Re: 2.6.23.1 - sata_mv (7042) hang with large file operations

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Morrison, Tom wrote:
-----Original Message-----
From: Mark Lord [mailto:liml@xxxxxx] Sent: Wednesday, November 14, 2007 12:57 PM
To: Morrison, Tom
Cc: Jeff Garzik; linux-ide@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
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...
..

MMmm.. I'd like to see that again without the rootfs-on-NFS.

What exactly do you mean when you say "it just hangs" ?
Everything (dead system)?


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