diff --git a/src/test/run-fail/morestack1.rs b/src/test/run-fail/morestack1.rs
index f4faac0b2aba6..d3e3be6c2caab 100644
--- a/src/test/run-fail/morestack1.rs
+++ b/src/test/run-fail/morestack1.rs
@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
 // error-pattern:fail
 fn getbig(i: int) {
     if i != 0 {
diff --git a/src/test/run-fail/morestack2.rs b/src/test/run-fail/morestack2.rs
index c3230965eceab..bf03695855e4a 100644
--- a/src/test/run-fail/morestack2.rs
+++ b/src/test/run-fail/morestack2.rs
@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
 // error-pattern:explicit failure
 
 // This time we're testing that the stack limits are restored
diff --git a/src/test/run-fail/morestack3.rs b/src/test/run-fail/morestack3.rs
index 4e059c5bd3c3f..4a8586fd19f35 100644
--- a/src/test/run-fail/morestack3.rs
+++ b/src/test/run-fail/morestack3.rs
@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
 // error-pattern:explicit failure
 
 // Just testing unwinding
diff --git a/src/test/run-fail/morestack4.rs b/src/test/run-fail/morestack4.rs
index db46438ea3c0f..b6fe25bc7a2ed 100644
--- a/src/test/run-fail/morestack4.rs
+++ b/src/test/run-fail/morestack4.rs
@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
 // error-pattern:explicit failure
 
 // Just testing unwinding
diff --git a/src/test/run-pass/morestack1.rs b/src/test/run-pass/morestack1.rs
index 775bbc883f6d8..e1a5c8c42c04c 100644
--- a/src/test/run-pass/morestack1.rs
+++ b/src/test/run-pass/morestack1.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
+
 fn getbig(i: int) {
     if i != 0 {
         getbig(i - 1);
diff --git a/src/test/run-pass/morestack2.rs b/src/test/run-pass/morestack2.rs
index e3e2a788230a7..cf42af0e8652a 100644
--- a/src/test/run-pass/morestack2.rs
+++ b/src/test/run-pass/morestack2.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
+
 fn getbig(i: int) -> int {
     let m = if i >= 0 {
         let j = getbig(i - 1);
diff --git a/src/test/run-pass/morestack3.rs b/src/test/run-pass/morestack3.rs
index a21b13743fe9d..b24afa151e259 100644
--- a/src/test/run-pass/morestack3.rs
+++ b/src/test/run-pass/morestack3.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
+
 // Here we're testing that all of the argument registers, argument
 // stack slots, and return value are preserved across split stacks.
 fn getbig(a0: int,
diff --git a/src/test/run-pass/morestack4.rs b/src/test/run-pass/morestack4.rs
index 82d4279ed2b96..bd4f5163b03e0 100644
--- a/src/test/run-pass/morestack4.rs
+++ b/src/test/run-pass/morestack4.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
+
 // This is testing for stack frames greater than 256 bytes,
 // for which function prologues are generated differently
 
diff --git a/src/test/run-pass/morestack5.rs b/src/test/run-pass/morestack5.rs
index 7f947e332c079..ec8ed7784099f 100644
--- a/src/test/run-pass/morestack5.rs
+++ b/src/test/run-pass/morestack5.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
+
 // This test will call __morestack with various minimum stack sizes
 
 extern mod extra;
diff --git a/src/test/run-pass/morestack6.rs b/src/test/run-pass/morestack6.rs
index cbbead6dbda3b..f004553f9c986 100644
--- a/src/test/run-pass/morestack6.rs
+++ b/src/test/run-pass/morestack6.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-test newsched transition
+
 // This test attempts to force the dynamic linker to resolve
 // external symbols as close to the red zone as possible.