On Wed, 2016-06-07 at 04:58:06 UTC, Michael Neuling wrote:
> At the start of __tm_recheckpoint we save the kernel stack pointer
> (r1) in SPRG SCRATCH0 (SPRG2) so that we can restore it after the
> trecheckpoint.
...
>
> This patches moves the saving of r1 to the SPRG to the region where we
> are
At the start of __tm_recheckpoint we save the kernel stack pointer
(r1) in SPRG SCRATCH0 (SPRG2) so that we can restore it after the
trecheckpoint.
Unfortunately, the same SPRG is used in the SLB miss handler. If an
SLB miss is taken between the save and restore of r1 to the SPRG, the
SPRG is cha
