-----Original Message-----
From: Mark Lord [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, November 14, 2007 12:57 PM
To: Morrison, Tom
Cc: Jeff Garzik; linux-ide@vger.kernel.org; [EMAIL PROTECTED]
Subject: Re: 2.6.23.1 - sata_mv (7042) hang with large file operations

Morrison, Tom wrote:
> 
<snip >
> The problem comes ONLY when I am doing large file operations 
> (e.g.: just copying a file) to/from the SATA drives behind 
> the subject line 7042....it just hangs after about 10-15 
> seconds into the copy...
> 
> How large a file causes the hang - you ask - well, somewhere 
> between 100Meg & 500Meg...
> 
<snip other drivel>


::: Can you give me exact details of how to set up and reproduce this?
:::  -- Kernel version

        Linux-2.6.23.1

        NOTE: I am using ppc (arch/ppc instead of arch/powerpc)

:::  -- number/config/model of drives

        2x250GIG Western Digital - 3 partitions (largest (/dev/sda3
        ~200Gig - formatted to ext2).

        7042 PEX on a MPC8548 Board

:::  -- exact command line sequence to cause the failure

        NFS mount root file system (I am currently rebuild to take away
        the NFS file system dependency) - /dev/sda3 is drive in
question...

                a) mount /dev/sda3 /mnt/src 
                b) cp large_500Meg_file /mnt/src/.

==========================================================
==========================================================
NOTE: this does NOT fail on a 2.6.11 kernel version!!!!
        So I do NOT think it's a hardware problem!

        It could be a PEX related problem with arch/ppc - I would
        expect under heavy pounding with smaller files it would
        fail as well - but it does NOT)
==========================================================
==========================================================

Anything else you need to know?

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