On Thu, 18 Apr 2019 10:05:34 +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.
The reporter confirmed that the problem is present with the latest 5.1-rc kernel, too. FWIW, it's a Ryzen system. Check the bugzilla URL above for details. thanks, Takashi
