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no need to disable fpu in execregs, this is done in procsetup() already

--- a/sys/src/9/omap4/arch.c

+++ b/sys/src/9/omap4/arch.c

@@ -107,7 +107,6 @@

 	ulong *sp;

 	Ureg *ureg;

-	up->fpstate = FPinit;

 	sp = (ulong *) (USTKTOP - ssize);

 	*--sp = nargs;

--- a/sys/src/9/pc/trap.c

+++ b/sys/src/9/pc/trap.c

@@ -984,9 +984,6 @@

 	ulong *sp;

 	Ureg *ureg;

-	up->fpstate = FPinit;

-	fpoff();

-

 	sp = (ulong*)(USTKTOP - ssize);

 	*--sp = nargs;

--- a/sys/src/9/ppc/trap.c

+++ b/sys/src/9/ppc/trap.c

@@ -538,7 +538,7 @@

 	ureg->usp = (ulong)sp;

 	ureg->pc = entry;

 	ureg->srr1 &= ~MSR_FP;		/* disable floating point */

-	up->fpstate = FPinit;

+

 	return USTKTOP-sizeof(Tos);		/* address of kernel/user shared data */

 }

-- 

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