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SubjectRe: Broken commit: [NETFILTER]: ipt_REJECT: remove largely duplicate route_reverse function
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Patrick McHardy <kaber@trash.net> writes:

>> The following commit breaks ipt_REJECT on my machine. Tested with latest
>> 2.6.19rc*, found with git-bisect. i386, gcc-4.1.1, the usual stuff.
>> All details available on request, of course.
>>
>> commit 9d02002d2dc2c7423e5891b97727fde4d667adf1
>
> How sure are you about this? I can see nothing wrong with that
> commit and can't reproduce the slab corruption. Please post
> the rule that triggers this.

99% sure. Past this commit I get corruptions after 5 minutes at most
(that's ADSL with USB Thomson/Alcatel Speedtouch -> PPP over ATM,
with a GRE tunnel over that PPP).
I'm now running 901eaf6c8f997f18ebc8fcbb85411c79161ab3b2 (i.e. the
last commit before the one in question) for 4 hours and nothing like
that.

Not sure about the exact rule, but the most probable candidates are:
-A INPUT -p tcp --tcp-flags SYN,RST,ACK SYN -j REJECT --reject-with tcp-reset
-A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable

Other "REJECT" rules haven't fired yet.

Could be some obscure problem with GRE/Speedtouch/PPP over ATM,
triggered by this patch, though.

Perhaps I can do some experiments - just say a word.
--
Krzysztof Halasa
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