Ocfs2 devel - Aug 2004 - data inconsistency when write in a memory map way

Hi all

for beta 4 release, on kernel 2.4.x

steps to duplicate:

1.on node a, write to a file residing on a ocfs2 partition in a way of
memory 

map

2.then on node b , check the writtent data but nothing will be found.

It is ok if I use a normal way to write file and check on another node.

Any ideas on it.

BTW, the issue has been reported as bug#124 to oss.oracle.com

Thanx.


Aaron

Intel China Software Lab

Tel:  8621-52574545 Ext.1587

E_mail:yukun.chen@intel.com

On Wed, Aug 11, 2004 at 05:38:10PM +0800, Chen, Yukun
wrote:
> 1.on node a, write to a file residing on a ocfs2 partition in a way of
> memory 
> 
> map
> 
> 2.then on node b , check the writtent data but nothing will be found.
	Try using msync() on the memory map after writing to it.

Joel

-- 

 "I'm living so far beyond my income that we may almost be said
 to be living apart."
         - e e cummings

Joel Becker
Senior Member of Technical Staff
Oracle Corporation
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127

This is also for 2.6 kernel and also for normal read/write as I reported
yestoday.
>-----Original Message-----
>From: ocfs2-devel-bounces@oss.oracle.com=20
>[mailto:ocfs2-devel-bounces@oss.oracle.com] On Behalf Of Chen, Yukun
>Sent: 2004=C4=EA8=D4=C211=C8=D5 2:38
>To: ocfs2-devel@oss.oracle.com
>Subject: [Ocfs2-devel] data inconsistency when write in a=20
>memory map way
>
>Hi all
>
>for beta 4 release, on kernel 2.4.x
>
>steps to duplicate:
>
>1.on node a, write to a file residing on a ocfs2 partition in a way of
>memory=20
>
>map
>
>2.then on node b , check the writtent data but nothing will be found.
>
>It is ok if I use a normal way to write file and check on another node.
>
>Any ideas on it.
>
>BTW, the issue has been reported as bug#124 to oss.oracle.com
>
>Thanx.
>
>
>Aaron
>
>Intel China Software Lab
>
>Tel:  8621-52574545 Ext.1587
>
>E_mail:yukun.chen@intel.com
>
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