From nobody@hyperreal.com  Tue Oct  8 16:03:28 1996
Received: by taz.hyperreal.com (8.7.6/V2.0) id QAA11756; Tue, 8 Oct 1996 16:03:28 -0700 (PDT)
Message-Id: <199610082303.QAA11756@taz.hyperreal.com>
Date: Tue, 8 Oct 1996 16:03:28 -0700 (PDT)
From: Paul Sutton <paul@ukweb.com>
Reply-To: paul@ukweb.com
To: apbugs@hyperreal.com
Subject: graceful restarts with -USR1 causes instability
X-Send-Pr-Version: 3.2

>Number:         15
>Category:       general
>Synopsis:       graceful restarts with -USR1 causes instability
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    apache
>State:          closed
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Tue Oct  8 16:10:01 1996
>Last-Modified:  Sun Dec  1 12:33:54 PST 1996
>Originator:     paul@ukweb.com
>Organization:
>Release:        1.2-dev
>Environment:
all?
>Description:
Attempting to use graceful restarts with -USR1 functionality causes some
instability - repeated -USR1's can fail, and a USR1 followed by a HUP kills
the server dead.
 
>How-To-Repeat:
the
following code can be used to test it

  while :
  do
   kill -USR1 pid
  done

On both Linux and IRIX I can get this to give a failed assertion in the
listener code (it might not affect non-listener systems, I suppose).
>Fix:
an easy fix seems to be to ignore USR1 during a restart, though that wouldn't
fix the USR1-HUP interaction problem.
%0
>Audit-Trail:
State-Changed-From-To: open-closed
State-Changed-By: brian
State-Changed-When: Sun Dec  1 12:33:53 PST 1996
State-Changed-Why:
Patches have been implemented to clean up the hosage.
>Unformatted: