[PHP-DEV] PHP 4.0 Bug #6341 Updated: floating point exception on session.c From: goten <email protected>
Date: 12/28/00

ID: 6341
User Update by: goten <email protected>
Status: Open
Bug Type: *Session related
Description: floating point exception on session.c

After playing with the configuration for a couple days, I finally figure out what cause the problem. When I configure --with-gd=/usr/local, the configure rountine did not find the libjpg and png installed. But the configure routine still install the GD option in PHP. That's what cause the apache keep crashing on the test page. I have to manually specify --with-jpeg-dir=/usr/local and --with-xpm-dir=/usr/X11R6.

So, now the question is:
1. Why the configuration routine still install GD while libjpg and png can not be found, even libjpg and png is required by GD.
2. Why would that cause the apache to crash even no GD function is using?

Previous Comments:
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[2000-12-27 19:41:21] goten <email protected>
I tried on php-4.0.4 with the fix

fpsetmask(mask & ~FP_X_IMP);

to

fpsetmask(0);

The problem is stil there. I ran configure as

./configure --without-mysql --with-apxs=/usr/local/apache1/bin/apxs --with-config-file-path=/usr/local/etc --enable-track-vars --with-gd=/usr/local

Even without mysql, as long as --with-gd is there, the problem still exist.

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[2000-12-22 17:58:45] sas <email protected>
Does that still happen, if you change

fpsetmask(mask & ~FP_X_IMP);

to

fpsetmask(0);

in Zend/zend.c (around line 339)?

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[2000-12-22 15:38:34] kalowsky <email protected>
Once again, I was unable to reproduce this locally. The provided URL does indeed seem to cause instant data loss though...

What does seem to be at issue here may be the same issue Sascha has discussed in an email on the php-dev list entitle "FPEs on FreeBSD" where another report has been filed on this. FreeBSD 4.1-STABLE is identified as having this problem.

---------------------------------------------------------------------------

[2000-12-21 13:53:42] goten <email protected>
This is the error I got from kern.log

Dec 22 02:19:45 central pid 474 (httpd), uid 65534: exited on signal 8
Dec 22 02:20:05 central pid 475 (httpd), uid 65534: exited on signal 8
Dec 22 02:20:19 central pid 476 (httpd), uid 65534: exited on signal 8

---------------------------------------------------------------------------

[2000-12-21 13:20:28] goten <email protected>
This is the error I got from kern.log

Dec 22 02:19:45 central pid 474 (httpd), uid 65534: exited on signal 8
Dec 22 02:20:05 central pid 475 (httpd), uid 65534: exited on signal 8
Dec 22 02:20:19 central pid 476 (httpd), uid 65534: exited on signal 8

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Full Bug description available at: http://bugs.php.net/?id=6341 

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