#26712 [NEW]: Segfault using readfile() on certain sized files

From: scotje at wwc dot edu Operating system: Linux 2.4 (Gentoo) PHP version: 4.3.3 PHP Bug Type: Apache2 related Bug description: Segfault using readfile() on certain sized files Description: ------------ I believe this is probably a duplicate of bug #24301 but since I have additional information but am unable to reopen that bug, I'm added a new report. Feel free to mark this as a dupe and reopen the other bug if that is appropriate. Basically, Apache2/PHP segfault with no warning or error message when you try to use readfile() on a file exactly 16k (16384 bytes) in size. The original submitter of #24301 reported the problem with 64k files as well. When I padded the file out to 21k, the problem disappeared. There was also no problem when I moved back to Apache 1.3.x. I understand Apache2/mod_php is not recommended yet (or at least didn't used to be) so I just want you guys to be aware of this bug. I'm not expecting an immediate fix or anything. :) Thanks! -Jesse -- Edit bug report at http://bugs.php.net/?id=26712&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26712&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26712&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=26712&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=26712&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=26712&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=26712&r=needscript Try newer version: http://bugs.php.net/fix.php?id=26712&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=26712&r=support Expected behavior: http://bugs.php.net/fix.php?id=26712&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=26712&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=26712&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=26712&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26712&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=26712&r=dst IIS Stability: http://bugs.php.net/fix.php?id=26712&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=26712&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=26712&r=float