On Fri, 2008-11-21 at 11:06 +0100, martin f krafft wrote: > Package: linux-image-2.6.26-1-amd64 > Version: 2.6.26-10 > Severity: important > Tags: ipv6 > > This is a lenny system. Important because IPv6 is a release goal. > > When I run dmesg through a (native) IPv6 SSH connection on a new > server, the kernel spews plenty traces to the console. The first > trace says the kernel is not tainted, in subsequent traces, the > taint is claimed to be GW(512). Note below how it is tainted at > 10:25:50 (second trace), but not at 10:25:49 (first trace).
A WARN or BUG taints the kernel.
> The same problem arises during *outgoing* scp and renders all other
> SSH sessions basically unusable for the duration of the transfer.
> I can reproduce this with an *outgoing* HTTP session too.
This is a warning from the GSO (like TSO) code which only applies to
outgoing traffic.
The warning comes from:
if (WARN_ON(skb->ip_summed != CHECKSUM_PARTIAL)) {
which means something generated an skb with incorrect flags (GSO depends
on having a partial checksum).
I notice there's bridging code in the call trace, and kvm in the modules
list. Were you initiating the IPv6 connections from inside a VM?
Ben.
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