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From: Dan Malek <dan@embeddededge.com>
To: Josh Green <jgreen@users.sourceforge.net>
Cc: linux-mips@linux-mips.org, Pete Popov <ppopov@embeddedalley.com>,
	Herbert Valerio Riedel <hvr@hvrlab.org>
Subject: Re: iptables/vmalloc issues on alchemy
Date: Wed, 27 Apr 2005 15:06:00 -0400	[thread overview]
Message-ID: <4bf8c757c3a4d32177ab90b92eace823@embeddededge.com> (raw)
In-Reply-To: <1114627785.17008.21.camel@SillyPuddy.localdomain>


On Apr 27, 2005, at 2:49 PM, Josh Green wrote:

> ...... I was
> planning on doing some additional gdb debugging of the failure
> (especially the initial large MMAP attempt by iptables, which was 1.5GB
> in my case).

Oh wait ....  I found a bug a while ago from someone trying to load
large modules.  There is a problem if the kernel grows to need
additional PTE tables, the top level pointers don't get propagated
correctly and subsequent access by a thread that didn't actually
do the allocation would fail.  I'm looking into this, including your
past message about 64-bit PTEs.

Thanks.


	-- Dan

  reply	other threads:[~2005-04-27 19:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-26  8:43 iptables/vmalloc issues on alchemy Herbert Valerio Riedel
2005-04-27 18:49 ` Josh Green
2005-04-27 19:06   ` Dan Malek [this message]
2005-04-28  5:06     ` Herbert Valerio Riedel
  -- strict thread matches above, loose matches on Subject: below --
2005-04-28 20:11 Christian Gan
2005-04-28 20:11 ` Christian Gan
2005-04-28 20:56 ` Dan Malek
2005-04-28 20:56   ` Dan Malek
2005-04-28 21:22 Christian Gan
2005-04-28 21:22 ` Christian Gan
2005-04-28 22:16 ` Dan Malek
2005-04-28 22:16   ` Dan Malek
2005-04-28 23:52   ` Thiemo Seufer
2005-04-28 23:16 Christian Gan
2005-04-28 23:16 ` Christian Gan

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