====================================== | [ 44.831995][ T610] softirqs last disabled at (81775): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 44.831997][ T610] Preemption disabled at: | [ 44.831998][ T610] 0x0 | [ 44.832009][ T610] Tainted: [W]=WARN [ 44.832010][ T610] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.832012][ T610] Call Trace: [ 44.832013][ T610] [ 44.832015][ T610] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 44.832021][ T610] __might_resched.cold (kernel/sched/core.c:9234) [ 44.832026][ T610] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 44.832031][ T610] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 44.832036][ T610] __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)) [ 44.832039][ T610] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.832046][ T610] ? 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) [ 44.832049][ T610] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.832052][ T610] put_chars (drivers/char/virtio_console.c:1176) [ 44.832056][ T610] ? __send_to_port (drivers/char/virtio_console.c:654) [ 44.832058][ T610] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 44.832062][ T610] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 44.832064][ T610] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 44.832069][ T610] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 44.832072][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.832074][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.832079][ T610] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 44.832082][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.832085][ T610] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.832089][ T610] console_emit_next_record (kernel/printk/printk.c:3183) [ 44.832093][ T610] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 44.832098][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.832100][ T610] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.832104][ T610] console_flush_one_record (kernel/printk/printk.c:3268) [ 44.832108][ T610] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 44.832110][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.832116][ T610] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 44.832119][ T610] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 44.832121][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.832123][ T610] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 44.832127][ T610] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 44.832128][ T610] ? vprintk_emit (kernel/printk/printk.c:2478) [ 44.832132][ T610] vprintk_emit (kernel/printk/printk.c:2479) [ 44.832136][ T610] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 44.832140][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.832143][ T610] _printk (kernel/printk/printk.c:2504) [ 44.832147][ T610] ? snapshot_read.cold (user.c:?) [ 44.832150][ T610] ? 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) [ 44.832153][ T610] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 44.832157][ T610] ? 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) [ 44.832159][ T610] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 44.832163][ T610] ? exit_notify (kernel/exit.c:780) [ 44.832165][ T610] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.832168][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.832173][ T610] do_group_exit (kernel/exit.c:1151) [ 44.832176][ T610] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 44.832179][ T610] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 44.832182][ T610] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 44.832186][ T610] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 44.832189][ T610] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 44.832192][ T610] RIP: 0033:0x7fe6485e01b8 [ 44.832194][ T610] Code: Unable to access opcode bytes at 0x7fe6485e018e. Code starting with the faulting instruction =========================================== [ 44.832195][ T610] RSP: 002b:00007ffdc3b385a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 44.832198][ T610] RAX: ffffffffffffffda RBX: 00007fe648710f88 RCX: 00007fe6485e01b8 [ 44.832199][ T610] RDX: 00007fe6484c5e88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 44.832200][ T610] RBP: 00007ffdc3b38600 R08: 0000000000000000 R09: 0000000000004010 [ 44.832201][ T610] R10: 00007ffdc3b38400 R11: 0000000000000246 R12: 0000000000000003 [ 44.832202][ T610] R13: 0000000000000000 R14: 00007fe64870f680 R15: 00007fe648710fa0 | [ 55.091510][ T349] softirqs last disabled at (3607475): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 55.091514][ T349] Preemption disabled at: | [ 55.091515][ T349] 0x0 | [ 55.091529][ T349] Tainted: [W]=WARN [ 55.091530][ T349] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 55.091533][ T349] Call Trace: [ 55.091535][ T349] [ 55.091537][ T349] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 55.091545][ T349] __might_resched.cold (kernel/sched/core.c:9234) [ 55.091551][ T349] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 55.091557][ T349] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 55.091565][ T349] __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)) [ 55.091568][ T349] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 55.091578][ T349] ? 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) [ 55.091582][ T349] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 55.091587][ T349] put_chars (drivers/char/virtio_console.c:1176) [ 55.091592][ T349] ? __send_to_port (drivers/char/virtio_console.c:654) [ 55.091595][ T349] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 55.091601][ T349] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 55.091605][ T349] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 55.091612][ T349] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 55.091617][ T349] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.091620][ T349] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.091628][ T349] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 55.091634][ T349] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.091639][ T349] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 55.091646][ T349] console_emit_next_record (kernel/printk/printk.c:3183) [ 55.091652][ T349] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 55.091660][ T349] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.091664][ T349] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 55.091671][ T349] console_flush_one_record (kernel/printk/printk.c:3268) [ 55.091678][ T349] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 55.091681][ T349] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.091690][ T349] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 55.091695][ T349] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 55.091697][ T349] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.091701][ T349] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 55.091707][ T349] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 55.091710][ T349] ? vprintk_emit (kernel/printk/printk.c:2478) [ 55.091715][ T349] vprintk_emit (kernel/printk/printk.c:2479) [ 55.091721][ T349] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 55.091724][ T349] ? 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) [ 55.091729][ T349] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.091735][ T349] _printk (kernel/printk/printk.c:2504) [ 55.091740][ T349] ? snapshot_read.cold (user.c:?) [ 55.091744][ T349] ? 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) [ 55.091748][ T349] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 55.091754][ T349] ? 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) [ 55.091759][ T349] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 55.091764][ T349] ? exit_notify (kernel/exit.c:780) [ 55.091767][ T349] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 55.091771][ T349] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.091778][ T349] do_group_exit (kernel/exit.c:1151) [ 55.091784][ T349] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 55.091788][ T349] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 55.091792][ T349] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 55.091797][ T349] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 55.091802][ T349] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 55.091806][ T349] RIP: 0033:0x7f9bc270d1b8 [ 55.091809][ T349] Code: Unable to access opcode bytes at 0x7f9bc270d18e. Code starting with the faulting instruction =========================================== [ 55.091810][ T349] RSP: 002b:00007ffce82a0e08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.091814][ T349] RAX: ffffffffffffffda RBX: 00007f9bc283df88 RCX: 00007f9bc270d1b8 [ 55.091816][ T349] RDX: 00007f9bc2535708 RSI: ffffffffffffff90 RDI: 0000000000000001 [ 55.091818][ T349] RBP: 00007ffce82a0e60 R08: 0000000000000000 R09: 0000000000000001 [ 55.091820][ T349] R10: 00007f9bc2bf73f5 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print