Re: [PATCH] staging: tidspbridge: protect dmm_map properly

[Ohad Ben-Cohen]

On Mon, Mar 7, 2011 at 8:02 PM, Felipe Contreras
<felipe.contreras@xxxxxxxxx> wrote:
> On Mon, Dec 20, 2010 at 7:12 PM, Felipe Contreras
> <felipe.contreras@xxxxxxxxx> wrote:
>> We need to protect not only the dmm_map list, but the individual
>> map_obj's, otherwise, we might be building the scatter-gather list with
>> garbage. So, use the existing proc_lock for that.
>>
>> I observed race conditions which caused kernel panics while running
>> stress tests. This patch fixes those.
>
> I just heard that Tuomas Kulve is getting a lot of panics on Gumstix
> Overo. I propose we apply this patch on the stable tree ASAP, and if
> there's no better proposals, also on .38.

Agree that a fix should be merged asap, and I don't mind which.
Especially since things have changed lately and chances that we will
use this code for OMAP4 too are really small now.
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