Hello!
There is no need for a panic in test/nilptr.go if array doesn't get
allocated in first 256 meg of memory. The compiler has nothing to do
with this.
Index: test/nilptr.go
===================================================================
--- test/nilptr.go (revision 183732)
+++ test/nilptr.go (working copy)
@@ -22,7 +22,8 @@
// at the address that might be accidentally
// dereferenced below.
if uintptr(unsafe.Pointer(&dummy)) > 256<<20 {
- panic("dummy too far out")
+ println("dummy too far out")
+ return
}
shouldPanic(p1)
Tested on alphaev68-pc-linux-gnu where it "fixes" the failure.
After proposed patch(es), the only remaining failure on
alpha-linux-gnu is in test/chan/select2.go:
FAIL: go.test/test/chan/select2.go execution, -O2 -g
with
Executing on host: /space/uros/gcc-build/gcc/testsuite/go2/../../gccgo
-B/space/uros/gcc-build/gcc/testsuite/go2/../../
/home/uros/gcc-svn/trunk/gcc/testsuite/go.test/test/chan/select2.go
-I/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo -w -O2
-g -L/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo
-L/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo/.libs -lm
-o /space/uros/gcc-build/gcc/testsuite/go2/select2.x (timeout =
300)
spawn /space/uros/gcc-build/gcc/testsuite/go2/../../gccgo
-B/space/uros/gcc-build/gcc/testsuite/go2/../../
/home/uros/gcc-svn/trunk/gcc/testsuite/go.test/test/chan/select2.go
-I/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo -w -O2 -g
-L/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo
-L/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo/.libs -lm
-o /space/uros/gcc-build/gcc/testsuite/go2/select2.x^M
PASS: go.test/test/chan/select2.go compilation, -O2 -g
Setting LD_LIBRARY_PATH to
.:/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo/.libs:/home/uros/gcc-build/gcc:.:/space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libgo/.libs:/home/uros/gcc-build/gcc
spawn [open ...]^M
BUG: too much memory for 100,000 selects: 2098576
FAIL: go.test/test/chan/select2.go execution, -O2 -g
The test works without problems otherwise. I suspect that memory
consumption threshold is set way too low...
Uros.
