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Re: [Qemu-devel] [Bug 826363] Re: qemu-img convert does not work with vd
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [Bug 826363] Re: qemu-img convert does not work with vdi files |
Date: |
Wed, 17 Aug 2011 17:44:16 +0100 |
On Wed, Aug 17, 2011 at 5:29 PM, Stefan Hajnoczi <address@hidden> wrote:
> On Tue, Aug 16, 2011 at 7:07 PM, Steve Si <address@hidden> wrote:
>> I got binaries from http://homepage3.nifty.com/takeda-toshiya/
>>
>> tested under Win 7 64-bit as User=Administrator
>>
>> qemu10.6 - works makes 16/08/2011 18:43 3,096,481,792 test.raw
>> qemu11.1 - works makes 16/08/2011 18:43 3,096,481,792 test.raw
>> qemu12.1 - crashes !
>> qemu12.2 - crashes !
>> qemu12.5 - error while writing
>
> I think this crash->error transition is explained by:
>
> commit 8cef921d18025b4ce4e749eed391308033fee232
> Author: TeLeMan <address@hidden>
> Date: Mon Feb 8 16:20:00 2010 +0800
>
> qemu-img: use the heap instead of the huge stack array for win32
>
> But we still don't know why you are getting the write error. It would
> be fairly easy to find that out by building QEMU from source and
> adding fprintf() where the write fails - print out the error code and
> sector number.
Here is a patch to print more information when the error occurs:
http://patchwork.ozlabs.org/patch/110338/
It applies onto qemu.git/master:
$ cd qemu
$ git am path/to/patch
$ ./configure [...] && make
Stefan
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