Perhaps a clue: after the upgrade, I was also finding my wifi was a little flaky. Last week I disabled wifi and unloaded the ath5k drivers and other related drivers. The system has been up 10 days now, which is the longest uptime since this problem started.
>From dmesg: ath5k: phy0: Atheros AR2414 chip found (MAC: 0x79, PHY: 0x45) Could this be the culprit? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1388645 Title: System hangs randomly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1388645/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
