From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Paolo Bonzini <pbonzini@redhat.com>, Jiri Slaby <jslaby@suse.cz>,
linux-kernel@vger.kernel.org
Subject: Re: [REGRESSION 5.0.x] Windows XP broken on KVM
Date: Thu, 18 Apr 2019 16:31:20 -0700 [thread overview]
Message-ID: <20190418233119.GF17218@linux.intel.com> (raw)
In-Reply-To: <s5hr29zpwkx.wl-tiwai@suse.de>
On Thu, Apr 18, 2019 at 10:05:34AM +0200, Takashi Iwai wrote:
> On Thu, 18 Apr 2019 09:53:28 +0200,
> Greg Kroah-Hartman wrote:
> >
> > On Thu, Apr 18, 2019 at 09:38:52AM +0200, Takashi Iwai wrote:
> > > Hi,
> > >
> > > we've got a regression report on the recent 5.0.x kernel, starting
> > > from 5.0.6, where Windows XP can't boot on KVM any longer.
> > >
> > > The culprit seems to be the patch
> > > KVM: x86: update %rip after emulating IO
> > > with the upstream commit 45def77ebf79e2e8942b89ed79294d97ce914fa0.
> > > Reverting this alone fixed the problem.
> > >
> > > The report is found at openSUSE bugzilla:
> > > https://bugzilla.suse.com/show_bug.cgi?id=1132694
> > >
> > > Is there already a followup fix? If not, we need to revert it from
> > > stable, at least.
> >
> > Is this also a problem in 5.1-rc5?
>
> Only 5.0.x has been tested, so far.
> I'll ask the reporter to try 5.1-rc if Paolo can't reproduce the
> problem in his side.
I'd be surprised if 5.1-rc* changes anything relative to 5.0.x, the
commit in question is fairly isolated and specific.
Can we get the Qemu version and command line that is being run?
next prev parent reply other threads:[~2019-04-18 23:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-18 7:38 [REGRESSION 5.0.x] Windows XP broken on KVM Takashi Iwai
2019-04-18 7:53 ` Greg Kroah-Hartman
2019-04-18 8:05 ` Takashi Iwai
2019-04-18 23:31 ` Sean Christopherson [this message]
2019-04-23 20:28 ` Takashi Iwai
2019-04-26 8:17 ` Paolo Bonzini
2019-04-18 21:49 ` Harald Arnesen
2019-04-18 7:56 ` Paolo Bonzini
2019-04-23 20:23 ` Greg Kroah-Hartman
2019-04-24 0:18 ` Sean Christopherson
2019-04-18 21:59 ` Harald Arnesen
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