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
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