Kernel locks up after calling kernel_execve()

[Gerhard Pircher]

-------- Original-Nachricht --------
> Datum: Thu, 15 Nov 2007 08:54:32 +1100
> Von: Paul Mackerras <paulus at samba.org>
> An: "Gerhard Pircher" <gerhard_pircher at gmx.net>
> CC: benh at kernel.crashing.org, linuxppc-dev at ozlabs.org
> Betreff: Re: Kernel locks up after calling kernel_execve()

> No it's not just for ppc64.  We had a patch that went in some time ago
> to ensure that the M bit was set on various 32-bit platforms because
> otherwise we got data corruption (due to a small cache in the
> northbridge not being kept coherent with the processor cache).
Ah, I thought this was due to a CPU errata, where L2 cache prefetching
causes data corruption with the coherent bit set to 0.

Gerhard
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