Index: head/sys/powerpc/include/pcb.h
===================================================================
--- head/sys/powerpc/include/pcb.h
+++ head/sys/powerpc/include/pcb.h
@@ -37,6 +37,8 @@
 #ifndef _MACHINE_PCB_H_
 #define	_MACHINE_PCB_H_
 
+#include <sys/endian.h>
+
 #include <machine/setjmp.h>
 
 #ifndef _STANDALONE
@@ -62,8 +64,16 @@
 #define	PCB_CFSCR	0x40	/* Process had FSCR updated */
 	struct fpu {
 		union {
+#if _BYTE_ORDER == _BIG_ENDIAN
 			double fpr;
 			uint32_t vsr[4];
+#else
+			uint32_t vsr[4];
+			struct {
+				double padding;
+				double fpr;
+			};
+#endif
 		} fpr[32];
 		double	fpscr;	/* FPSCR stored as double for easier access */
 	} pcb_fpu;		/* Floating point processor */
Index: head/sys/powerpc/powerpc/fpu.c
===================================================================
--- head/sys/powerpc/powerpc/fpu.c
+++ head/sys/powerpc/powerpc/fpu.c
@@ -79,7 +79,7 @@
 	#undef SFP
 	} else {
 	#define SFP(n)   __asm ("stfd " #n ", 0(%0)" \
-			:: "b"(&pcb->pcb_fpu.fpr[n]));
+			:: "b"(&pcb->pcb_fpu.fpr[n].fpr));
 		SFP(0);		SFP(1);		SFP(2);		SFP(3);
 		SFP(4);		SFP(5);		SFP(6);		SFP(7);
 		SFP(8);		SFP(9);		SFP(10);	SFP(11);
@@ -164,7 +164,7 @@
 	#undef LFP
 	} else {
 	#define LFP(n)   __asm ("lfd " #n ", 0(%0)" \
-			:: "b"(&pcb->pcb_fpu.fpr[n]));
+			:: "b"(&pcb->pcb_fpu.fpr[n].fpr));
 		LFP(0);		LFP(1);		LFP(2);		LFP(3);
 		LFP(4);		LFP(5);		LFP(6);		LFP(7);
 		LFP(8);		LFP(9);		LFP(10);	LFP(11);