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

[Mark Lord <liml@rtr.ca>]

Morrison, Tom wrote:
> -----Original Message-----
> From: Mark Lord [mailto:liml@rtr.ca] 
> Sent: Wednesday, November 14, 2007 12:57 PM
> To: Morrison, Tom
> Cc: Jeff Garzik; linux-ide@vger.kernel.org; linux-kernel@vger.kernel.org
> 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)?