From hsu@cantina.clinet.fi  Thu Feb 12 04:45:14 1998
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Date: Thu, 12 Feb 1998 14:45:35 +0200 (EET)
From: Heikki Suonsivu <hsu@clinet.fi>
Reply-To: hsu@clinet.fi
To: FreeBSD-gnats-submit@freebsd.org
Subject: NFS hangs
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>Number:         5728
>Category:       kern
>Synopsis:       NFS hangs
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    peter
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Feb 12 04:50:01 PST 1998
>Closed-Date:    Sun Dec 12 00:01:48 PST 1999
>Last-Modified:  Sun Dec 12 00:02:09 PST 1999
>Originator:     Heikki Suonsivu
>Release:        FreeBSD 2.2.5-STABLE i386
>Organization:
Clinet, Espoo, Finland
>Environment:

WWW server, NFS server and generic unix server running -STABLE.  This
problem has been around long time.

>Description:

hsu#cantina.clinet.fi Thu 5: ps axulwww | grep less
root     14063  0.0  0.5   276  576  pe- D     2:12PM    0:00.03 less access_log      0 14063 11543   3  -4  0   276  576 nfsvin D     pe-   0:00.03 less access_log
root     14192  0.0  0.4   236  540  p4  D+    2:16PM    0:00.02 less access_log      0 14192 14107   3  -4  0   236  540 nfsvin D+    p4    0:00.02 less access_log
root     14915  0.0  0.1   196   84  pc  R+    2:40PM    0:00.00 grep less            0 14915 14206  69  45  0   196   84 -      R+    pc    0:00.00 grep less

Stays there forever.

This almost always hits apache access logs, so this could have something to
do with the fact that one host writes to a file and another accesses it at
the same time, both over NFS.

This seems to be a client side problem, as I can still access the same file
fine from some other NFS client.

>How-To-Repeat:

I think running a WWW server and writing files over NFS should bring this
up. 

>Fix:



>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->peter 
Responsible-Changed-By: peter 
Responsible-Changed-When: Sat Apr 25 22:27:07 PDT 1998 
Responsible-Changed-Why:  
I'll take this one.. 
State-Changed-From-To: open->closed 
State-Changed-By: dillon 
State-Changed-When: Sun Dec 12 00:01:48 PST 1999 
State-Changed-Why:  
The NFS hanging bugs are believed to be fixed in later kernels (3.x and 4.x) 
>Unformatted:
