linux-kernel - Re: sata_nv issues with MCP51 SATA controller

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Date:	Sat, 15 Sep 2007 10:47:46 -0400
From:	"John Stoffel" <john@...ffel.org>
To:	Jon Ivar Rykkelid <jonry@....org>
Cc:	linux-kernel@...r.kernel.org, Prakash Punnoor <prakash@...noor.de>,
	Robert Hancock <hancockr@...w.ca>,
	Tejun Heo <htejun@...il.com>, Jeff Garzik <jeff@...zik.org>
Subject: Re: sata_nv issues with MCP51 SATA controller

>>>>> "Jon" == Jon Ivar Rykkelid <jonry@....org> writes:

Jon> Prakash Punnoor wrote:
>> I don't have exaclty the same hw, but the same chipset and I don't have any 
>> problems - even with the swncq patch applied. Do you have an hpet? If not, 
>> try booting with acpi_use_time_override. My system won't work with skipping 
>> the override.

Jon> Hi , I reconnected and rebooted with the kernel option
Jon> "acpi_use_timer_override" (this is the correct spelling, isn't
Jon> it? - Kernel didn't complain.). Didn't help, the same error
Jon> received as before. - I'll have to connect all disks back to my
Jon> PCI-connected SATA controllers and start rebuilding my RAID yet
Jon> again.

What happens when you just have ONE disk connected to the motherboard
controller, and the rest connected to PCI controllers?  Does it crap
out then?  You've just such a nice repeatable problem across
motherboards that it's a shame to waste this debugging time.

I'm wondering if it's a PCI bus issue somehow, and that the load on
the motherboard controller isn't supportable when you have a bunch of
disks on PCI controllers as well.  Shot in the dark...

Thanks for all your hard work on this, I know how frustrating it is to
not have a stable system!

John
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