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Running on OpenSuse 12.3/x86_64 with git master from today at d71ca46641a6cb7feffb471f86673451f434dda2.
I have disabled all AOT at configure time to work around other problems. Exact build steps are,
./configure --prefix=/tmp/mono-master --enable-minimal=aot --disable-system-aot
make -j 4
The resulting mono is,
# mono --version
Mono JIT compiler version 3.3.0 (master/d71ca46 Wed Aug 21 08:41:07 MDT 2013)
Copyright (C) 2002-2012 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
LLVM: supported, not enabled.
The test mono/tests/gc-altstack.exe fails ~1% of the time with no meaningful output. To reproduce the problem,
# i=0; while mono ./gc-altstack.exe; do i=`expr $i + 1`; echo $i -----; done
This is not reducible with --gc=boehm in a few thousand iterations.
Side note... Don't know if it's interesting or not but this test runs significantly faster using the boehm gc instead of sgen.
As a double-check that AOT is really disabled, this test still fails with "-O=-aot".
# i=0; while mono -O=-aot ./gc-altstack.exe; do i=`expr $i + 1`; echo $i -----; done
Fixed in 8828fafe297e758858468c2e96054ae101ea7227.