Environment:

PC:         Dual CPU PIII
OS:        Windows 2000 Pro
Python:   2.3.3
Apache 2.0.48 + mod_proxy calling standalone roundup
Roundup: 0.6.4
Template: bsddb, classic modified with +4 fields

First, we love Roundup so we're continuing to actively
use it despite running into this problem.  Thanks for
working on this project!

We're getting a "Bad file descriptor" error once every
3-15 requests/submits with no observable pattern.  Ran
into this issue with just 1 user active.

Clicking the browser's RELOAD button or resubmitting
after using the browser's BACK button always succeeds
in getting past the error--but we sometimes get
duplicate records when we do this (depending on the
page this happened).

Two uncommon things about our setup:

1.  dual cpu -- could this be making threading issues
more likely to crop up in Python?  Google found other
non-roundup apps having file descriptor problems in
Python which they resolved by catching/retrying upon
invalid file descriptor.

2.  modified roundup-server.bat so we don't have a
console/command prompt window in our task bar by using
"start" and "pythonw.exe" together.  

@echo off
if NOT "%_4ver%" == "" start
d:\apps\python23\pythonw.exe -O -c "from
roundup.scripts.roundup_server import run; run()" %$
if     "%_4ver%" == "" start
d:\apps\python23\pythonw.exe -O -c "from
roundup.scripts.roundup_server import run; run()" %*

We hope the attached error page helps.  It contains a
lot of details--we're new to Python so we can't help
(we installed Python simply to use Roundup).

ATTACHED ERROR PAGE:  issue.htm