Bob Johnson wrote:
Any chance your RAID array is built from two-year-old Western Digital
drives? Your problem sounds a lot like the one discussed here:
http://adam.kungfoohampster.com/lists/freebsd-questions/msg18877.shtml
The message above doesn't mention it, but the WD KB article also
includes a fix for drives on 3Ware controllers.
Probably this is not the problem. I have Seagate drives, and the
symptoms seem to be different - I have a panic, not a freeze.
Although I am having problems with the disk when I reboot. The program
I am running outputs a data.check file every second or so, so that
when the program is restarted it can pick up where it left. The code to
do this is something like
check_point = open(data.check-tmp,O_WRONLY|O_TRUNC|O_CREAT,0644);
write(check_point,lots-of-stuff);
close(check_point);
rename(data.check-tmp,data.check);
What I find is that after the panic the file data.check is several
days old. I am guessing it is because the IDE Seagate disk has some
cache that it doesn't write back to the disk - probably it is the
directory itself which is not properly updated. It is a bit annoying,
but I can live with this. But maybe this indicates something more sinister.
I have put in another IDE disk whose only purpose is to be the disk to
dump to. Hopefully I will be able to catch a good dump on that.
--
Stephen Montgomery-Smith
[EMAIL PROTECTED]
http://www.math.missouri.edu/~stephen
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