Application freeze escalates until whole system locks up
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux-meta-lowlatency (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
Twice today my machine has locked up in the same way and in the same circumstances. In both cases it started with Firefox freezing. At this point I could still switch between windows move windows around the desktop. However when I clicked the X in the corner to close the Firefox window, the desktop became completely unresponsive. I could still move the mouse pointer around, but I couldn't click on anything.
I could also switch to another virtual console using ctrl-alt-F1 etc. In the virtual console I could type my name at the prompt and press enter, but apart from the cursor moving down a line, nothing would happen. After a while I got 9 or so messages on the console of the form "INFO: task mount.ntfs:2725 blocked for more than 120 seconds", followed by ""echo 0 > /proc/sys/
Apart from these messages nothing else changed for the several minutes until I forced a shutdown. I could return the console cursor to the next line, I could switch between terminals and I could move the mouse pointer about, but I couldn't do anything else.
In case it is relevant, the NTFS activity that was fairly heavy, it being a system backup to external disk using Deja Dup.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.8.0-27-lowlatency i686
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: i386
Date: Mon Aug 12 13:25:06 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-08-05 (6 days ago)
InstallationMedia: Ubuntu-Studio 13.04 "Raring Ringtail" - Release i386 (20130424)
MarkForUpload: True
SourcePackage: linux-meta-
UpgradeStatus: No upgrade log present (probably fresh install)
| halfbeing (halfbeing) wrote | #1 |
| halfbeing (halfbeing) wrote | #2 |
The problem has occurred a third time and I have noticed another detail. When I move the mouse pointer around and hover it over the edge of a window, it changes to the resize pointer. However everything else about the screen is stuck. For instance the animation in my Fish the Fish applet remains frozen.