tags 578396 + moreinfo
thanks
19.04.2010 19:20, Gary Dale wrote:
Package: qemu-kvm
Version: 0.12.3+dfsg-4
Severity: normal
This is weird. I found it necessary to reinstall Debian/Squeeze. This
shouldn't have affected my Windows XP/Pro VM since it was in my home
directory. However, after reinstalling, Pinnacle Studio 9.4.3 doesn't
build DVDs anymore. The program doesn't fail. It completes normally but
the VIDEO_TS directory doesn't have all the files it should for a
complete DVD.
Windows Explorer shows the intermediate files correctly but consistently
crashes when in that directory. I note that the .m2v files play
correctly, as do the (partial) .vob files in the VIDEO_TS folder.
Windows Explorer also runs very slowly when I'm looking at those
directories. This suggested that a file system corruption may be the
problem, but Windows chkdsk doesn't report any problems (NTFS file
system in a .qcow file).
Ok. Can you please re-create the .qcow file and see if that helps?
Like this:
kvm-img convert -O qcow2 windows.qcow windows2.qcow
and see (after chkdsk run and re-creating the directory in
question) if that fixes your problem?
Also, verify that you have enough free space on the filesystem
where your qcow file is.
Another useful test is to check if raw format works. Do
the same kvm-img convert but now with -O raw (it's the
default btw).
There were a few bugs in qcow2 format handler fixed during
evolution of qemu/kvm, and some of these bugs lead to some
corruption which can't be easily repaired even after the
bugs are fixed. Overall, it is usually better (and faster
too) to use raw image instead of qcow2.
So far, the bug information is too vague to be of any use.
It might be just due to some bug in the Pinacle Studio
after all, or somewhere in windows XP - and upgrading of
kvm just triggered that bug...
I'm not saying it's definitely the case, but am trying to
show that the number of possibilities is quite high. And
the most likely cause is the bugs in qcow handler, which
probably aren't part of qemu-kvm anymore.
Also, you can try older kvm packages to see if your prob
is still here.
Thanks!
/mjt
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