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

From: Felipe Contreras
Date: Mon Mar 07 2011 - 13:02:51 EST


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.

--
Felipe Contreras
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/