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From: Michael Barnwell <xterminate@xterminate.me.uk>
To: Jan Kara <jack@ucw.cz>
Cc: reiserfs-list@namesys.com
Subject: Re: Data being corrupted on reiserfs 3.6
Date: Sun, 15 Jan 2006 21:36:20 +0000	[thread overview]
Message-ID: <43CAC054.5020104@xterminate.me.uk> (raw)
In-Reply-To: <20060115204143.GC24752@atrey.karlin.mff.cuni.cz>

Hi,

Jan Kara wrote:

<snip>
>   Hmm, that is really strange. Do the files have the same size? Do you
> get an error also if you just create file full of zeros? If so, how do
> the differences look like (e.g. any signs of flipped bits or so?).
> 

michael@biggs:/tmp$ dd bs=1024 count=1000k if=/dev/zero of=./1GB.tst
1024000+0 records in
1024000+0 records out
1048576000 bytes transferred in 61.578769 seconds (17028207 bytes/sec)
michael@biggs:/tmp$ ls -l 1GB.tst
-rw-r--r--  1 michael michael 1048576000 2006-01-15 20:51 1GB.tst
michael@biggs:/tmp$ md5sum 1GB.tst
e5c834fbdaa6bfd8eac5eb9404eefdd4  1GB.tst
michael@biggs:/tmp$ ls -l /home/michael/1GB.tst
-rw-r--r--  1 michael michael 1048576000 2006-01-15 20:54 
/home/michael/1GB.tst
michael@biggs:/tmp$ md5sum /home/michael/1GB.tst
92c51557041ebd6424b4467a878c9f44  /home/michael/1GB.tst

I looked at the file in /home/michael/1GB.tst with xdd for about 5 
minutes but couldn't see anything but zeros - I'm not sure how to search 
through a binary file for non-zero bytes.

So yes, error if the file is all zeros and they have the same size.

Thanks,

Michael Barnwell.

  reply	other threads:[~2006-01-15 21:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-14 22:41 Data being corrupted on reiserfs 3.6 Michael Barnwell
2006-01-15 20:41 ` Jan Kara
2006-01-15 21:36   ` Michael Barnwell [this message]
2006-01-15 22:29     ` Pierre Etchemaïté
2006-01-15 23:02       ` Michael Barnwell
2006-01-16  9:45     ` Hans Reiser
2006-01-16 10:41     ` Jan Kara
2006-01-22 12:12       ` Michael Barnwell
2006-01-24 14:09         ` Jan Kara
2006-01-24 17:59         ` Barry K. Nathan

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