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Date: Fri, 20 Aug 1999 11:06:03 -0700 (PDT)
From: <timlee@xpeed.com>
Reply-To: timlee@netcom.com
To: FreeBSD-gnats-submit@freebsd.org
Subject: NFS hangs if written through self-mount
X-Send-Pr-Version: 3.2

>Number:         13270
>Category:       kern
>Synopsis:       NFS hangs if written through self-mount
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    dillon
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Aug 20 11:10:01 PDT 1999
>Closed-Date:    Mon Mar 5 11:19:06 PST 2001
>Last-Modified:  Mon Mar 05 11:20:26 PST 2001
>Originator:     Timothy J. Lee
>Release:        FreeBSD 3.2-19990726-STABLE i386
>Organization:
Xpeed, Inc.
>Environment:

	FreeBSD 3.2-19990726-STABLE i386
	AMD K6-2 350 MHz processor, Asus P5A motherboard, 64 MB
	Tekram DC390F SCSI controller, IBM UltraStar 9ES SCSI disks
	(4 GB and 9 GB).
	Default NFS client and server parameters.

>Description:

	NFS hangs during large write through self-NFS mount.
	Couldn't figure out how to fix it without rebooting
	(was able to login (as root) at the console, but not
	(as non-root) through the network).

>How-To-Repeat:

	Mount an NFS exported filesystem to the same computer.
	Write a large file through the NFS mount (for example,
	do a mkisofs of a Red Hat 6.0 Linux image with -o pointing
	to a file on the self-NFS mount).

>Fix:
	
	Workaround is to avoid writing through self-NFS mounts.
	Don't know what actual fix is.


>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->analyzed 
State-Changed-By: dillon 
State-Changed-When: Wed Sep 29 10:29:12 PDT 1999 
State-Changed-Why:  
This is a known problem which we believe we have fixed in -current (4.x) 
but which we have not fixed in -stable (3.x).  It may not be possible to 
fix this problem in -stable.   

I've marked the bug report as analyzed but am leaving it open either 
until we find a way to fix in -stable, or until we rotate major releases 
again. 


Responsible-Changed-From-To: freebsd-bugs->dillon 
Responsible-Changed-By: dillon 
Responsible-Changed-When: Wed Sep 29 10:29:12 PDT 1999 
Responsible-Changed-Why:  
responsibility shifted to NFS maintainer 

From: Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
To: <freebsd-gnats-submit@freebsd.org>, <dillon@freebsd.org>
Cc: <timlee@netcom.com>
Subject: Re: kern/13270: NFS hangs if written through self-mount
Date: Wed, 3 Jan 2001 16:56:49 +0100 (CET)

 > State-Changed-From-To: open->analyzed
 > State-Changed-By: dillon
 > State-Changed-When: Wed Sep 29 10:29:12 PDT 1999
 > State-Changed-Why:
 > This is a known problem which we believe we have fixed in -current (4.x)
 > but which we have not fixed in -stable (3.x).  It may not be possible to
 > fix this problem in -stable.
 >
 > I've marked the bug report as analyzed but am leaving it open either
 > until we find a way to fix in -stable, or until we rotate major releases
 > again.
 
 So, should this be closed know?
 
 Gerald
 -- 
 Gerald "Jerry" pfeifer@dbai.tuwien.ac.at http://www.dbai.tuwien.ac.at/~pfeifer/
 
 
State-Changed-From-To: analyzed->closed 
State-Changed-By: dillon 
State-Changed-When: Mon Mar 5 11:19:06 PST 2001 
State-Changed-Why:  
Recently committed fixes to 4.x and 5.x which should solve the 
self-mount problems. 


http://www.freebsd.org/cgi/query-pr.cgi?pr=13270 
>Unformatted:
