Public bug reported: 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. Also please let me know if this is a wrong place to report this problem. ** Affects: xtables-addons (Ubuntu) Importance: Undecided Status: New ** Tags: iptables kernel-bug xenial xtables-addons ** Package changed: kexec-tools (Ubuntu) => xtables-addons (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1579385 Title: Kernel 4.4.0-22 OOPSes when using xt_CHAOS from xtables-addons To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xtables-addons/+bug/1579385/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
