Re: [Qemu-devel] QCOW(2) image corruption under QEMU 0.9.0 reproducible

[herbie hancock <hhancock@web.de>]

Hello, i had also a reproducible disk crash:
info of the last good image, size is about 3,5GB

image: debian4_0.dsk file format: qcow2 virtual size: 16G (16777216000 bytes) disk size: 3.3G cluster_size: 4096

as soon as the image increase to a size of about 7,9 GB the emulator locks up, and after a restart the the image is not readable any more.
the start of the image is filled with zeros, the signature of the file  at the start (QFI ....)  is overwritten.

I tried it two times, started with a intact image with the size above and in both times the image was corrupted.

Host: WIN2K
Guest: Debian 4.0 Etch.
qemu: 0.90 (build date 2007-02-19, the version that comes with http://www.davereyn.co.uk/qem/setupqemuk40.exe)

I tested the image above with virtualbox (installed backup of the qemu disk with acronis trueimage and bart pe boot cd) , 
started with the above image, and the problems are gone, image is now filled with more than 9GB, no problem so far.

I never experienced such a bad problem with qemu before, maybe it is a problem with qcow2 format ?

Bye
HR
_____________________________________________________________________
Der WEB.DE SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen!
http://smartsurfer.web.de/?mc=100071&distributionid=000000000066