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

ID: 20551 Comment by: sroussey@network54.com Reported By: sroussey@network54.com Status: Feedback Bug Type: Output Control Operating System: RedHat 7.2 PHP Version: 4.2.3 New Comment: 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). Previous Comments: ------------------------------------------------------------------------ [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. ------------------------------------------------------------------------ [2002-11-21 14:49:28] sroussey@network54.com I should say that by disabling, I meant that I commented out the line ob_start ('ob_gzhandler'); in our auto-prepend file. ------------------------------------------------------------------------ [2002-11-21 14:47:55] sroussey@network54.com Apache 1.3.27 error_log has a long list of segfaults (usually 3-12 a minute, but not every minute). Disabling output compression (via ob_start ('ob_gzhandler');) stops all the segfaults. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=20551&edit=1