On Fri, 2009-08-28 at 17:06 -0500, Brian King wrote: > The SLB can change sizes across a live migration, which was not > being handled, resulting in possible machine crashes during > migration if migrating to a machine which has a smaller max SLB > size than the source machine. Fix this by first reducing the > SLB size to the minimum possible value, which is 32, prior to > migration. Then during the device tree update which occurs after > migration, we make the call to ensure the SLB gets updated. Also > add the slb_size to the lparcfg output so that the migration > tools can check to make sure the kernel has this capability > before allowing migration in scenarios where the SLB size will change.
The patch causes a build error on 32-bit hash in rtas.c due to this: > diff -puN arch/powerpc/kernel/rtas.c~powerpc_slb_resize > arch/powerpc/kernel/rtas.c > --- linux-2.6/arch/powerpc/kernel/rtas.c~powerpc_slb_resize 2009-08-21 > 16:14:41.000000000 -0500 > +++ linux-2.6-bjking1/arch/powerpc/kernel/rtas.c 2009-08-21 > 16:14:41.000000000 -0500 > @@ -39,6 +39,7 @@ > #include <asm/smp.h> > #include <asm/atomic.h> > #include <asm/time.h> > +#include <asm/mmu-hash64.h> This should just be asm/mmu.h This is true of all occurences, ie, mmu-hash64.h isn't meant to be directly included (though it causes no breakage in the other cases) I'm going to commit a fixed version to powerpc-next today, you may want to update the version you are sending to distros. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
