I've a customer with a 1.4.3 machine (upgrading to 1.5 is not an option at
the moment). They are running crashed quite often with a squid as a web
proxy. The machine panics quite often with ffs_valloc: dup alloc (it's
squid it panics in). Thinking this was a bug in the FFS code in 1.4.3 that
fsck could not fix, I newfs'd the partition (it's basic ffs) and restored
from a backup. It's still happening though. What's the best way to work
around this problem? iclr and then fsck?

-- 
Stephen