b8 [ 79.831627][ T2906] RDX: 00007f9d87d16dc8 RSI: fffffffffffffc30 RDI: 0000000000000000 [ 79.831628][ T2906] RBP: 00007ffdfd9d2c50 R08: 0000000000000000 R09: 0000000000000030 [ 79.831629][ T2906] R10: 00007ffdfd9d2a50 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print