I found some code that looks suspicious. The kernel below has a fix, so please try it out and let me know if it resolves the issue. The kernel also contains the extra debugging from the previous build (with a fix for an off-by-one error), so if the problem does happen again please give me the logs. Thanks!
http://people.canonical.com/~sforshee/lp1275879/linux-3.11.0-18.32+lp1275879v201402201000/ ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1275879 Title: Kernel panic Status in “linux” package in Ubuntu: Incomplete Bug description: I run ubuntu servers 13.04 and 13.10 on the AWS cloud. Whenever I install haproxy and nginx on the same server, after hitting it for a while, a kernel panic is caused. However, the kernel panic does not show up in ubuntu 12.04. The kernel panic is pasted at the end of the attachment. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1275879/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp