svn commit: r198341 - in head/sys: amd64/amd64 arm/arm arm/mv i386/i386 i386/xen ia64/ia64 kern mips/mips powerpc/aim powerpc/booke powerpc/include powerpc/powerpc sparc64/sparc64 sun4v/sun4v vm

[Rafal Jaworowski]

On 2009-10-21, at 20:38, Marcel Moolenaar wrote:

>  The key property of this change is that the I-cache is made coherent
>  *after* writes have been done. Doing it in the PMAP layer when adding
>  or changing a mapping means that the I-cache is made coherent  
> *before*
>  any writes happen. The difference is key when the I-cache prefetches.

Marcel, does this new approach help with your problems on MV-78xxx  
with SATA when executing binaries was failing with various signals  
etc. (and the suspicions were this was due to some i-cache incoherency)?

Rafal