Public bug reported: After some digging and tinkering, I suspect iwlagn / wireless networking.
Symptoms / timeline: - I've had this laptop (Lenovo T500) less than two weeks now. - I have an external SATA hard drive connected to the laptop with the help of a PCMCIA adapter. - The system hangs completely from time to time. - At first I suspected VirtualBox: The hangs were happening when working with Windows instances on the external SATA drive. - Additionally, the VirtualBox images were being corrupted, usually e.g. when downloading & installing XP SP2 - Once the drive itself was corrupted, although this might be from the hard-power-off: Had to rescue some directories from lost+found after an fsck. - Then, I suspected the external drive of being bad, or maybe the adapter causing problems. (It has been working great for years.) - Oops, there were files on my internal drive being corrupted too! (Found a bunch of binary crap inside a header file. Forcing a reinstall of the package via aptitude made it better. Right now debsums reports that everything is matching up so far, besides a bunch of .desktop files....) - And, I've now gotten a handful of lockups without vbox running at all. - The typical freeze: No mouse movement, music playing loops infinitely over the last 1/10 of a second or so of sound, caps lock key flashes; nothing to do but hold down the power button. - Two nontypical freezes as well: - One, firefox (and possibly any new process, but I was trying to get work done at the time) would fail with "Bus error" when trying to start it from the command line; restarting made the issue go away. - Two, no new processes would start at all. I was able to switch to a console and try to log in there -- the login worked but bash never came up. - That second one was spewing kernel output once I got to a console, including messages about iwlagn or intel wireless, I forget which. I'm currently stresstesting the system on a wired connection. Possibly related: http://ubuntuforums.org/showthread.php?t=832383&highlight=flash+64+alpha&page=3 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/300693 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/303276 (However, I'm on wireless B/G and never N so far.) lkml thread "bad DMAR interaction with iwlagn and SATA" Besides the obvious and eagerly anticipated fix, this is enough of a problem that a workaround would be very very very nice. (I'd almost rather have the hard lockups every time than occasional silent disk corruption, and I'm considering doing a clean install over a wired network just in case.) I'm happy to attach any additional logs or information missed by ubuntu- bug. Thanks and cheers. ProblemType: Bug Architecture: amd64 DistroRelease: Ubuntu 9.04 HibernationDevice: RESUME=UUID=2e67e80f-9fe0-4bb3-93fc-7b8a545e747d MachineType: LENOVO 2081CTO Package: linux-image-2.6.28-11-generic 2.6.28-11.42 ProcCmdLine: root=UUID=6f5a17ec-eb58-42ce-b69b-f99e8c5b7473 ro quiet splash ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.28-11.42-generic SourcePackage: linux ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug -- Disk corruption and complete freezes. :( https://bugs.launchpad.net/bugs/381327 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs