NetBSD Problem Report #47340
From reinoud@13thmonkey.org Sun Dec 16 18:42:18 2012
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Message-Id: <20121216184217.1200433D4FF8@nas.13thmonkey.org>
Date: Sun, 16 Dec 2012 19:42:16 +0100 (CET)
From: reinoud@NetBSD.org
Reply-To: reinoud@NetBSD.org
To: gnats-bugs@gnats.NetBSD.org
Subject: NFS resend problem with stale NFS file handles
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>Number: 47340
>Category: kern
>Synopsis: NFS resend problem with stale NFS file handles
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Dec 16 18:45:01 +0000 2012
>Originator: Reinoud Zandijk
>Release: NetBSD 6.0_BETA2
>Organization:
NetBSD
>Environment:
Two NetBSD systems; this one, the NAS running the NFS server. The other
machine, heethofdje, mounts a /home with:
nas:/home /home nfs rw,soft,intr,tcp 0 0
'heethoofdje' runs: NetBSD heethoofdje.13thmonkey.org 6.0_BETA2 NetBSD 6.0_BETA2 (GENERIC) i386
`heethoofdje' runs a linux binary version of openoffice3-bin-3.2.1nb2
System: NetBSD nas.13thmonkey.org 6.0_BETA2 NetBSD 6.0_BETA2 (MARVELL_NAS) #6: Wed Jul 11 10:23:35 CEST 2012 root@nas.13thmonkey.org:/usr/sources/cvs.netbsd.org/src-6/sys/arch/evbarm/compile/MARVELL_NAS evbarm
Architecture: arm
Machine: evbarm
>Description:
In normal usage, OpenOffice crashed and started recovering a document
for restart probably.
The NAS became unresponsive; pinging/telnet to 80 worked but ssh and
named were almost not accessablei/usable. NFS iseems to work fine. It
turned out that the the network was flooding:
19:22:43.022146 IP 192.168.1.2.3203978003 > 192.168.1.1.nfs: 120 read fh 16,4/33664198 17720 bytes @ 0
19:22:43.022491 IP 192.168.1.1.nfs > 192.168.1.2.3203978003: reply ok 32 read ERROR: Stale NFS file handle
19:22:43.022533 IP 192.168.1.2.3203978004 > 192.168.1.1.nfs: 120 read fh 16,4/33664198 17720 bytes @ 0
19:22:43.022874 IP 192.168.1.1.nfs > 192.168.1.2.3203978004: reply ok 32 read ERROR: Stale NFS file handle
19:22:43.022916 IP 192.168.1.2.3203978005 > 192.168.1.1.nfs: 120 read fh 16,4/33664198 17720 bytes @ 0
19:22:43.023261 IP 192.168.1.1.nfs > 192.168.1.2.3203978005: reply ok 32 read ERROR: Stale NFS file handle
.....
etc. etc.
>How-To-Repeat:
Unknown
>Fix:
Explicit killing the hung OpenOffice fixed the storm.
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.39 2013/11/01 18:47:49 spz Exp $
$NetBSD: gnats_config.sh,v 1.8 2006/05/07 09:23:38 tsutsui Exp $
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