Bug #16077: Large output data causes output buffering to crash

From: harry.brueckner@orange-digital.de Operating system: RH Linux 2.4.9-31 PHP version: 4.1.1 PHP Bug Type: Output Control Bug description: Large output data causes output buffering to crash This script causes PHP to crash (sigsegv, return nothing OR to cause wget to tell "HTTP request sent, awaiting response... End of file while parsing headers. Retrying.") almost any time. The include.txt file I used was larger than 100k and was just a simple text. The content of the file is not important at all, I tried several versions. <?php function getMicrotime() { list($usec, $sec) = explode(" ", microtime()); return ((float)$usec + (float)$sec); } function timer($buffer) { global $startTime; $endTime = getMicrotime(); $diff = sprintf("%.5f", $endTime - $startTime); return $buffer . "\nExecution time: $diff sec<br>\n"; } $startTime = getMicrotime(); ob_start("timer"); for ($i = 0; $i < 500; $i++) { $fh = fopen("include.txt", "r"); $cmd = fread($fh, 1048576); fclose($fh); echo "$i $cmd\n"; } ?> I compiled PHP with ./configure --prefix=/usr/local/php --disable-short-tags --enable-safe-mode --enable-ftp --with-mysql=/usr/local/mysql --with-zlib --enable-memory-limit -- Edit bug report at http://bugs.php.net/?id=16077&edit=1 -- Fixed in CVS: http://bugs.php.net/fix.php?id=16077&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=16077&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=16077&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=16077&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=16077&r=support Expected behavior: http://bugs.php.net/fix.php?id=16077&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=16077&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=16077&r=submittedtwice