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Re: [Qemu-devel] Segfault starting vcpu thread
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From: |
Jan Kiszka |
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Subject: |
Re: [Qemu-devel] Segfault starting vcpu thread |
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Date: |
Wed, 11 Jul 2012 13:55:21 +0200 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2012-07-11 13:46, Avi Kivity wrote:
> Current qemu-kvm master merged with latest upstream fails on startup:
>
> (gdb) bt
> #0 0x00007fdcd4a047a0 in kvm_vcpu_ioctl (env=0x0, type=-1071075694) at
> /home/tlv/akivity/qemu/kvm-all.c:1602
> #1 0x00007fdcd49c9fda in kvm_apic_enable_tpr_reporting
> (s=0x7fdcd75af6c0, enable=false) at
> /home/tlv/akivity/qemu/hw/i386/../kvm/apic.c:107
> #2 0x00007fdcd4993d71 in flush_queued_work (env=0x7fdcd75a0c70) at
> /home/tlv/akivity/qemu/cpus.c:680
> #3 0x00007fdcd4993e23 in qemu_wait_io_event_common (env=0x7fdcd75a0c70)
> at /home/tlv/akivity/qemu/cpus.c:694
> #4 0x00007fdcd4993f61 in qemu_kvm_wait_io_event (env=0x7fdcd75a0c70) at
> /home/tlv/akivity/qemu/cpus.c:725
> #5 0x00007fdcd499408c in qemu_kvm_cpu_thread_fn (arg=0x7fdcd75a0c70) at
> /home/tlv/akivity/qemu/cpus.c:757
> #6 0x00007fdcd2e72d14 in start_thread () from /lib64/libpthread.so.0
>
> APICCommonState::cpu_env in frame 1 is NULL. I'm looking at it, but if
> you have a quick fix, all the better.
>
I will try to reproduce. Is there a tree of the merge available? Any
specific command line or guest?
Jan
--
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