#20551 [Fbk]: Output compression causes segfaults (ob_gzhandler)

ID: 20551 Updated by: wez@php.net Reported By: sroussey@network54.com Status: Feedback Bug Type: Output Control Operating System: RedHat 7.2 PHP Version: 4.2.3 New Comment: We recommend using zlib.outputcompression instead of ob_gzhandler; maybe this will solve your issues, without the need to upgrade PHP. Previous Comments: ------------------------------------------------------------------------ [2002-11-27 09:31:15] sroussey@network54.com One thing I forgot to add: I tried backporting all the fixes from CVS that referenced crashes/segfaults from zlib.c, output.c, and streams.c with no improvement. In the middle of the night, I'm going to temporarily install 4.3RC1 which will disable the accelerator and kick the load average to the roof, but hopefully I'll be able to check the error log for segfaults. ------------------------------------------------------------------------ [2002-11-27 09:26:39] sroussey@network54.com One other note that may be of interest to people search the bug the list. This bug has the net result of pushing the load average up to 150 from 6 in a series of spikes (more dense as traffic increases). ------------------------------------------------------------------------ [2002-11-21 18:32:19] sroussey@network54.com Unfortunately, this occurs statistically on a production server. To do a backtrace would require a debug version and to use CVS would be to use 4.3. Neither will work with the Zend Accelerator or Performance Suite. The site is inoperable without one of them. Maybe I can try a beta of one of those software packages to use with the current CVS. I'll ask. If I can not then I'll report the results after everything is released. ------------------------------------------------------------------------ [2002-11-21 17:30:38] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-latest.zip ------------------------------------------------------------------------ [2002-11-21 15:50:14] derick@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ 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/20551 -- Edit this bug report at http://bugs.php.net/?id=20551&edit=1