Edit report at https://bugs.php.net/bug.php?id=47675&edit=1
ID: 47675
Updated by: jsjoh...@php.net
Reported by: cs at ecn dot purdue dot edu
Summary: File descriptor leaked due to HAVE_BROKEN_GETCWD
-Status: No Feedback
+Status: Re-Opened
Type: Bug
Package: Apache2 related
Operating System: Solaris 10
PHP Version: 5.2.9
Block user comment: N
Private report: N
Previous Comments:
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[2011-09-28 00:58:18] jsjoh...@php.net
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?
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[2011-05-18 18:23:29] pyorke at joyent dot com
This still broken in PHP 5.3.3
When is it going to be fixed
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[2010-08-08 10:20:55] php at marino dot st
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.
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[2010-01-12 15:40:45] bryan at stansell dot org
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.
------------------------------------------------------------------------
[2010-01-09 06:59:22] bryan at stansell dot org
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.
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