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Message-ID: <45A38173.9090305@trash.net> Date: Tue, 09 Jan 2007 12:50:11 +0100 From: Patrick McHardy <kaber@...sh.net> To: Bernhard Schmidt <berni@...kenwald.de> CC: netfilter-devel@...ts.netfilter.org, linux-kernel@...r.kernel.org Subject: Re: [Bug] OOPS with nf_conntrack_ipv6, probably fragmented UDPv6 Bernhard Schmidt wrote: > Patrick McHardy wrote: > >>> I've hit another kernel oops with 2.6.20-rc3 on i386 platform. It is >>> reproducible, as soon as I load nf_conntrack_ipv6 and try to send >>> something large (scp or so) inside an OpenVPN tunnel on my client >>> (patched with UDPv6 transport) the router (another box) OOPSes. >>> >>> tcpdump suggests the problem appears as soon as my client sends >>> fragmented UDPv6 packets towards the destination. It does not happen >>> when nf_conntrack_ipv6 is not loaded. This is the OOPS as dumped from >>> the serial console: >> >> Does this patch help? > > > Yes, seems to be working fine. Thanks, I'll send it upstream tonight. > Can you tell since when this bug is in the kernel? The real bug is in nf_conntrack and probably has been there since the beginning (which I think is about 1.5 years ago). It blows up in combination with the GSO code, which I believe was added in 2.6.18-rc, but it might have caused troubles somewhere else before. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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