Re: PHP Script causing recursive free() calls (?)

On Tue, 14 Aug 2001 13:45, Chris Cameron wrote: > I was told this was a PHP problem, and to submit a bug report. I'm not > too sure what such a bug report would look like, or even if this is a > PHP problem. > > Below is the message I sent to an Apache list, could someone tell me > whether my problem is crummy code, or an actual problem with > PHP/Apache? > > Thanks > Chris > > -----Original Message----- > From: Chris Cameron [mailto:chris@upnix.com] > Sent: Friday, August 10, 2001 12:40 PM > To: apache-server@yahoogroups.com > Subject: PHP Script causing recursive free() calls (?) > > > I've got quite a problem with part of a PHP script I wrote causing > Apache too fill up it's error logs with: > httpd in free(): warning: chunk is already free. > httpd in free(): warning: chunk is already free. > httpd in malloc(): warning: recursive call. > FATAL: emalloc(): Unable to allocate 256 bytes > > Each call of this script will put about 20 megs in my error log. > My Apache setup is: > Apache/1.3.20 (Unix) > mod_ssl/2.8.4 > OpenSSL/0.9.6b > PHP/4.0.6 > > And my phpinfo page is at chris.upnix.com/index.php > > The part of my PHP script that's causing the problem (sorry about the > wraping): > /* If no errors, submit junk to database */ > if(!isset($Error)) { > for($i = 1; $i <= $Days; $i++) { > /* Write to bookings first */ > $QueryString = "INSERT INTO bookings VALUES(nextval('BID'), > '$CompanyID', '" . $TimeSpan[$i] . "', '$TimeF', > '$TimeT', > '$PricePerUnit')"; > $Query = pg_exec($Connect, $QueryString); > $OID = pg_getlastoid($Query); > /* Find the BID we were given */ > $QueryString = "SELECT bid FROM bookings WHERE oid = '" . $OID . > "'"; > $Query = pg_exec($Connect, $QueryString); > $Result = pg_fetch_array($Query, 0); > $BID = $Result['bid']; > /* Go through our therapists */ > foreach($Therapists[$i] as $Key => $TherapistID) { > $QueryString = "INSERT INTO bookedtherapist VALUES('" . $BID . "', > '$TherapistID', '$TimeF', '$TimeT')"; > pg_exec($Connect, $QueryString); > } > } > /* Everything Should be done, send us off to schview.php */ > header("Location: " . $BaseURL . "admin/schview.php"); > exit; > } > > > I've tried rewriting little parts of this script, but haven't had any > luck in stopping the errors. Also, I've recompiled everything twice > now, which also didn't help. Any help would be appreciated. > > Thanks, > Chris This comes from someone who has no experience with Postgres, but I suspect that you may be getting into trouble inside your for and foreach loops where you do apossibly huge number of inserts without freeing used result pointers. Try doing a pg_free_result after each insert and see if that helps. For reporting PHP bugs, try www.php.net and follow the link 'reporting bugs' at the top right :-) -- David Robley Techno-JoaT, Web Maintainer, Mail List Admin, etc CENTRE FOR INJURY STUDIES Flinders University, SOUTH AUSTRALIA Fact is solidified opinion