Date: Mon, 13 Oct 2003 16:38:36 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Mark <admin@asarian-host.net> Cc: freebsd-questions@freebsd.org Subject: Re: Do threads conflict? Message-ID: <20031013213836.GB21069@dan.emsphone.com> In-Reply-To: <200310132105.H9DL5K01086760@asarian-host.net> References: <200310132105.H9DL5K01086760@asarian-host.net>
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In the last episode (Oct 13), Mark said: > I just installed Sendmail::Milter, which I believe uses the ithreads > model for Perl. I created my own Milter (Perl-threaded 5.8.0), and > everything runs fine... Except that now, when the Milter is running, > tinyproxy 1.5.0 goes haywire, filling up its log like crazy with this > message: > > "Accept returned an error (Resource temporarily unavailable) ... retrying." > > The only thing tinyproxy and the Milter have in common, is that they > both use threads. > > Is there perhaps something that prevents both programs from using > threads? Perhaps the threads-enabled version of the daemonized perl > Milter keeps a shared library locked? So, now I can run either one or > the other, but not both. I use this on FreeBSD 4.7R. They shouldn't conflict. That sounds like a libc_r bug; I think the wrapper for accept() should retry the accept() call for the user. You might want to try updating to 4.8; there were a couple of important commits to libc_r that fixed bugs that usually affected threaded daemons: 2002-10-22 09:44 fjoe don't allow the uthread kernel pipe to use the same descriptors as stdio 2003-06-03 09:09 ru fix for a stale stdio descriptors flags bugs. -- Dan Nelson dnelson@allantgroup.com
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