Apache1 or Apache2 ?

I am using apache 2.2.11.

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I run OpenSolaris 2009.06 with Apache 2.2.11 and cannot reproduce this 
behavior. The old_cwd_fd is closed. ZEND_EXIT calls zend_bailout which 
jumps back to the end of the try/catch block in php_execute_script where 
the descriptor is closed.

Can you be more specific about the behavior you encountered?

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I've encountered this problem using OpenSolaris (snv_115), apache 1.3.41 and php-5.2.12 (via mod_php5).  It was also a problem with php 5.2.9.  My apache processes continue to accumulate open files pointing to the directory which contains the php script.

I am using gcc 4.3.3, gnu as, and solaris ld.  It makes me wonder if it's a compiler-related thing.

I was also talking to a friend and we checked his httpd processes and saw the same file descriptor leak.  His setup is Solaris 9 (sparc), apache 1.3.41, php 4.4.8, and gcc 4.0.2.

I worked around my problem by unsetting HAVE_BROKEN_GETCWD.  I have a couple other ideas on possibly narrowing down the problem, but I haven't had a chance to try them.

I finally got a chance to test a theory.  Looks like the volatile attribute fixed things for me.

#if HAVE_BROKEN_GETCWD
        volatile int old_cwd_fd = -1;
#else

Once I added that, the setjmp/longjmp worked as expected.  I got the idea from the manpage on Solaris:

     The values of register and  automatic  variables  are  unde-
     fined.  Register  or automatic variables whose value must be
     relied upon must be declared as volatile.

Perhaps it's a gcc/gas/Solaris/x86 optimization somewhere that overlooked the case, but this is a workaround.  Of course, undefining HAVE_BROKEN_GETCWD for Solaris also works, if you have a web tree that isn't restricted in some way.

I've been trying to track down this file descriptor leakage problem for months.  I was stuck on 5.2.8 because of it.  I confirm that the issue is specifically with Solaris 10.  I have opensolaris sxce nevada 130 locally and I've not seen FD leakage on it.

I confirm that patch suggested by bryan at stansell dot org seemed to correct the problem.  FYI, PHP was spawned and remains persistent for use with the Litespeed web server (uses the LSAPI interface), so it would run out of file descriptors between 1 and 12 hours on my site.  It's a bit disappointing that this error has been present for 5 releases and was never fixed.

This still broken in PHP 5.3.3

When is it going to be fixed

I've heard that this was fixed in PHP 5.3.5. It's not listed in the release notes 
from what I can see, so can someone confirm if 5.3.5 addresses this issue?

Will be in the next batch of releases