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Re: [Qemu-devel] [Bug 891002] [NEW] windows mingw compiled qemu-system-x
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [Bug 891002] [NEW] windows mingw compiled qemu-system-x86_64 crash on startup |
Date: |
Wed, 16 Nov 2011 12:00:21 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:7.0) Gecko/20110927 Thunderbird/7.0 |
Am 16.11.2011 11:35, schrieb Stefan Hajnoczi:
> On Wed, Nov 16, 2011 at 7:01 AM, humeafo <address@hidden> wrote:
>> Public bug reported:
>>
>> qemu-1.0-rc2/cpu-exec.c:37 longjmp(env->jmp_env, 1); it seems that
>> env->jmp_env destroyed, (gdb) p env->jmp_env
>> $3 = {0, 0, 0, 36249608, 41418280, 5303318, 41418664, 0, 0, 0, 0, 0, 0, 0,
>> 0, 0}
>
> Kevin: Is this similar to the issue you found with your mingw cross-compiler?
The symptoms were different. I didn't get a broken TCG state but some
internals of the Fiber used for coroutines must have been corrupted
(SwitchFiber() crashed when dereferencing a null pointer, but the
externally visible pointer that qemu passed to it was still ok).
Maybe both could be symptoms of the same kind of memory corruption.
Kevin
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