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Re: [Qemu-devel] Segfault starting vcpu thread
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] Segfault starting vcpu thread |
Date: |
Wed, 11 Jul 2012 13:59:53 +0200 |
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 13:58, Avi Kivity wrote:
> On 07/11/2012 02:55 PM, Jan Kiszka wrote:
>> 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?
>
> I just merged upstream into qemu-kvm master. For some reason there were
> no conflicts.
A rare moment, I guess. ;)
>
>> Any
>> specific command line or guest?
>
> qemu-system-x86_64
Just did the same, but it's all fine here.
Jan
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