* [REGRESSION 5.0.x] Windows XP broken on KVM
@ 2019-04-18 7:38 Takashi Iwai
2019-04-18 7:53 ` Greg Kroah-Hartman
` (2 more replies)
0 siblings, 3 replies; 11+ messages in thread
From: Takashi Iwai @ 2019-04-18 7:38 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Paolo Bonzini, Sean Christopherson, Jiri Slaby, linux-kernel
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.
thanks,
Takashi
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
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 21:49 ` Harald Arnesen
2019-04-18 7:56 ` Paolo Bonzini
2019-04-18 21:59 ` Harald Arnesen
2 siblings, 2 replies; 11+ messages in thread
From: Greg Kroah-Hartman @ 2019-04-18 7:53 UTC (permalink / raw)
To: Takashi Iwai; +Cc: Paolo Bonzini, Sean Christopherson, Jiri Slaby, linux-kernel
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?
Those KVM tests being integrated by Linaro into the stable testing
process can't come fast enough, I was told yesterday that they would be
in there "soon"...
thanks,
greg k-h
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
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 7:56 ` Paolo Bonzini
2019-04-23 20:23 ` Greg Kroah-Hartman
2019-04-18 21:59 ` Harald Arnesen
2 siblings, 1 reply; 11+ messages in thread
From: Paolo Bonzini @ 2019-04-18 7:56 UTC (permalink / raw)
To: Takashi Iwai, Greg Kroah-Hartman
Cc: Sean Christopherson, Jiri Slaby, linux-kernel
On 18/04/19 09:38, 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.
No, it's the first time I hear this and I actually test Windows XP
before every pull request I send to Linus... I'll download 5.0.x and
test it there.
Paolo
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
2019-04-18 7:53 ` Greg Kroah-Hartman
@ 2019-04-18 8:05 ` Takashi Iwai
2019-04-18 23:31 ` Sean Christopherson
` (2 more replies)
2019-04-18 21:49 ` Harald Arnesen
1 sibling, 3 replies; 11+ messages in thread
From: Takashi Iwai @ 2019-04-18 8:05 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Paolo Bonzini, Sean Christopherson, Jiri Slaby, linux-kernel
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.
thanks,
Takashi
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
2019-04-18 7:53 ` Greg Kroah-Hartman
2019-04-18 8:05 ` Takashi Iwai
@ 2019-04-18 21:49 ` Harald Arnesen
1 sibling, 0 replies; 11+ messages in thread
From: Harald Arnesen @ 2019-04-18 21:49 UTC (permalink / raw)
To: Greg Kroah-Hartman, Takashi Iwai
Cc: Paolo Bonzini, Sean Christopherson, Jiri Slaby, linux-kernel
Greg Kroah-Hartman [18.04.2019 09:53]:
> 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?
My previously installed Windows XP boots and runs fine in 5.1-rc5.
--
Hilsen Harald
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
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 7:56 ` Paolo Bonzini
@ 2019-04-18 21:59 ` Harald Arnesen
2 siblings, 0 replies; 11+ messages in thread
From: Harald Arnesen @ 2019-04-18 21:59 UTC (permalink / raw)
To: Takashi Iwai, Greg Kroah-Hartman
Cc: Paolo Bonzini, Sean Christopherson, Jiri Slaby, linux-kernel
Takashi Iwai [18.04.2019 09:38]:
> 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.
Not for all configurations. I just checked with 5.0.8, and Windows XP
boots just fine on KVM.
--
Hilsen Harald
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
2019-04-18 8:05 ` Takashi Iwai
@ 2019-04-18 23:31 ` Sean Christopherson
2019-04-23 20:28 ` Takashi Iwai
2019-04-26 8:17 ` Paolo Bonzini
2 siblings, 0 replies; 11+ messages in thread
From: Sean Christopherson @ 2019-04-18 23:31 UTC (permalink / raw)
To: Takashi Iwai; +Cc: Greg Kroah-Hartman, Paolo Bonzini, Jiri Slaby, linux-kernel
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?
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
2019-04-18 7:56 ` Paolo Bonzini
@ 2019-04-23 20:23 ` Greg Kroah-Hartman
2019-04-24 0:18 ` Sean Christopherson
0 siblings, 1 reply; 11+ messages in thread
From: Greg Kroah-Hartman @ 2019-04-23 20:23 UTC (permalink / raw)
To: Paolo Bonzini; +Cc: Takashi Iwai, Sean Christopherson, Jiri Slaby, linux-kernel
On Thu, Apr 18, 2019 at 09:56:02AM +0200, Paolo Bonzini wrote:
> On 18/04/19 09:38, 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.
>
> No, it's the first time I hear this and I actually test Windows XP
> before every pull request I send to Linus... I'll download 5.0.x and
> test it there.
Any further ideas about this?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
2019-04-18 8:05 ` Takashi Iwai
2019-04-18 23:31 ` Sean Christopherson
@ 2019-04-23 20:28 ` Takashi Iwai
2019-04-26 8:17 ` Paolo Bonzini
2 siblings, 0 replies; 11+ messages in thread
From: Takashi Iwai @ 2019-04-23 20:28 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Paolo Bonzini, Sean Christopherson, Jiri Slaby, linux-kernel
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
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
2019-04-23 20:23 ` Greg Kroah-Hartman
@ 2019-04-24 0:18 ` Sean Christopherson
0 siblings, 0 replies; 11+ messages in thread
From: Sean Christopherson @ 2019-04-24 0:18 UTC (permalink / raw)
To: Greg Kroah-Hartman; +Cc: Paolo Bonzini, Takashi Iwai, Jiri Slaby, linux-kernel
On Tue, Apr 23, 2019 at 10:23:17PM +0200, Greg Kroah-Hartman wrote:
> On Thu, Apr 18, 2019 at 09:56:02AM +0200, Paolo Bonzini wrote:
> > On 18/04/19 09:38, 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.
> >
> > No, it's the first time I hear this and I actually test Windows XP
> > before every pull request I send to Linus... I'll download 5.0.x and
> > test it there.
>
> Any further ideas about this?
I followed up on the bugzilla to request more information. My best guess
at this point is that the issue is related to an older version of Qemu or
a specific emulated device, but without additional details we're stuck.
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [REGRESSION 5.0.x] Windows XP broken on KVM
2019-04-18 8:05 ` Takashi Iwai
2019-04-18 23:31 ` Sean Christopherson
2019-04-23 20:28 ` Takashi Iwai
@ 2019-04-26 8:17 ` Paolo Bonzini
2 siblings, 0 replies; 11+ messages in thread
From: Paolo Bonzini @ 2019-04-26 8:17 UTC (permalink / raw)
To: Takashi Iwai, Greg Kroah-Hartman
Cc: Sean Christopherson, Jiri Slaby, linux-kernel
On 18/04/19 10:05, 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.
Back from vacation. I'll try AMD, that's the most likely culprit.
Paolo
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2019-04-26 8:17 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
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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
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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