Problem on Alpha 2.0.1

Craig Ruff (cruff@niwot.scd.ucar.edu)
Sun, 7 Jul 1996 14:43:18 -0600 (MDT)

I am running 2.0.1 with David M-T's patch. I have seen several problems
while accessing (for writes) my Quantum Fireball 1GB disk, which is my
faster disk of my two 1 GB drives. Mostly, I have been using the Segate
Hawk drive, which is slightly slower than the Fireball.

Anyway, here is the first problem. I was performing an image backup like so:

dd if=/dev/sda2 of=/dev/sdb2 bs=256k
(Hawk) (Fireball)

Eventually, I would get the following panic:

Aiee: scheduling in interrupt fffffc00003aa7ac

Which if I can read my handwriting properly is inside get_request_wait.
Changing the blocks size to 128KB also paniced, and 8 MB (I just went way
large) worked.

I also saw a hard hang (no response to anything but reset) when I ran
a mk2efs on the Fireball.