[modperl-embperl] mdat + udat = hang

Are there any issues with using mdat and udat in the same page?
I've been using udat for a while with no problems, and mdat also seems to
work fine on its own, but mdat and udat in a single page cause the server
to lockup.

I'm using Embperl 1.3.4, Session 1.54, SessionX 2.00b3. I'm using mysql
for session storage.

I have pages,
x.html: [+ $udat{x} +]
y.html: [+ $mdat{y} +]
z.html: [+ $udat{x}." ".$mdat{y} +]

x.html and y.html work fine, but z.html causes the page to hang forever.


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try using something other than sysv semaphore locking (eg
filelocking).

its possible to get hash collisions with the Apache::Session sysv
semaphore locking code, which means both %udat and %mdat try and grab
the same lock. (afaik this hasn't been fixed or worked around in
Apache::SessionX yet)