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Date: Wed, 25 Apr 2001 07:41:48 -0700 (PDT)
From: george@omniti.com
To: freebsd-gnats-submit@FreeBSD.org
Subject: process doing mmap() over nfs hangs in vmopar or objtrm
X-Send-Pr-Version: www-1.0

>Number:         26840
>Category:       kern
>Synopsis:       process doing mmap() over nfs hangs in vmopar or objtrm
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Apr 25 07:50:01 PDT 2001
>Closed-Date:    Fri Oct 10 23:31:01 PDT 2003
>Last-Modified:  Fri Oct 10 23:31:01 PDT 2003
>Originator:     George Schlossnagle
>Release:        3.4/3.5/4.1
>Organization:
Omniti
>Environment:
FreeBSD bp117.blackplanet.com 3.5-STABLE FreeBSD 3.5-STABLE #1: Sun Apr  1 16:57:28 EDT 2001     root@bp117.blackplanet.com:/usr/src/sys/compile/CCI_KERNEL  i386
>Description:
Under high throughput NFS, our webserver process (thttpd) consistently hangs in vmopar or objtrm.
The process get's stuck, can't be killed, and the machine must be rebooted.
>How-To-Repeat:
Run thttpd mounting an NFS doc root.  Generate 10-20Mb of sustained web traffic and start changing files on the shared mount point.
>Fix:

>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: dwmalone 
State-Changed-When: Wed Apr 25 08:02:45 PDT 2001 
State-Changed-Why:  


http://www.freebsd.org/cgi/query-pr.cgi?pr=26840 
State-Changed-From-To: closed->open 
State-Changed-By: dwmalone 
State-Changed-When: Wed Apr 25 08:04:18 PDT 2001 
State-Changed-Why:  
This PR should be open. 

Some vmopar hangs were fixed for the 4.2 release of FreeBSD, but 
some still remain. It is probably worth upgrading to 4.2 or 4.3 to 
see how much your situation improves. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=26840 
State-Changed-From-To: open->feedback 
State-Changed-By: silby 
State-Changed-When: Sat Jan 5 14:30:36 PST 2002 
State-Changed-Why:  
Many NFS fixes were recently committed to 4.4-stable.  Please 
update to the latest version of the -stable branch and see 
if the problems you encountered still exist. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=26840 
Responsible-Changed-From-To: freebsd-bugs->dillon 
Responsible-Changed-By: silby 
Responsible-Changed-When: Tue Jan 8 17:49:32 PST 2002 
Responsible-Changed-Why:  
Over to Mr. NFS, Dillon 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=26840 
Responsible-Changed-From-To: dillon->freebsd-bugs 
Responsible-Changed-By: keramida 
Responsible-Changed-When: Sat Feb 22 18:15:54 PST 2003 
Responsible-Changed-Why:  
Back to the free pool. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=26840 
State-Changed-From-To: feedback->closed 
State-Changed-By: kris 
State-Changed-When: Fri Oct 10 23:30:53 PDT 2003 
State-Changed-Why:  
Feedback timeout 

http://www.freebsd.org/cgi/query-pr.cgi?pr=26840 
>Unformatted:
