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SubjectHard freezes copying from (but not to) a 80GB Maxtor HD on a HPT370 channel
I have been happily accumulating some files on an 80GB Maxtor HD sitting on
/dev/hdg mounted as /arc. There are 2 other drives on the HPT370 (KA7-100
MB with TY Bios) and 2 on the main mother board IDE controller. The system
is currently running 2.4.3-ac14. It has been solid as a rock and I have
experienced no disk problems. I don't think I have crashed in the past 4
months running a ever changing series of kernels and changing HW from time
to time.

Today I tried to cp a directory from /arc to /fs2, a file system on hde, the
primary channel of the HPT370. The system immediately (almost, a few files
were copied) froze solid. I have tried to get to the bottom of this and
have determined that I can copy a 2GB test directory to every drive in the
system. At first I thought that I could copy safely off /arc if it went to
a drive not on the HPT370 controller. Trying to copy to a test directory to
/fs (/dev/hdb) worked and copying it to /fs2 (/dev/hde) caused an almost
immediate freeze. However, when I tried to cp 10GB from /arc to /fs while a
tape backup (of a partition on /dev/hda) was going on it once again (almost)
immediately froze the system solid.

The problem seems to only relate to the 80GB Maxtor. However, I haven't yet
done quite enough experiments to conclude that (gotta get real work done on
the machine so the reboots forced by the freezes limit how many tests I can
squeeze in in a day <G>) I can apparently copy data to the drive to beat
the band and I have regularly accessed files on the drive (e.g., to play an
mp3) but something about a mass copy is fatal. I consed up a 2.4.4-ac9
kernel and verified that the problem persists in that kernel too.

Can someone point me in the right direction? I have been assuming that it
is some driver issue, but that is just an assumption. Could it be the
drive? It is pretty new (a few months old). Unfortunately I must leave
town for a while in a few days. I'd love to get on top of this before I go
if possible.

I'd appreciate any hints or similar data other could provide.


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