Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-16 Thread Ingo Molnar
* Borislav Petkov wrote: > On Tue, Apr 16, 2013 at 11:25:28AM +0200, Ingo Molnar wrote: > > I've got limited extra capacity right now - but if Peter rebases > > tip:x86/cpu or you send a pullable update of tip:x86/cpu I can stick > > it into -tip testing and yell if it goes wrong. > > > > Ok,

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-16 Thread Borislav Petkov
On Tue, Apr 16, 2013 at 11:25:28AM +0200, Ingo Molnar wrote: > I've got limited extra capacity right now - but if Peter rebases > tip:x86/cpu or you send a pullable update of tip:x86/cpu I can stick > it into -tip testing and yell if it goes wrong. > Ok, I'll do that in a second. Btw, another

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-16 Thread Ingo Molnar
* Borislav Petkov wrote: > On Mon, Apr 15, 2013 at 05:54:15PM +0200, Borislav Petkov wrote: > > On Mon, Apr 15, 2013 at 12:18:25PM +0200, Ingo Molnar wrote: > > > It was tip:master with x86/cpu merged in freshly. > > > > Ok, some more observations. I can trigger some oops similar yours (I > >

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-16 Thread Ingo Molnar
* Borislav Petkov b...@alien8.de wrote: On Mon, Apr 15, 2013 at 05:54:15PM +0200, Borislav Petkov wrote: On Mon, Apr 15, 2013 at 12:18:25PM +0200, Ingo Molnar wrote: It was tip:master with x86/cpu merged in freshly. Ok, some more observations. I can trigger some oops similar yours (I

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-16 Thread Borislav Petkov
On Tue, Apr 16, 2013 at 11:25:28AM +0200, Ingo Molnar wrote: I've got limited extra capacity right now - but if Peter rebases tip:x86/cpu or you send a pullable update of tip:x86/cpu I can stick it into -tip testing and yell if it goes wrong. Ok, I'll do that in a second. Btw, another

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-16 Thread Ingo Molnar
* Borislav Petkov b...@alien8.de wrote: On Tue, Apr 16, 2013 at 11:25:28AM +0200, Ingo Molnar wrote: I've got limited extra capacity right now - but if Peter rebases tip:x86/cpu or you send a pullable update of tip:x86/cpu I can stick it into -tip testing and yell if it goes wrong.

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Borislav Petkov
On Mon, Apr 15, 2013 at 05:54:15PM +0200, Borislav Petkov wrote: > On Mon, Apr 15, 2013 at 12:18:25PM +0200, Ingo Molnar wrote: > > It was tip:master with x86/cpu merged in freshly. > > Ok, some more observations. I can trigger some oops similar yours (I > haven't caught mine yet over serial or

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Borislav Petkov
On Mon, Apr 15, 2013 at 12:18:25PM +0200, Ingo Molnar wrote: > It was tip:master with x86/cpu merged in freshly. Ok, some more observations. I can trigger some oops similar yours (I haven't caught mine yet over serial or such) with latest tip/master + tip:x86/cpu. When I remove tip:x86/cpu, the

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Ingo Molnar
* Borislav Petkov wrote: > On Mon, Apr 15, 2013 at 12:08:58PM +0200, Ingo Molnar wrote: > > It gave me the impression of memory corruption - but impressions can > > deceive ;-) > > > > Anyway, not sure I can test/bisect it this week - merge window > > preparations and all that. > > Ok, and

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Borislav Petkov
On Mon, Apr 15, 2013 at 12:08:58PM +0200, Ingo Molnar wrote: > It gave me the impression of memory corruption - but impressions can > deceive ;-) > > Anyway, not sure I can test/bisect it this week - merge window > preparations and all that. Ok, and also, in your oops, it said 3.9.0-rc6+ but

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Ingo Molnar
* Borislav Petkov wrote: > And 0x3f76 + 0x104 gives exactly 0x407a which is the address at > which we #PF: > > [ 15.921486] BUG: unable to handle kernel paging request at 407a > [ 15.921486] IP: [<41071ab0>] __lock_acquire.isra.19+0x3e0/0xb00 > > More hmmm... It gave me the

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Ingo Molnar
* Borislav Petkov b...@alien8.de wrote: And 0x3f76 + 0x104 gives exactly 0x407a which is the address at which we #PF: [ 15.921486] BUG: unable to handle kernel paging request at 407a [ 15.921486] IP: [41071ab0] __lock_acquire.isra.19+0x3e0/0xb00 More hmmm... It gave me

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Borislav Petkov
On Mon, Apr 15, 2013 at 12:08:58PM +0200, Ingo Molnar wrote: It gave me the impression of memory corruption - but impressions can deceive ;-) Anyway, not sure I can test/bisect it this week - merge window preparations and all that. Ok, and also, in your oops, it said 3.9.0-rc6+ but

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Ingo Molnar
* Borislav Petkov b...@alien8.de wrote: On Mon, Apr 15, 2013 at 12:08:58PM +0200, Ingo Molnar wrote: It gave me the impression of memory corruption - but impressions can deceive ;-) Anyway, not sure I can test/bisect it this week - merge window preparations and all that. Ok, and

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Borislav Petkov
On Mon, Apr 15, 2013 at 12:18:25PM +0200, Ingo Molnar wrote: It was tip:master with x86/cpu merged in freshly. Ok, some more observations. I can trigger some oops similar yours (I haven't caught mine yet over serial or such) with latest tip/master + tip:x86/cpu. When I remove tip:x86/cpu, the

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-15 Thread Borislav Petkov
On Mon, Apr 15, 2013 at 05:54:15PM +0200, Borislav Petkov wrote: On Mon, Apr 15, 2013 at 12:18:25PM +0200, Ingo Molnar wrote: It was tip:master with x86/cpu merged in freshly. Ok, some more observations. I can trigger some oops similar yours (I haven't caught mine yet over serial or such)

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-12 Thread Borislav Petkov
On Fri, Apr 12, 2013 at 11:47:24AM +0200, Borislav Petkov wrote: > On Thu, Apr 11, 2013 at 10:34:48PM -0700, H. Peter Anvin wrote: > > >The lockup went away after excluding x86/cpu. I'll try more testing > > >as time permits. > > Right, > > so tip:x86/cpu has all in all 11 patches. Maybe a quick

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-12 Thread Borislav Petkov
On Thu, Apr 11, 2013 at 10:34:48PM -0700, H. Peter Anvin wrote: > >The lockup went away after excluding x86/cpu. I'll try more testing > >as time permits. Right, so tip:x86/cpu has all in all 11 patches. Maybe a quick bisect? Thanks. -- Regards/Gruss, Boris. Sent from a fat crate under

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-12 Thread Borislav Petkov
On Thu, Apr 11, 2013 at 10:34:48PM -0700, H. Peter Anvin wrote: The lockup went away after excluding x86/cpu. I'll try more testing as time permits. Right, so tip:x86/cpu has all in all 11 patches. Maybe a quick bisect? Thanks. -- Regards/Gruss, Boris. Sent from a fat crate under my

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-12 Thread Borislav Petkov
On Fri, Apr 12, 2013 at 11:47:24AM +0200, Borislav Petkov wrote: On Thu, Apr 11, 2013 at 10:34:48PM -0700, H. Peter Anvin wrote: The lockup went away after excluding x86/cpu. I'll try more testing as time permits. Right, so tip:x86/cpu has all in all 11 patches. Maybe a quick bisect?

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread H. Peter Anvin
I used to have one of these but have it away when cleaning out my study... no space. Ingo Molnar wrote: > >* Borislav Petkov wrote: > >> On Thu, Apr 11, 2013 at 12:26:09PM -0700, H. Peter Anvin wrote: >> > What host is this? >> >> Judging by the DMI string in the oops: >> >> > [

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread Ingo Molnar
* Borislav Petkov wrote: > On Thu, Apr 11, 2013 at 12:26:09PM -0700, H. Peter Anvin wrote: > > What host is this? > > Judging by the DMI string in the oops: > > > [ 15.921486] Pid: 73, comm: hwclock Tainted: GW3.9.0-rc6+ > > #222032 System manufacturer System Product Name/A8N-E

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread Borislav Petkov
On Thu, Apr 11, 2013 at 12:26:09PM -0700, H. Peter Anvin wrote: > What host is this? Judging by the DMI string in the oops: > [ 15.921486] Pid: 73, comm: hwclock Tainted: GW3.9.0-rc6+ > #222032 System manufacturer System Product Name/A8N-E it is an ASUS board with a K8 on it -

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread H. Peter Anvin
On 04/11/2013 05:09 AM, Ingo Molnar wrote: > > Even with this applied, the attached config is still unhappy and > crashes/locks up > during user-space init, see the crashlog attached below. > > The config has MATH_EMULATION=y, so I suspect it's the same problem category. > What host is

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread Borislav Petkov
On Thu, Apr 11, 2013 at 02:09:52PM +0200, Ingo Molnar wrote: > Even with this applied, the attached config is still unhappy and > crashes/locks up during user-space init, see the crashlog attached > below. > > The config has MATH_EMULATION=y, so I suspect it's the same problem > category. > >

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread Borislav Petkov
On Thu, Apr 11, 2013 at 02:09:52PM +0200, Ingo Molnar wrote: Even with this applied, the attached config is still unhappy and crashes/locks up during user-space init, see the crashlog attached below. The config has MATH_EMULATION=y, so I suspect it's the same problem category. (I'll keep

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread H. Peter Anvin
On 04/11/2013 05:09 AM, Ingo Molnar wrote: Even with this applied, the attached config is still unhappy and crashes/locks up during user-space init, see the crashlog attached below. The config has MATH_EMULATION=y, so I suspect it's the same problem category. What host is this?

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread Borislav Petkov
On Thu, Apr 11, 2013 at 12:26:09PM -0700, H. Peter Anvin wrote: What host is this? Judging by the DMI string in the oops: [ 15.921486] Pid: 73, comm: hwclock Tainted: GW3.9.0-rc6+ #222032 System manufacturer System Product Name/A8N-E it is an ASUS board with a K8 on it -

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread Ingo Molnar
* Borislav Petkov b...@alien8.de wrote: On Thu, Apr 11, 2013 at 12:26:09PM -0700, H. Peter Anvin wrote: What host is this? Judging by the DMI string in the oops: [ 15.921486] Pid: 73, comm: hwclock Tainted: GW3.9.0-rc6+ #222032 System manufacturer System Product

Re: [PATCH] x86, FPU: Fix FPU initialization

2013-04-11 Thread H. Peter Anvin
I used to have one of these but have it away when cleaning out my study... no space. Ingo Molnar mi...@kernel.org wrote: * Borislav Petkov b...@alien8.de wrote: On Thu, Apr 11, 2013 at 12:26:09PM -0700, H. Peter Anvin wrote: What host is this? Judging by the DMI string in the oops:

[PATCH] x86, FPU: Fix FPU initialization

2013-04-10 Thread Borislav Petkov
t's start (oops below for > info). Ok, here's a fix which boots fine here in qemu. Ingo, it would be cool if you gave it a run to verify. Thanks. -- >From 2263430417dd8de1a5fef4b2c40127e681fdc1ab Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 10 Apr 2013 21:37:03 +0200 Subject

[PATCH] x86, FPU: Fix FPU initialization

2013-04-10 Thread Borislav Petkov
). Ok, here's a fix which boots fine here in qemu. Ingo, it would be cool if you gave it a run to verify. Thanks. -- From 2263430417dd8de1a5fef4b2c40127e681fdc1ab Mon Sep 17 00:00:00 2001 From: Borislav Petkov b...@suse.de Date: Wed, 10 Apr 2013 21:37:03 +0200 Subject: [PATCH] x86, FPU: Fix FPU