[PATCH 4/5] SMP01: possible CPU race when using byte arrays

Sebastian Huber sebastian.huber at embedded-brains.de
Thu Oct 31 14:17:22 UTC 2013

On 2013-10-31 14:58, Daniel Hellstrom wrote:
> Switch to using 32-bit variable that works better on a
> 32-bit CPU. This does not solve the general SMP case
> though, would perhaps better to use an atomic set
> here.

In case a CPU doesn't support atomic 8-bit load/store operations it 
insufficient for SMP.

A proper fix would be to use atomic operations, which we don't support at the 

Sebastian Huber, embedded brains GmbH

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