Re: Regression caused by commit "netfilter: iptables: lock freecounters"

[David Miller]

From: Graham Murray <graham@xxxxxxxxxxxxxx>
Date: Sun, 05 Apr 2009 08:05:17 +0100

Please CC the appropriate mailing lists (as I have now) when reporting
this incredibly useful information.  The networking and netfilter
developers largely do not read linux-kernel.

> Roman Mindalev <r000n@xxxxxxxxx> writes:
> 
> > Result of the bisection:
> >
> > 784544739a25c30637397ace5489eeb6e15d7d49 is first bad commit
> > commit 784544739a25c30637397ace5489eeb6e15d7d49             
> 
> I am seeing a different problem which also bisects to this commit. There are
> no kernel messages but ip6tables fails to run.
> 
> newton ~ # ip6tables -L -v
> FATAL: Module ip6_tables not found.
> ip6tables v1.4.3.1: can't initialize ip6tables table `filter': Memory allocation problem
> Perhaps ip6tables or your kernel needs to be upgraded.
> 
> I get this error no matter which ip6tables sub-command I run. Ip6tables
> is built into the kernel, not as modules.
> 
> An strace shows the failure to be 
> socket(PF_INET6, SOCK_RAW, IPPROTO_RAW) = 3
> getsockopt(3, SOL_IPV6, 0x40 /* IPV6_??? */, "filter\0\305\0w~\300\0wb\305P\24\312\t\0009b\305\216\23\0\0\310\341/g\16"..., [84]) = 0
> brk(0)                                  = 0x8273000
> brk(0x8294000)                          = 0x8294000
> getsockopt(3, SOL_IPV6, 0x41 /* IPV6_??? */, 0x8273090, 0xbfd23628) = -1 ENOMEM (Cannot allocate memory)
> close(3)                                = 0
> 
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