From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Jan Beulich <JBeulich@novell.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
xen-devel@lists.xensource.com, andrew.thomas@oracle.com,
Ian Campbell <Ian.Campbell@eu.citrix.com>,
keir.xen@gmail.com, swente@infinitumb.de,
gianni.tedesco@citrix.com
Subject: Re: L1[0x1fb] = 0000000000000000 which faults on one type of machine but on another works?
Date: Thu, 17 Mar 2011 12:12:16 -0400 [thread overview]
Message-ID: <20110317161216.GB15417@dumpdata.com> (raw)
In-Reply-To: <20110317155211.GA29603@dumpdata.com>
On Thu, Mar 17, 2011 at 11:52:12AM -0400, Konrad Rzeszutek Wilk wrote:
> On Thu, Mar 17, 2011 at 10:25:11AM +0000, Jan Beulich wrote:
> > >>> On 16.03.11 at 23:19, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
> > > But one thing I can't understand is why on one machine (IBM x3850)
> > > I get this crash, while another one with the same pagetable contents
> > > (L1 has nothing for 0x1fb) it works just fine? I added a panic and used
> > > the Xen hypervisor kdb to manually inspect the pagetable, and it has
> > > the same contents as the IBM x3850 -but it boots fine with this invalid
> > > value.
> > > Any ideas?
> >
> > Without seeing the full stack trace it's hard to tell. To me, it looks
> > like a mistake for native_apic_read() to be called at all under Xen,
> > and perhaps there's one lurking somewhere that gets hit only on
> > those IBM (Summit?) machines.
>
> That was it. When we bootup we call 'set_xen_basic_apic_ops' which
Forgot to mention it but thank you for steering me in the right direction!
The patches are in
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git for-2.6.32/bug-fixes
next prev parent reply other threads:[~2011-03-17 16:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-16 22:19 L1[0x1fb] = 0000000000000000 which faults on one type of machine but on another works? Konrad Rzeszutek Wilk
2011-03-16 22:32 ` Keir Fraser
2011-03-17 10:25 ` Jan Beulich
2011-03-17 15:52 ` Konrad Rzeszutek Wilk
2011-03-17 16:12 ` Konrad Rzeszutek Wilk [this message]
2011-03-17 16:12 ` Jan Beulich
2011-03-17 16:41 ` Konrad Rzeszutek Wilk
2011-03-17 17:21 ` Jeremy Fitzhardinge
2011-03-17 19:56 ` [PATCH] xen/apic: Provide an 'apic_xen' to set the override the apic->[read|write] for all cases Konrad Rzeszutek Wilk
2011-03-22 13:10 ` L1[0x1fb] = 0000000000000000 which faults on one type of machine but on another works? Gianni Tedesco
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