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Re: xfs_fsr and mmap problems

Subject: Re: xfs_fsr and mmap problems
From: Michael Sinz <msinz@xxxxxxxxx>
Date: Wed, 21 Aug 2002 14:01:57 -0400
Cc: linux-xfs@xxxxxxxxxxx
References: <200208211010.21746.wns@slc.unisys.com>
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.1b) Gecko/20020813
Warren Stockton wrote:
Hi,

I found that running xfs_fsr introduces mmap problems (as detected by mapcheck)

I ran the following in single user mode:
(mapcheck -v /; xfs_fsr -v; mapcheck -v /) 2>&1 | tee /tmp/xfs.out

The kernel was a CVS version from last night built with gcc3.2

I have verified this - both with current (August 21 - AM CVS checkouts)

This has happened on:
Linux version 2.4.19-xfs (root@xxxxxxxxxxxxxxx) (gcc version 2.96 20000731 (Red 
Hat Linux 7.2 2.96-108.7.2)) #8 Wed Aug 21 12:13:21 EDT 2002
Linux version 2.4.19-xfs (root@xxxxxxxxxxxx) (gcc version 2.96 20000731 (Red 
Hat Linux 7.3 2.96-112)) #25 SMP Tue Aug 20 16:16:23 EDT 2002
Linux version 2.4.19-xfs (root@xxxxxxxxxxxx) (gcc version 2.96 20000731 (Red 
Hat Linux 7.3 2.96-112)) #13 Wed Aug 21 12:13:27 EDT 2002

(If need be I can try some others...)

On one system it did not happen but I think the system did not have
fragmentation problems.  (It is a minimal install anyway)

--
Michael Sinz -- Director, Systems Engineering -- Worldgate Communications
A master's secrets are only as good as
        the master's ability to explain them to others.



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