ID: 42682
Comment by: margus at zone dot ee
Reported By: Slig at free dot fr
Status: Open
Bug Type: Streams related
Operating System: linux-64
PHP Version: 5CVS-2007-09-16 (snap)
New Comment:
I was hit by the same annoying bug (CentOS 4.5/x64/PHP5.1.6 & 5.2.3)
After debugging PHP stream_select() I found out that system's select()
returns correct number but this value get's mysteriously set to zero
(memory is overwritten?) a few steps before returning it to PHP script.
Anyway, the cure for me was to change an variable type from int to long
and explicitly reset it to 0. This patch works for both PHP 5.1 and
5.2:
--- ext/standard/streamsfuncs.c.orig 2007-10-09 16:21:30.000000000
+0300
+++ ext/standard/streamsfuncs.c 2007-10-09 16:21:41.000000000 +0300
@@ -608,7 +608,7 @@
zval **elem, **dest_elem;
php_stream *stream;
HashTable *new_hash;
- int this_fd, ret = 0;
+ long this_fd = 0, ret = 0;
if (Z_TYPE_P(stream_array) != IS_ARRAY) {
return 0;
Previous Comments:
------------------------------------------------------------------------
[2007-10-11 16:29:15] Slig at free dot fr
Sorry, still the same with the last snapshot on amd64/dual core xeon on
debian etch : it works without --with-openssl but don't work when
built using --with-openssl :(
------------------------------------------------------------------------
[2007-10-11 13:51:17] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php5.2-latest.tar.gz
For Windows (zip):
http://snaps.php.net/win32/php5.2-win32-latest.zip
For Windows (installer):
http://snaps.php.net/win32/php5.2-win32-installer-latest.msi
------------------------------------------------------------------------
[2007-09-21 00:06:00] Slig at free dot fr
I tested today on a dual dual-core-xeon on current Fedora 7 x86_64,
first with current php and current openssl, then building php6 from the
source : same result, it give the expected result without openssl, but
return 0 when build with --with-openssl when there is a descriptor to
read.
Note: If i use as workaround 'while($nb>0 || count($r)>0){' and reduce
the read buffer ( fread($handle,30); for example), then i see that after
the first read the value returned by stream_select is ok... but it shows
another bug (#42720) :d
------------------------------------------------------------------------
[2007-09-19 08:26:27] Slig at free dot fr
OpenSSL on the tested computer: Architecture: amd64 , Version:
0.9.8c-4
I can try only on the same server with a different cpu (dual core xeon
and not quad core xeon) and another distro, but not sure when i'll have
time for that, i'll tell you the result here.
------------------------------------------------------------------------
[2007-09-18 09:40:37] [EMAIL PROTECTED]
I still can not reproduce this on my system.
OpenSSL Version => OpenSSL 0.9.8b 04 May 2006
Are you able to reproduce this on more than one machine? (and with
other linux distro than debian)
------------------------------------------------------------------------
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/42682
--
Edit this bug report at http://bugs.php.net/?id=42682&edit=1
