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Message-ID: <473B3ED9.40707@rtr.ca>
Date: Wed, 14 Nov 2007 13:30:49 -0500
From: Mark Lord <liml@....ca>
To: "Morrison, Tom" <tmorrison@...irix.com>
Cc: Jeff Garzik <jeff@...zik.org>, linux-ide@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: 2.6.23.1 - sata_mv (7042) hang with large file operations
Morrison, Tom wrote:
..
> ::: 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)
..
Okay. Is that 32-bit or 64-bit? How much RAM ?
My PPC machine is not currently set up for Linux,
and has only PCIX (not PCIe) slots, so I'll try this
first on an x86-32 box with PCIe.
If it works for me there, then I may be able to try
a PCIX card in my PPC-32 box later. The PCIX card
won't have a 7042 of course, so I'll use a 6081 instead.
Those earlier Marvell chips are supposed to be extremely similar.
>
> ::: -- 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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