https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61840
--- Comment #1 from Stefan <kdevel at vogtner dot de> --- After configuring with --with-arch-32=i686 I get PASS: runtime/pprof Aborted testing.tRunner [redacted]/gcc-4.9.1/bld/gcc-4.9.1/libgo/go/testing/testing.go:392 goroutine 1 [chan receive]: testing.RunTests [redacted]/gcc-4.9.1/bld/gcc-4.9.1/libgo/go/testing/testing.go:472 testing.Main [redacted]/gcc-4.9.1/bld/gcc-4.9.1/libgo/go/testing/testing.go:403 main.main [redacted]/gcc-4.9.1/bld/gcc-objdir/x86_64-unknown-linux-gnu/32/libgo/gotest19278/test/_testmain.go:67 FAIL: sync/atomic