Hi everyone

Thank you for the info Juergen. I'm not really sure how to do the update,
is there anyone that can help me with this?

Thank you

Ruben


On Wed, Aug 21, 2013 at 10:39 AM, Jürgen Beisert <[email protected]> wrote:

> Hi all,
>
> On Wednesday 26 June 2013 11:42:54 Jürgen Beisert wrote:
> > please be aware of a kernel bug which is part of the Linux kernel as of
> > Linux-3.5 (commit b9d4d42ad901cc848ac87f1cb8923fded3645568). This change
> > tries to defer the required cache flush when a context switch happens
> > (which improve the overall system speed). But it can fail in environments
> > where many threads are running. When it fails the running application
> > crashes due to
> > inconsistency between the cache and memory content at random locations.
> >
> > There's a fix on its way to mainline. I will include it into the BSP
> > repository as soon as it is available for all kernels since 3.5.
> >
> > I will keep you informed.
>
> After the fix has hit mainline, also the stable releases now contain the
> fix. I
> pushed all the fixes yesterday to the Mini2440 repository. It now includes
> the
> fix from the stable release for Linux-3.10 and also for all kernels back to
> Linux-3.5.
>
> All users of Linux-3.5 or later should update, to avoid unpredictable
> crashes
> when using threads in their application.
>
> Regards,
> Juergen
>
> --
> Pengutronix e.K.                              | Juergen Beisert
>   |
> Linux Solutions for Science and Industry      | http://www.pengutronix.de/ |
>
>

Reply via email to