Re: Biweekly KVM Test report, kernel 51bfd299... qemu a1fce560...

Marcelo Tosatti
2012-06-12T01:53:04Z

On Thu, Jun 07, 2012 at 01:13:50PM +0100, Stefan Hajnoczi wrote:
> >> >> The 1st bad commit in your attached list is abc551bd
> >> >> More detailed info:
> >> >> 171d2f2249a360d7d623130d3aa991418c53716d       good
> >> >> fd453a24166e36a3d376c9bc221e520e3ee425af        good
> >> >> abc551bd456cf0407fa798395d83dc5aa35f6dbb         bad
> >> >> 823ccf41509baa197dd6a3bef63837a6cf101ad8         bad
> >> >
> >> > Thanks, this points to the qcow2 v3 changes. Let's try to find the exact
> >> > culprit. I have rebased the qcow2 patches on top of that good merge
> >> > (fd453a24). Please apply the attached mbox on top of this merge:
> >> >
> >> > git checkout fd453a24
> >> > git am qcow2v3.mbox
> >> >
> >> > You can then start a git bisect between your new HEAD and fd453a24.
> >>
> >> Another thing you could try is if reverting e82dabd and bef0fd59 fixes
> >> the problem for you.
> >>
> > After reverting bef0fd59, it can work fine.
>
> I'm unable to reproduce this with qemu-kvm.git/master
> (18b012756fd041556764dfa2bb1f307b6923fb71) or the commit you
> 3fd9fedb9fae4517d93d76e93a2924559cacf2f6 reported as bad. The RHEL 6
> guest boots without any issues. My host kernel is Linux 3.2 (Debian
> 3.2.0-2-amd64). The guest is Linux 2.6.32-71.el6.
>
> Since the guest sees a disk read error, it may be useful to add
> printfs to hw/ide/core.c:ide_sector_read_cb(). Let's find out why the
> disk read is failing.

Any news on this problem?