[OpenAFS] 1.3.84 (and before) crashes box during file copies

[Jason McCormick]

  We've been running into intermittent problems where copying "large" files
(i.e. seems to be ~ 15M or larger) between volumes causes AFS to crash the
client host.  We have not been able to observe/capture any oops/panic
notices if they exist.  How can we debug this problem?  This has been
happening for the last several releases, but we cannot make it reliably
happen all the time.  It seem that moving large files from AFS to local
disk and local disk to AFS works fine.

-- 
Jason McCormick <jasonmc@cert.org>
CERT Infrastructure Team