also sprach Ben Hutchings <ben@decadent.org.uk> [2008.11.29.2153 +0100]: > This could be a bug in the interaction of bridging or netfilter with > GSO. Could you try to rule out either of those? I cannot reproduce the same bug anymore, which may be due to the fact that I am using a proto-41 IPv6 tunnel at the new location (and thus lower transmission rates). But I found a but that seems awfully related. This time, it's on incoming traffic though, not outgoing. So the bug is kinda horrid: the NIC that provides eth0 also connects to the IPMI card, and when I cause a whole lot of IPv6 traffic (incoming, e.g. downloading ISOs from switch.ch via IPv6), the NIC locks up to the point where the IPMI card also becomes unreachable. A soft-reboot fixes the problem. There is nothing in the logs. I can produce this problem with bridging and iptables, or either of the two, but not if I disable bridging and iptables. But since it is rather intermittent, sometimes requiring several gigabytes to be shoved across the line before it hangs up, it could be that plain, no-iptables-no-bridge also has the problem. The machine is coming back home with me. :( -- .''`. martin f. krafft <madduck@debian.org> : :' : proud Debian developer, author, administrator, and user `. `'` http://people.debian.org/~madduck - http://debiansystem.info `- Debian - when you have better things to do than fixing systems
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