| To: | Josh Green <jgreen@users.sourceforge.net> |
|---|---|
| Subject: | Re: iptables/vmalloc issues on alchemy |
| From: | Dan Malek <dan@embeddededge.com> |
| Date: | Wed, 27 Apr 2005 15:06:00 -0400 |
| Cc: | linux-mips@linux-mips.org, Pete Popov <ppopov@embeddedalley.com>, Herbert Valerio Riedel <hvr@hvrlab.org> |
| In-reply-to: | <1114627785.17008.21.camel@SillyPuddy.localdomain> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <1114505009.11315.37.camel@mini.intra> <1114627785.17008.21.camel@SillyPuddy.localdomain> |
| Sender: | linux-mips-bounce@linux-mips.org |
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
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