From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Jan Beulich <JBeulich@novell.com>, MaoXiaoyun <tinnycloud@hotmail.com>
Cc: xen devel <xen-devel@lists.xensource.com>
Subject: Re: Xen-unstable panic: FATAL PAGE FAULT
Date: Wed, 1 Sep 2010 10:28:49 +0100 [thread overview]
Message-ID: <C8A3DB61.21A1C%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <4C7E32A50200007800013A3F@vpn.id2.novell.com>
On 01/09/2010 10:01, "Jan Beulich" <JBeulich@novell.com> wrote:
>>>> On 01.09.10 at 10:49, Keir Fraser <keir.fraser@eu.citrix.com> wrote:
>> Okay, my next guess then is that we are deleting a chunk from the wrong list
>> head. I don't see any check that the adjacent chunks we are considering to
>> merge are from the same node and zone. I suppose the zone logic does just
>> work as we're dealing with 2**x aligned and sized regions. But, shouldn't
>> the merging logic in free_heap_pages be checking that the merging candidate
>> is from the same NUMA node? I see I have an ASSERTion later in the same
>> function, but it's too weak and wishful I suspect.
>
> Hmm, we're keeping a page reserved if node boundaries aren't
> well aligned (at the end of init_heap_pages()), so that shouldn't
> be possible.
Oh yes, that ought to be sufficient really.
-- Keir
next prev parent reply other threads:[~2010-09-01 9:28 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <SNT0-MC2-F12iKC1rdi000797d9@snt0-mc2-f12.Snt0.hotmail.com>
2010-08-26 4:49 ` Re:Re: Xen-unstable panic: FATAL PAGE FAULT MaoXiaoyun
2010-08-26 7:39 ` Keir Fraser
2010-08-26 8:59 ` MaoXiaoyun
2010-08-26 9:11 ` Keir Fraser
2010-08-30 8:47 ` MaoXiaoyun
2010-08-30 9:02 ` Keir Fraser
2010-08-30 13:03 ` MaoXiaoyun
2010-08-30 13:16 ` Keir Fraser
2010-08-31 13:49 ` MaoXiaoyun
2010-08-31 14:49 ` Keir Fraser
2010-08-31 15:00 ` Keir Fraser
2010-08-31 15:07 ` Jan Beulich
2010-08-31 16:01 ` Keir Fraser
2010-08-31 16:22 ` Jan Beulich
2010-08-31 16:35 ` Keir Fraser
2010-08-31 17:03 ` Keir Fraser
2010-09-01 7:17 ` MaoXiaoyun
2010-09-01 7:40 ` Keir Fraser
2010-09-01 8:05 ` Jan Beulich
2010-09-01 8:32 ` MaoXiaoyun
2010-09-01 8:02 ` Jan Beulich
2010-09-01 8:49 ` Keir Fraser
2010-09-01 9:01 ` Jan Beulich
2010-09-01 9:28 ` Keir Fraser [this message]
2010-09-01 9:48 ` MaoXiaoyun
2010-09-01 10:09 ` Jan Beulich
2010-09-01 9:06 ` MaoXiaoyun
2010-09-01 9:23 ` MaoXiaoyun
2010-09-01 9:58 ` Keir Fraser
2010-09-01 10:21 ` MaoXiaoyun
2010-09-01 10:25 ` Keir Fraser
2010-09-01 10:28 ` Keir Fraser
2010-09-01 10:34 ` Jan Beulich
2010-09-01 11:32 ` MaoXiaoyun
2010-09-01 7:54 ` Jan Beulich
2010-09-01 3:17 ` MaoXiaoyun
2010-02-06 22:56 Mark Hurenkamp
2010-02-07 11:56 ` Keir Fraser
2010-04-30 20:52 ` Bastian Blank
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