Accessing free'd request segfaults obviously

[slact]

When worker_processes > 1, there are occasional segfaults caused by trying to send a message (or in some way accessing) a listener's waiting request that has already been freed.

It is my understanding that when a request is completed (or aborted), the request's pool cleaner handlers will be called. Aborted requests are removed from a channel upon request pool cleanup, so it seems like the cleaner function is sometimes not called. Also, can't reproduce this with 1 worker process.

[slact]

Oh shit this is nontrivial. Worker process intercommunication is almost certainly necessary.
http://forum.nginx.org/read.php?2,14802

[slact]

done.