From nobody@hyperreal.org  Thu Jul 10 07:40:29 1997
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Date: Thu, 10 Jul 1997 07:40:29 -0700 (PDT)
From: David Bronder <David-Bronder@uiowa.edu>
Reply-To: David-Bronder@uiowa.edu
To: apbugs@hyperreal.org
Subject: Serialized accepts (USE_FCNTL_SERIALIZED_ACCEPT) for AIX
X-Send-Pr-Version: 3.2

>Number:         849
>Category:       os-aix
>Synopsis:       Serialized accepts (USE_FCNTL_SERIALIZED_ACCEPT) for AIX
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    apache
>State:          closed
>Class:          change-request
>Submitter-Id:   apache
>Arrival-Date:   Thu Jul 10 07:50:01 1997
>Last-Modified:  Fri Oct 24 18:53:35 PDT 1997
>Originator:     David-Bronder@uiowa.edu
>Organization:
>Release:        1.2.x
>Environment:
AIX 4.1.x, vendor compiler
>Description:
The default configuration in conf.h for AIX does not specify any locking method
for serialized accepts.  This results in the behavior described in PR#467.  The
correct #define appears to be USE_FCNTL_SERIALIZED_ACCEPT.  This resolves
PR#467 for the AIX 4.1 (and probably 4.2) platform.

This also is (IMHO) the correct resolution to PR#197 (rather than the #ifdef AIX
in mod_rewrite.h).
>How-To-Repeat:
See PR#467.
>Fix:
Add #define USE_FCNTL_SERIALIZED_ACCEPT to AIX section of conf.h
>Audit-Trail:
State-Changed-From-To: open-analyzed
State-Changed-By: marc
State-Changed-When: Thu Jul 10 20:58:29 PDT 1997
State-Changed-Why:
I am concerned about older versions of AIX like 3.x.  They
will need to be investigated, and possibly seperated out,
before changing this.

Thanks for the report.

From: Marc Slemko <marcs@znep.com>
To: apbugs@apache.org
Subject: Re: os-aix/849: Serialized accepts (USE_FCNTL_SERIALIZED_ACCEPT) for AIX (fwd)
Date: Mon, 14 Jul 1997 09:00:17 -0600 (MDT)

 
 
 
 ---------- Forwarded message ----------
 Date: Mon, 14 Jul 1997 09:49:03 -0500 (CDT)
 From: David Bronder <David-Bronder@uiowa.edu>
 To: Marc Slemko <marc@hyperreal.org>, apache-bugdb@apache.org
 Subject: Re: os-aix/849: Serialized accepts (USE_FCNTL_SERIALIZED_ACCEPT) for AIX
 
 Marc Slemko said:
 > 
 > Synopsis: Serialized accepts (USE_FCNTL_SERIALIZED_ACCEPT) for AIX
 > 
 > I am concerned about older versions of AIX like 3.x.  They
 > will need to be investigated, and possibly seperated out,
 > before changing this.
 
 I built 1.2.1 under AIX 3.2.5 using USE_FCNTL_SERIALIZED_ACCEPT and
 ran the server, configured with 4 Listen directives.  Running over
 the weekend with a light load across all ports (~540 reqs/hour total)
 for 3 1/2 days, I didn't see any problems.
 
 I don't know if that's sufficient for the starvation to show, and it
 isn't a comprehensive test of the server, but it does show that the
 server appears to function alright with that #define.
 
 -- 
 Hello World.                                     David Bronder - System Admin
 Segmentation Fault                                     ITS-SPA, Univ. of Iowa
 Core dumped, disk trashed, quota filled, soda warm.   David-Bronder@uiowa.edu
 
State-Changed-From-To: analyzed-closed
State-Changed-By: dgaudet
State-Changed-When: Fri Oct 24 18:53:35 PDT 1997
State-Changed-Why:
1.3b3 will default to using USE_FCNTL_SERIALIZED_ACCEPT on all
AIX boxes.

Dean
>Unformatted: