Linux 2.6.4 including wolk 2.3 and problems with a process called pdflush

Hi,

yesterday I got the kernel compiled as mentioned above and it looked
working fine. Maybe I have to add that I also applied the grsec patch.

Today, as I came home, my computer was really slow, load was above 6 and
there was a process running called pdflush. After looking into the source
tree I guess it has something to do with memory management, but thats
all I know :-)

Before rebooting my computer I looked for entries in the log files but
there seemed to be nothing regarding this problem. During the day the
computer didn't have to do something special. That means, nothing that he
hasn't done many times before without any problems.

I attached my .config as gzipped file. Is there anything a can do to avoid
this problem in future?

Regards,
Andreas