Segmentation faults (11) in error_log

Undertoad · 10-18-2003, 11:37 PM

Probably not - a lot of web sites are that tightly integrated with MySQL, including this one.

If you correlate the time of the segfault with the httpd logs, including the error log (especially if PHP is set up not to report errors to stdout but to the error log), you might be able to spot something running every time just before the crash. Of course if everyone's site goes to a different log file that may be hard to do.

Usually PHP is compiled right into httpd and so it's possible that a bad script could blow it out. But as an interpreted language, PHP is supposed to catch such things before they cause a segfault. The latest PHP is 4.3.2 or something so you might want to see if the release notes for later levels mention segfaults. This is another reason to just upgrade to RH9, because that will include a later PHP, if you're using the Red Hat packages.

10-18-2003, 11:37 PM	#5
Undertoad Radical Centrist Join Date: Jan 2001 Location: Cottage of Prussia Posts: 31,423	Probably not - a lot of web sites are that tightly integrated with MySQL, including this one. If you correlate the time of the segfault with the httpd logs, including the error log (especially if PHP is set up not to report errors to stdout but to the error log), you might be able to spot something running every time just before the crash. Of course if everyone's site goes to a different log file that may be hard to do. Usually PHP is compiled right into httpd and so it's possible that a bad script could blow it out. But as an interpreted language, PHP is supposed to catch such things before they cause a segfault. The latest PHP is 4.3.2 or something so you might want to see if the release notes for later levels mention segfaults. This is another reason to just upgrade to RH9, because that will include a later PHP, if you're using the Red Hat packages.

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