From: Michael Frank <mflt1@micrologica.com.hk>
To: Andrew Morton <akpm@digeo.com>
Subject: NFS io errors on transfer from system running 2.4 to system running 2.5
Date: Tue, 3 Jun 2003 19:12:51 +0800
User-Agent: KMail/1.5.2
Cc: linux-kernel@vger.kernel.org
MIME-Version: 1.0
Content-Type: text/plain;
  charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200306031912.53569.mflt1@micrologica.com.hk>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1259
Lines: 40

Speaking of weird errors:

For the last few months I encounter this:

When doing rsync or cp _from_ system running 2.4 _to_ system running 2.5 
get Input/output error errors with random files.

- 2-5 > 2.4 is OK!
- SRebootting, swapping kernel causes the error on the system running 2.4    
- Fast machine > slow machine or slow machine > fast machine
  is no different
- Both systems run same distribution 
- Encountered since 2.4.20 with about 2.5.64 (my first 2.5 kernel)

Example:

/temp contains a couple of crap files

system mhfl2 is running 2.5.6x to 2.5.70-mm3 mounted on
/mnt/mhfl2.

On system running 2.4.20 or 2.4.21-x:
  while ((1)); do cp -f /temp/* /mnt/mhfl2/temp; done

cp: cannot create regular file `/mnt/mhfl2/temp/blah: Input/output error
cp: writing `/mnt/mhfl2/temp/blah: Input/output error

Errors are random, so the files change every run, sometimes there are no errors,
sometimes thre are 3 errors

Q? Any (in)compatibility reason or should I investigate further?

Regards
Michael Frank 

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/