--- wikisrc/users/haad/Attic/porting_zfs.mdwn	2009/10/26 23:21:58	1.7
+++ wikisrc/users/haad/Attic/porting_zfs.mdwn	2009/11/12 00:08:15	1.8
@@ -55,15 +55,9 @@ After creating ZVOLS and filesystem they
 ## Show stoppers 
 
 ### amd64
-* amd64 zio_root crash
-Investigation 
-vdev_label_read_config -> zio_root calls zio_wait on a zio_root zio_t. Later zio_execute tries to generate 			
-checksum on zio->zio_data which is NULL for a zio_root. Is this ressurrection of andys zio_null problem ? 
-because zio_root is basicaly zio_null.
-		
- Solution
- What is difference between i386 and amd64 version why it is working on i386 and not on a amd64 that can be
- solution.
+
+amd64 related panic was fixed in version 1.1 of sys/arch/amd64/include/Makefile.inc by adding -mno-red-zone flag to amd64 modules build flags.
+
 ### i386 
 
 ### Both