diff --git a/sys/contrib/openzfs/include/os/freebsd/spl/sys/sdt.h b/sys/contrib/openzfs/include/os/freebsd/spl/sys/sdt.h
index 2daa6de1af08..b1ec0ca761a9 100644
--- a/sys/contrib/openzfs/include/os/freebsd/spl/sys/sdt.h
+++ b/sys/contrib/openzfs/include/os/freebsd/spl/sys/sdt.h
@@ -34,12 +34,12 @@
 /* CSTYLED */
 SDT_PROBE_DECLARE(sdt, , , set__error);
 
-#define	SET_ERROR(err) \
-	((sdt_sdt___set__error->id ? \
-	(*sdt_probe_func)(sdt_sdt___set__error->id, \
-	    (uintptr_t)err, 0, 0, 0, 0) : 0), err)
-#else
-#define	SET_ERROR(err) (err)
 #endif
 
+#define SET_ERROR(err) ({			\
+	int _err = (err);			\
+	printf("SET_ERROR %s %s:%d %d\n", __func__, __FILE__, __LINE__, _err);	\
+	_err;	\
+})
+
 #endif	/* _OPENSOLARIS_SYS_SDT_H_ */
diff --git a/sys/contrib/openzfs/lib/libspl/include/sys/simd.h b/sys/contrib/openzfs/lib/libspl/include/sys/simd.h
index a106967d0725..1f24d9f5e059 100644
--- a/sys/contrib/openzfs/lib/libspl/include/sys/simd.h
+++ b/sys/contrib/openzfs/lib/libspl/include/sys/simd.h
@@ -551,14 +551,14 @@ zfs_sha512_available(void)
 
 #elif defined(__powerpc__)
 
-#define	kfpu_allowed()		1
+#define	kfpu_allowed()		0
 #define	kfpu_initialize(tsk)	do {} while (0)
 #define	kfpu_begin()		do {} while (0)
 #define	kfpu_end()		do {} while (0)
 
-#define	PPC_FEATURE_HAS_ALTIVEC	0x10000000
-#define	PPC_FEATURE_HAS_VSX	0x00000080
-#define	PPC_FEATURE2_ARCH_2_07	0x80000000
+#define	PPC_FEATURE_HAS_ALTIVEC	0x00000000
+#define	PPC_FEATURE_HAS_VSX	0x00000000
+#define	PPC_FEATURE2_ARCH_2_07	0x00000000
 
 static inline boolean_t
 zfs_altivec_available(void)