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Date: Wed, 21 Jan 2004 20:42:41 -0800 (PST)
From: Paul-Andrew Joseph Miseiko <esoteric@teardrop.ca>
To: freebsd-gnats-submit@FreeBSD.org
Subject: Random "bus errors".
X-Send-Pr-Version: www-2.0

>Number:         61705
>Category:       i386
>Synopsis:       [ntp] Random "bus errors" on 5.2-RELEASE
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    linimon
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jan 21 20:50:13 PST 2004
>Closed-Date:    Fri Apr 08 05:37:47 GMT 2005
>Last-Modified:  Fri Apr 08 05:37:47 GMT 2005
>Originator:     Paul-Andrew Joseph Miseiko
>Release:        FreeBSD 5.2R
>Organization:
>Environment:
FreeBSD teardrop.ca 5.2-RELEASE FreeBSD 5.2-RELEASE #9: Wed Jan 21 21:10:58 EST 2004     esoteric@teardrop.ca:/usr/src/sys/i386/compile/TEARDROP  i386
>Description:
I have noticed that after loading NTP (4.2) on FreeBSD 5.2R I will get
occasional, completely random, bus errors (i.e. a program will die with
a signal 10).  It only appears to happen to programs executed after the
loading of the NTP daemon (I have not witnessed any applications die
from a signal 10 if they had been operational before the NTP daemon
was loaded).  On a twist of events I have noticed the bus errors
slowly disappear as the system progresses away from the loading of the
NTP daemon (though it is still resident and operational); reloading it
will once again present the problem in full force.
>How-To-Repeat:
Kill your NTP Daemon after booting up then reload it.  Perform several
operations relatively fast and an occasional "bus error (core dumped)"
will occur.  I used "host" and looked up the same domain relatively
fast however I have had "tail", "cat", "ntpq", "ntpdc", and "ee" crash
with the same aforementioned signal.

This problem is reproducable with the NTP shipped with the operating
system (though in any event no NTP version should be capable of doing this).
>Fix:
Unknown.
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: linimon 
State-Changed-When: Thu Apr 7 22:20:37 GMT 2005 
State-Changed-Why:  
Is this still a problem with modern versions of FreeBSD? 


Responsible-Changed-From-To: freebsd-i386->linimon 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Thu Apr 7 22:20:37 GMT 2005 
Responsible-Changed-Why:  

http://www.freebsd.org/cgi/query-pr.cgi?pr=61705 
State-Changed-From-To: feedback->closed 
State-Changed-By: linimon 
State-Changed-When: Fri Apr 8 05:37:04 GMT 2005 
State-Changed-Why:  
Submitter is no longer able to reproduce the problem. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=61705 
>Unformatted:
