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Date:      Sat, 25 May 2002 10:22:24 +0800
From:      Eugene Grosbein <eugen@grosbein.pp.ru>
To:        Matthew Dillon <dillon@apollo.backplane.com>
Cc:        stable@FreeBSD.ORG
Subject:   Re: NFS problem with 4.6-PRERELEASE: SIGBUG in Apache
Message-ID:  <20020525102224.A43047@svzserv.kemerovo.su>
In-Reply-To: <200205242137.g4OLbFmi058923@apollo.backplane.com>; from dillon@apollo.backplane.com on Fri, May 24, 2002 at 02:37:15PM -0700
References:  <3CEE5094.EFF31B42@grosbein.pp.ru> <200205242137.g4OLbFmi058923@apollo.backplane.com>

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On Fri, May 24, 2002 at 02:37:15PM -0700, Matthew Dillon wrote:

>     If another NFS client or the NFS server rips the file out from
>     under Apache while Apache is trying to access the data via mmap(),
>     then Apache will most certainly seg-fault. 

Well, that had not occured till 4.6-PRERELEASE.
How can that be avoided?
 
>     The file in question appears to be /mnt/main/netstat/index.html.

Exactly.

>     So the question is:  Are you modifying, copying, overwriting, or
>     deleting this file on a different nfs client or on the server?

NFS server updates this file often.

Eugene Grosbein


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