From judgea@relay-mgr.indigo.ie  Mon Nov 10 07:12:22 1997
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Date: 10 Nov 1997 15:12:12 -0000
From: Alan.Judge@indigo.ie
Reply-To: Alan.Judge@indigo.ie
To: FreeBSD-gnats-submit@freebsd.org
Subject: NFS related kernel crash
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>Number:         4996
>Category:       kern
>Synopsis:       NFS crash, possibly related to file bigger than 2^31 bytes
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    peter
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 10 07:20:01 PST 1997
>Closed-Date:    Sat Dec 11 22:25:18 PST 1999
>Last-Modified:  Sat Dec 11 22:26:03 PST 1999
>Originator:     Alan Judge
>Release:        FreeBSD 2.2.5-RELEASE i386
>Organization:
Indigo, Dublin, Ireland.
>Environment:

	2.2.5 box, with NetApp filer NFS V3/UDP mounted over 100BaseTX.

>Description:

	Kernel crashed with supervisor page fault in kernel mode.  Crashing
	process was nfsiod.  Traceback: 
		generic_bcopy
		nfs_writerpc
		nfs_doio
		nfssvc_iod
		nfssvc

	[BTW, is there any easy way to save what's printed and the traceback
	 in DDB, to avoid having to write these things down before rebooting?]

	The really suspicious thing is that this happened while I was copying
	a large file to the filer.  The resultant file was only 24K larger
	than 2^31, so I suspect that something blew up at 2^31 bytes.

	I don't have a core dump, but could probably repeat if needed.

>How-To-Repeat:

	Copy a file larger than 2GB over NFS?

>Fix:
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->peter 
Responsible-Changed-By: peter 
Responsible-Changed-When: Sat Apr 25 22:39:39 PDT 1998 
Responsible-Changed-Why:  
I'll take this.. 

From: Peter Wemm <peter@netplex.com.au>
To: FreeBSD-gnats-submit@FreeBSD.org, Alan.Judge@indigo.ie
Cc:  Subject: Re: kern/4996: NFS crash, possibly related to file bigger than 2^31 bytes
Date: Mon, 11 May 1998 19:18:19 +0800 (WST)

 Just asking a silly question..  Were you using cp to copy the >2G file, or was it some
 other program?
 
 Cheers,
 -Peter
 
 

From: Alan Judge <Alan.Judge@indigo.ie>
To: peter@netplex.com.au
Cc: FreeBSD-gnats-submit@FreeBSD.org
Subject: Re: kern/4996: NFS crash, possibly related to file bigger than 2^31 bytes 
Date: Mon, 11 May 1998 16:12:02 +0100

 It's a long time ago, so I can't remember for certain, but I think I
 was using cp to copy a huge file from local disk to NFS.
 --
 Alan

From: Alexander Langer <alex@cichlids.com>
To: freebsd-gnats-submit@freebsd.org, Alan.Judge@indigo.ie
Cc:  
Subject: Re: kern/4996: NFS crash, possibly related to file b
Date: Sun, 21 Nov 1999 15:16:12 +0100 (CET)

 I just dd's a 3 GB file from /dev/zero and copied it to my NFS server (-stable)
 My client is -current.
 
 Everything works fine.
 
 Maybe we can close this PR?
 
 Or does the problem still exist somewhere?
 
 Alex
 
 

From: Alan Judge <Alan.Judge@indigo.ie>
To: Alexander Langer <alex@cichlids.com>
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: kern/4996: NFS crash, possibly related to file b 
Date: Mon, 22 Nov 1999 10:36:09 +0000

 Works for me as well on STABLE.  My guess is that the bug was fixed
 somewhere along the line from 2.2.x up.
 
 I'd suggest closing the PR.
 --
 Alan
 
State-Changed-From-To: open->closed 
State-Changed-By: dillon 
State-Changed-When: Sat Dec 11 22:25:18 PST 1999 
State-Changed-Why:  
I believe this bug to be fixed in 3.x and 4.x releases (possibly also 2.2.x 
as well but I'm not sure). 
>Unformatted:
