Greetings, Opened a bug on Launchpad, since it happened on Ubuntu, probably was the wrong place to do that, so reposting here. After upgrading from Wily to Xenial, my server started being frequently rebooted by an HP iLO watchdog. I turned it off, and installed kdump tools, and managed to capture a kernel crashdump. Turned out to be a network-related OOPS, looks like a bug with xtables modules and kernel 4.4.0 (the issue doesn't seem to occur with 4.2.0). crash tool outputs for two crashes (occured in series with 5-minute pause for server coldboot): http://pastebin.com/BSyEmUyJ corresponding kernel backtraces: http://pastebin.com/BMmqzrVP http://pastebin.com/xQRA2kGP The offending iptables rule, now removed: iptables -A INPUT -j CHAOS --tarpit xtables-addons-dkms and xtables-addons-common version: Installed: 2.10-1build1 Candidate: 2.10-1build1 Version table: *** 2.10-1build1 500 500 http://mirror.yandex.ru/ubuntu xenial/universe amd64 Packages 100 /var/lib/dpkg/status Kernel version 4.4.0-22-generic #39-Ubuntu SMP Thu May 5 16:53:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux I still have the dumps and can provide any additional information necessary. Bug on Launchpad: https://bugs.launchpad.net/ubuntu/+source/xtables-addons/+bug/1579385 --- Andrew -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
