Hello, since some versions of AUFS I encountered problems with log rotating cronjobs, when using it together with OpenAFS. The computer then stalls, prints some kernel traces about hung tasks, and in an already running "top" one can see a increasing load. File accesses are not possible then, so that a hard reboot is necessary.
I report it so late, because I was not sure, if this was my fault (and it was faster to find a a way around it than a reproducible meaningful case...): mount -t aufs -o br:A=rw:B=ro none C A is a writable directory (it doesn't matter if shared memory or on a disk) B is a directory on an OpenAFS volume (it doesn't matter if R/W or R/O) If a file exists on B, but not on A, then the computer stalls, when rename(2)ing the file via C. "rm file; touch file; mv file newfile" runs as expected. I use Debian Testing, the problem startet in the last summer, with Linux Kernel 3.9 or 3.10 and is still there in Debians 3.13.5. The error is the same when using the precompiled module and with a vanilla kernel with the patches from git://git.code.sf.net applied. It happens under different versions of OpenAFS and with different mount options (udba=...). If you need more information, then please tell me. with best regards. Erik ------------------------------------------------------------------------------
