Problem with redirecting.

Hi,

I wrote a TUX module to handle reading from a special image cache on disk,
and it redirects to apache if it cannot find the image or if there's another
error along the way. Apache will fetch the image and put it into the cache
if it doesn't exist already.

Except, no matter where in the code I redirect to apache, it will
completely hang the TUX thread, so after a few tries I've completely hung
TUX, and have to reboot the machine to make it usable again.

If it can successfully draw from the disk cache, it will work no matter
how many times I run it. Whenever it runs TUX_ACTION_REDIRECT_REQ, it will
successfully redirect the request and return the image from apache. After
it finishes sending the image from apache, the TUX thread hardlocks. It
does not return to the module again.

I have upgraded TUX to the latest release in both kernel and userspace
code (2.4.18-A3, 2.2.5 userspace) and the problem still exists.

URL to the code: http://rydia.net/~dormando/userpic.c

Some debugging output from it working correctly once, then me crashing
both running threads:

Heading into request #0. Objectname userpic/10
Running event 0
Looking for rindex
See if this is the end of the string.
Getting the length of the string, and sanity checking.
Scanning the array for digits.
Building objectnew
Copying array and grabbing object.
Heading into request #1. Objectname /userpics/010/p10
Mallocing
Heading into request #2. Objectname /userpics/010/p10
Running event 3
Running the MIME checks
Sending the header buffer
Heading into request #3. Objectname /userpics/010/p10
Sending the actual object now, wohoo
Heading into request #4. Objectname /userpics/010/p10
Closing the request
Heading into request #0. Objectname userpic/1000000000000000000000
Running event 0
Looking for rindex
See if this is the end of the string.
Getting the length of the string, and sanity checking.
Heading into request #0. Objectname userpic/1000000000000000000000
Running event 0
Looking for rindex
See if this is the end of the string.
Getting the length of the string, and sanity checking.

Any help is appreciated. The code isn't long.
-Alan