Messages in this thread | | | Date | Wed, 24 Feb 2010 22:45:43 -0500 | From | Jeff Garzik <> | Subject | Re: [PATCH] ahci: disable FPDMA auto-activate optimization on NVIDIA AHCI |
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On 01/26/2010 11:33 PM, Robert Hancock wrote: > Mike Cui reported that his system with an NVIDIA MCP79 (aka MCP7A) chipset > stopped working with 2.6.32. The problem appears to be that 2.6.32 now enables > the FPDMA auto-activate optimization in the ahci driver. The drive works fine > with this enabled on an Intel AHCI so this appears to be a chipset bug. > Since MCP79 is a fairly recent NVIDIA chipset and we don't have any info on > whether any other NVIDIA chipsets have this issue, disable FPDMA AA optimization > on all NVIDIA AHCI controllers for now. > > Should address http://bugzilla.kernel.org/show_bug.cgi?id=14922 > > Signed-off-by: Robert Hancock<hancockrwd@gmail.com> > > --- > > Mike, can you test this out and make sure this resolves the problem for you?
applied
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