[PATCH] fix kexec asm
While testing kexec and kdump we hit problems where the new kernel would
freeze or instantly reboot. The easiest way to trigger it was to kexec a
kernel compiled for CONFIG_M586 on an athlon cpu. Compiling for CONFIG_MK7
instead would work fine.
The patch fixes a few problems with the kexec inline asm.
Signed-off-by: Chris Mason <mason@suse.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h
index bda2f21..6a2af2f 100644
--- a/include/asm-powerpc/kexec.h
+++ b/include/asm-powerpc/kexec.h
@@ -93,7 +93,8 @@
"mfxer %0\n"
"std %0, 296(%2)\n"
: "=&r" (tmp1), "=&r" (tmp2)
- : "b" (newregs));
+ : "b" (newregs)
+ : "memory");
}
}
#else