[bwarsaw@python.org]

I've done a bit of testing using Apache and both NS and MSIE. What I did was add a big sleep in admin.py, in main(), just before the finally at the bottom of the function.

Immediately after the 'print doc.Format()' statement? Then you shouldn't get any SIGPIPEs, right?

I added some debug prints so I could see what was going on.

As near as I can tell, if I hit the browser's stop button after entering that big sleep, the CGI process gets kill stone cold. It never reach the finally clause, doesn't get a SIGPIPE, nothing.

Ouch. Does that imply a SIGKILL, or are there other signals which could produce such behaviour?

Since I can't reproduce this, I'm not sure what the right thing to do is.

I can't reproduce it either -- although I suspect at least part of the problem might be ugly TCP/IP stacks and/or browsers (if hitting the "stop" button doesn't actually close down the TCP connection properly, I guess there could be problems once the CGI script tries sending data down the partially closed socket).

Harald, what webserver are you running?

The problems my users reported was from a Mailman installation using Apache 1.3.2 on Solaris 2.6. I don't know what web browsers were being used (and it's been a while since anyone reported a problem like this).

Harald