Subject: Re: BUG in dma-mapping.h:218 // MESH SCSI driver not working

From: Benjamin Herrenschmidt <[email-masked]>
Date: Thu, 30 Jul 2009 09:32:38 +1000

On Wed, 2009-07-29 at 20:22 +0200, Stef Simoens wrote:
> 2.6.29 works OK
> 2.6.30-rc1 doesn't work (BUG...)
> 2.6.30-rc1 with your patch ... seems to hang when it should be
> mounting the root directory.
> 
> Is it worthwhile doing a git bisect?

It probably is, since it should work with my patch, so something else
changed, maybe in the SCSI stack.

One thing I know is that the MESH HW has "issues" that make it very
sensitive to alignment DMA buffers, it's possible that the SCSI stack no
longer aligns some stuff ?

Cheers,
Ben.