Comment 181 for bug 346691

Hi everybody. I'm coming here after a lot of searches about fs corruptions in Ubuntu. Description from the original poster seems to apply very well to my situation.

"Suddenly", already running apps start to seg fault, while new started ones usually report some error with shared objects (missing, not loadable due to header problems... I can't recall the exact messages). I got no data loss, maybe because when these errors start to show I shut down the system as quickly as possible. Usually shutdowns fail and sometimes I'm able to see the EXT3-fs error messages (similar to those in #177).

These are the BAD NEWS. Ubuntu is 9.10 Karmic, and:
$ uname -a
Linux frank 2.6.31-20-generic #57-Ubuntu SMP Mon Feb 8 09:05:19 UTC 2010 i686 GNU/Linux

My system is a 32bit, 6 years old Acer laptop. I can't remember when the bug first showed up, but surely it was there with release 2.6.31-16 (or -15).

Now the GOOD NEWS (I hope). It seems I'm able to REPRODUCE IT!

Some weeks ago I tried to run AC3D 6.5, a (not free) 3d modeler, and after some minutes exploring it, closed it and got a strange error: "Unable to save configuration file in xxx" (or similar). Very peculiar, but the system seemed ok, so I forgot about it and went on; after a few minutes errors was so frequent that I had to shutdown the system and fsck the disk from a Live USB.

I tried that software other times always getting the same problem, even after some kernel upgrade. So I gave up with it and decided to give K-3D a try. I downloaded and started it. After the splash screen showed, the software had a segmentation fault AND the fs got corrupted once again. Again after some kernel upgrade, I repeated the test and got the same system failure. Then I tried Blender and... surprise, I experienced the bug once again. I tried another (let's say it) OpenGL (non free) software, which I started and operated successfully some month ago, and the bug was there.

From my little experience, I can conclude that any time I start some OpenGL 3D software, this bug shows up. Otherwise, I can keep my system up for days without any problem. Please note that I have Compiz disabled, because it has some glitches with Java Swing applications, and no screensaver running. Moreover, if I remember correctly (must check it), I had some mesa or radeon driver update in these months, between the last working execution of an OpenGL app and the first appearance of the bug.

I'm going to test with some other 3D app just to see whether that path goes anywhere.

I hope this report will help you.

Bye,
Marco