On Wed, 2015-11-18 at 14:26 +1100, Cyril Bur wrote: > With threads leaving the math bits enabled in their saved MSR to > indicate > that the hardware is hot and a restore is not needed, children need > to turn > it off as when they do get scheduled, there's no way their registers > could > have been hot. > > Signed-off-by: Cyril Bur <cyril...@gmail.com> > --- > arch/powerpc/kernel/process.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/powerpc/kernel/process.c > b/arch/powerpc/kernel/process.c > index 398f7bf..441d9e5 100644 > --- a/arch/powerpc/kernel/process.c > +++ b/arch/powerpc/kernel/process.c > @@ -1243,6 +1243,7 @@ int copy_thread(unsigned long clone_flags, > unsigned long usp, > > f = ret_from_fork; > } > + childregs->msr &= ~(MSR_FP|MSR_VEC|MSR_VSX);
Is this a current bug? Mikey > sp -= STACK_FRAME_OVERHEAD; > > /* _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
