Date: Wed, 31 Jul 2002 16:33:20 -0700 (PDT) From: Yury Izrailevsky <izrailev@yahoo.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/41216: Get "NFS append race" error Message-ID: <200207312333.g6VNXKXm018088@www.freebsd.org>
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>Number: 41216
>Category: kern
>Synopsis: Get "NFS append race" error
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Jul 31 16:40:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Yury Izrailevsky
>Release: FreeBSD 4.5 Stable
>Organization:
>Environment:
4.5-STABLE FreeBSD i386
>Description:
Console and /var/log/messages gets flooded with this message:
/kernel-4.5-generic: NFS append race @3e1c00:512
/kernel-4.5-generic: NFS append race @3e1c00:512
/kernel-4.5-generic: NFS append race @3e3a00:1024
/kernel-4.5-generic: NFS append race @3e3a00:1024
/kernel-4.5-generic: NFS append race @3e5800:1536
/kernel-4.5-generic: NFS append race @3e5800:1536
>How-To-Repeat:
Multi-thread application that appends and reads from ultiple files.
This error apparently gets triggered in /usr/src/sys/nfs/nfs_bio.c, line 967. Comments in the source code indicate that the race condition "might occur XXX". Is there a fix to this?
>Fix:
Looking for one.
>Release-Note:
>Audit-Trail:
>Unformatted:
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