X-Spam-Check-By: sourceware.org Message-ID: <44BD95B2.2090500@cygwin.com> Date: Tue, 18 Jul 2006 22:15:14 -0400 From: "Larry Hall (Cygwin)" Reply-To: cygwin AT cygwin DOT com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20060112 Fedora/1.5-1.fc4.remi Thunderbird/1.5 Mnenhy/0.7.4.0 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: Perl failure References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Bruce Dobrin wrote: > Hi, > I stripped down the code to a small testable bit. The problem seems to > occur when I reach 256 forks on a cygwin1.5.18 or 19 but not on my > cygwin1.5.5. win2k system. The original code give the forked process > time to finish, but it still looks like it eats it after about 256 > iterations ( it actually failed between 259 and 252 iterations, but > it's pretty complicated so I'm not sure what else was happening). > > Here is my test code: > dobrin AT tiburon:/tmp> cat test8.pl > ################ > #!/usr/bin/perl -w > > use strict; > my $pid; > > foreach my $incr (`seq 1 1 800`) { > > unless (defined ($pid = fork)) { > die " cannot fork $!"; > } > unless ($pid) { > print " the sequence is $incr \n"; > exit; > } > print "pid is $pid\n"; > } > > ############### > > The error here is : > cannot fork Resource temporarily unavailable at ./test8.pl line 11. > panic: MUTEX_LOCK (45) [op.c:354]. > > On cygwin1.5.5 it finishes successfully. I'm not sure if there is > anything else I can try, I'm looking around for some other machines > with older cygwins on them to establish what version it stopped working > in. It may make more sense to move forward and see if the problem still exists in a snapshot version - . -- Larry Hall http://www.rfk.com RFK Partners, Inc. (508) 893-9779 - RFK Office 216 Dalton Rd. (508) 893-9889 - FAX Holliston, MA 01746 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/