Re: [Qemu-devel] [Bug 826363] Re: qemu-img convert does not work with vdi files

[Stefan Hajnoczi]

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.

Stefan