[mod-security-users] Re: Mutex errors in chroot Apache

[Skye P. <sk...@f4...>]

Investigating the Apache2 source seems to have found the problem.  In FreeBSD
ports at least, the default APR locking method is APR_USE_FLOCK_SERIALIZE.

I'm sure flock() doesn't work well with a chroot() between calls :)
I wonder what would happen if the flock fd was pointing at a lockfile inside the
chroot jail?  The man page doesn't say what happens to open file fds...

Looks like mod_security and mod_rewrite are affected at least (both use locking
on their log files)

Maybe some other default APR locking method (like SysV semaphores) is safe on
FreeBSD 6.  I recall reading that POSIX semaphores may not be safe with
mod_security.

Thanks
Skye