Here is the syslog; the call trace I mentioned in the bug report is around 10:36.
(The system freeze I mentioned occurred around 11:05 or so but the call trace I saw on screen doesn't appear to have been captured in the log. I'll try and file a separate report about that if it occurs again and I can get a screen photo, so let's focus this report on the nfsv4 call trace shown at 10:36.) ** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/779804/+attachment/2120897/+files/syslog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/779804 Title: Call Trace hit preparing for sleep -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs