Call for testing: 32-bit AMD CPU owners

[Stephen Gallagher]

On Wed, 2015-09-16 at 19:39 -0400, Fred Smith wrote:
> On Wed, Sep 16, 2015 at 06:11:47PM -0400, Stephen Gallagher wrote:
> > On Wed, 2015-09-16 at 12:08 -0700, Adam Williamson wrote:
> > > Hi, folks!
> > > 
> > > We've found an issue in Fedora 23 Beta testing which seems to
> > > affect
> > > AMD CPUs when booting the 32-bit images:
> > > 
> > > https://bugzilla.redhat.com/show_bug.cgi?id=1263762
> > > 
> > > unfortunately, so far all those who've tested have only had 64-
> > > bit
> > > CPUs. So we know there's a problem booting the 32-bit images on
> > > some
> > > 64-bit AMD CPUs, but we don't know yet if there's a problem
> > > booting
> > > the 32-bit images on 32-bit AMD CPUs, which is obviously the main
> > > reason we still keep the 32-bit images around (people with 64-bit
> > > CPUs
> > > can just use the 64-bit images).
> > 
> > 
> > One additional request: it's unclear right now (and we don't have
> > available hardware to test) if there is also a failure happening
> > on 64-
> > bit AMD systems that are running on i686 Fedora.
> > 
> > If someone out there has access to hardware that hits BZ #1263762,
> > would you please try installing Fedora 22 i686, updating to all the
> > latest stable packages, plus dnf-plugin-system-upgrade from
> > updates-
> > testing and then do an upgrade using the supported mechanism[1] and
> > verify whether A) the upgrade runs or aborts, leaving F22 present
> > and
> > B) if it completes the upgrade, is the system bootable and
> > runnable.
> > 
> > This will help us figure out how serious to rate this issue. (For
> > new
> > installs, we can probably advocate simply using the 64-bit media;
> > for
> > existing installs, irrecoverably breaking on upgrade could be a
> > show-
> > stopper).
> > 
> > [1] https://fedoraproject.org/wiki/DNF_system_upgrade
> 
> FYI, using the f23 alpha  iso: 
> Fedora-Server-DVD-i386-23_Alpha.isoFedora-Server-DVD-i386-
> 23_Alpha.iso
> 
> gives a panic message that looks very much like the one shown in 
> Bugzilla.
> 
> This is on an AMD FX6300 six-core processor.
> 
> If this hits the thing you wanted to know about, and if you need any
> more info, you need only ask.
> 

That does indeed sound like the issue we're hitting. Would you be able
to install Fedora 22 i686 on that system, update it with all the
latest packages and then run the upgrade to F23 (using the dnf-plugin-
system-upgrade from http://koji.fedoraproject.org/koji/buildinfo?buildI
D=685235  You will need dnf-plugin-system-upgrade-0.4.1-
1.fc22.noarch.rpm and python2-dnf-plugin-system-upgrade-0.4.1-
1.fc22.noarch.rpm)

That will let us know if the upgrade would break on that system.
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