linux-kernel - Re: [BUG] hard lockup on AMD server

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Message-ID: <20150520082848.GF26714@krava.redhat.com>
Date:	Wed, 20 May 2015 10:28:48 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	lkml <linux-kernel@...r.kernel.org>, x86@...nel.org,
	Robert Richter <rric@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [BUG] hard lockup on AMD server

On Wed, May 13, 2015 at 03:27:19PM +0200, Jiri Olsa wrote:
> On Wed, May 13, 2015 at 03:20:22PM +0200, Borislav Petkov wrote:
> > On Wed, May 13, 2015 at 03:11:46PM +0200, Jiri Olsa wrote:
> > > hi,
> > > I'm constantly getting hard lockups on single AMD server
> > > triggered just by kernel build.. make -j65
> > > 
> > > I cannot reproduce on any other server, so I think this might
> > > be HW issue.. it's vanilla kernel v4.0 server with 64 CPUs:
> > > 
> > > processor       : 63
> > > vendor_id       : AuthenticAMD
> > > cpu family      : 21
> > > model           : 2
> > > model name      : AMD Eng Sample, ZS258045TGG54_34/25/20_2/16
> > 
> > Yeah, first try reproducing that on an officially released CPU, not on
> > an engineering sample.
> 
> yea.. I don't see it anywhere else
> 
> just wanted to run it throught more eyes before I close it as HW issue ;-)

cured by latest microcode update.. sry for the noise

jirka
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