From: "Jan Beulich" <JBeulich@novell.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.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 10:25:11 +0000 [thread overview]
Message-ID: <4D81EF97020000780003706E@vpn.id2.novell.com> (raw)
In-Reply-To: <20110316221912.GA13035@dumpdata.com>
>>> 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.
Jan
next prev parent reply other threads:[~2011-03-17 10:25 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 [this message]
2011-03-17 15:52 ` Konrad Rzeszutek Wilk
2011-03-17 16:12 ` Konrad Rzeszutek Wilk
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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