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Date: Sun, 20 Jul 2003 15:37:00 -0400 (Eastern Daylight Time)
From: Joshua Slive <joshua@slive.ca>
To: dev@httpd.apache.org
Subject: Re: [users@httpd] Re: Perl Processes "Zombie-Out"... (fwd)
Message-ID: <Pine.WNT.4.56.0307201534100.1052@bronfman504>
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For those who don't monitor the users list or bug database: There was a
regression in 1.3.28 that causes zombie cgi processes.

I haven't looked at any of the details.

Joshua.


---------- Forwarded message ----------
Date: 20 Jul 2003 14:58:08 -0400
From: J. Nick Koston <nick@cpanel.net>
Reply-To: users@httpd.apache.org
To: users@httpd.apache.org
Subject: Re: [users@httpd] Re: Perl Processes "Zombie-Out"...

I've posted a better patch to

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21737

I've also explained why this happens on the bug.

/Nick

On Sun, 2003-07-20 at 13:51, J. Nick Koston wrote:
> Here is what I know so far
>
> 1. Its a bug in 1.3.28, 1.2.37 is NOT AFFECTED.
> 2. This appears to only happen when using suexec (I have not tested that
> theory yet though)
> 3. The bug is in src/main/alloc.c.
> 4. The attached patch which has been backported from 1.3.27 fixes the
> problem.
> 5. This should be considered serious enough to release 1.3.29 as I've
> watched about 10 systems spiral down to their doom as a result of this.
> 6.  A Quick How to replicate the problem:
>
> a) Put a this script in your cgi-bin
> --cut here--
> #!/usr/bin/php
> <?php phpinfo(); ?>
> --cut here--
>
> b) Go to it your web browser.  Click reload over and over again (this
> will eventually cause a sigpipe).
>
> c) watch the zombies build up
>
> Thanks!
> /Nick
>
> On Sun, 2003-07-20 at 13:13, Joshua Slive wrote:
> > To start, you need to identify exactly what version of apache you are
> > running.
> >
> > I've seen a couple reports in the apache bug database of zombie cgi
> > scripts after upgrading from 1.3.27 to 1.3.28.  Is that your case, or did
> > the problem exist with earlier versions?
> >
> > Joshua.