From: Ian Campbell <Ian.Campbell@citrix.com>
To: "Liu, SongtaoX" <songtaox.liu@intel.com>
Cc: "Tian, Kevin" <kevin.tian@intel.com>,
"keir@xen.org" <keir@xen.org>,
"Nakajima, Jun" <jun.nakajima@intel.com>,
"tim@xen.org" <tim@xen.org>, "Dong, Eddie" <eddie.dong@intel.com>,
Jan Beulich <jbeulich@suse.com>,
"Hu, Robert" <robert.hu@intel.com>,
"Zhang, Yang Z" <yang.z.zhang@intel.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
"Pang, LongtaoX" <longtaox.pang@intel.com>
Subject: Re: [PATCH] x86/EPT: flush cache when (potentially) limiting cachability
Date: Thu, 12 Jun 2014 09:43:25 +0100 [thread overview]
Message-ID: <1402562605.4342.16.camel@kazak.uk.xensource.com> (raw)
In-Reply-To: <582FB90AB890394081254B69739046FC0EAD474D@SHSMSX101.ccr.corp.intel.com>
On Thu, 2014-06-12 at 01:28 +0000, Liu, SongtaoX wrote:
>
> > -----Original Message-----
> > From: Jan Beulich [mailto:jbeulich@suse.com]
> > Sent: Friday, May 30, 2014 7:20 PM
> > To: Liu, SongtaoX; xen-devel@lists.xenproject.org
> > Cc: Dong, Eddie; Nakajima, Jun; Tian, Kevin; Pang, LongtaoX; Hu, Robert; Zhang,
> > Yang Z; keir@xen.org; tim@xen.org
> > Subject: Re: RE: [Xen-devel] [PATCH] x86/EPT: flush cache when (potentially)
> > limiting cachability
> >
> > >>> "Liu, SongtaoX" <songtaox.liu@intel.com> 05/30/14 9:35 AM >>>
> > >Sorry to update.
> > >The bug refers to
> > http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1887.
> > >L2 guest vnc console hangs at black screen with cursor flashing at the top left
> > corner.
> > >After several minutes, the Seabios screen shows up, but the screen still flush
> > slowly, the guest could not boot up.
> >
> > That would then indeed be an indication of excessive flushes. I.e. you may want
> > to simply track down which one (and why) gets triggered too often.
> >
> How to get that information? It is hard for me to do it since I am not
> a Xen expert. But if you can provide a patch help to debug, I would
> happy to do it.
Is this the sort of thing for which xentrace and xenalyze could be
useful?
next prev parent reply other threads:[~2014-06-12 8:43 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-25 12:13 [PATCH] x86/EPT: flush cache when (potentially) limiting cachability Jan Beulich
2014-05-01 13:39 ` Tim Deegan
2014-05-30 2:07 ` Liu, SongtaoX
2014-05-30 6:26 ` Jan Beulich
2014-05-30 7:02 ` Jan Beulich
2014-05-30 7:34 ` Liu, SongtaoX
2014-05-30 11:20 ` Jan Beulich
2014-06-12 1:28 ` Liu, SongtaoX
2014-06-12 8:43 ` Ian Campbell [this message]
2014-06-16 13:01 ` Jan Beulich
2014-06-17 2:19 ` Liu, SongtaoX
2014-06-17 7:11 ` Jan Beulich
2014-06-17 8:33 ` Liu, SongtaoX
2014-06-17 15:34 ` Jan Beulich
2014-06-18 3:09 ` Liu, SongtaoX
2014-06-18 10:02 ` Jan Beulich
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