Front page | perl.perl5.porters |
Postings from May 2003
This bug is essentially a dupe of http://mathforum.org/epigone/modperl/ zhoolamgheld/m3lm9ml44m.fsf@k242.linux.bogus which was reported by Andreas König Tue, 11 Jun 2002 and caused quite a lot of headache before the culprit was found. The solution to the bug is to upgrade to libapreq 1.1 / Apache::Request 1.1 since 1.0 is the offending module. Sadly 1.1 was not released until february 2003 even if the patch was from the summer 2002. 1.1 incorprates the patch slightly differently and even more robust. The other solution is to make sure you don't have upload filehandles around when you do a system() call (or anything that flushes all filehandles). What happens essentially is that Apache::Request gets a filehandle for the upload and tells perl about it, however it forgot to tell Perl it was a readonly filehandle. So when perl does a backtik or system operation it tries to flush all filehandles, this include trying to flush the readonly filehandle it thought was writeable. This lead to a segfault depending on what data was in there. Apache::Request 1.1 fixes this by importing the filehandle as readonly. Arthur