It seems like i lost some of the text in the report above, the full sentence should be; While copying data from old /home-partition on one drive to new /home-partition on a new drive (both dm_crypt + ext4), watching video from old /home and Tectonicus minecraft-map-renderer starting an hourly render, disk activity suddenly stopped.
I have done some additional testing, using linux-image-2.6.35-30-generic from maverick is stable. I set up a virtualbox machine, attached a physical partition and did the same setup as above; natty + dm_crypt + ext4. Then i configured netconsole so i would see any errors even if the machine froze, and started two scripts running over and over again. One compressing and extracting the same 400MB folder of 1MB .rar-files, another copying a 70GB folder and removing the copy. I ran this for 1½hour without errors, and then i stumbled over; http://osdir.com/ml/linux-ext4/2010-12/msg00054.html which made me realize that to mimic the hostmachine more correctly i should give the virtual machine access to all 4 cores instead of the virtualbox default of just one. I left it running over the night and today all I/O on the machine was frozen, but no message in netconsole. I'm gonna try this setup again to see if i can get some kind of error, with another fs to see if it's ext4-specific, and I'm thinking about compiling the kernel with the parallel dm-crypt-patch reversed, to see if that's the issue, even though it's reported solid; http://osdir.com/ml/linux-ext4/2010-12/msg00020.html Any more suggestions? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/797127 Title: kernel BUG at ext4/inode.c:2082 during heavy I/O To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/797127/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
