Francois,
Maybe you need to override the default.
In the context of libcl (which is where I came in, testing a release candidate with LW 5.1.2), overriding the default stack size default needs resaving the image and isn't an option.
I suggest you take that with the tech support of your vendor.
I don't know if there's much mileage in that. They'll surely tell me to either run asdf compiled or to use the latest release (LW6) or both.
If you feel that ASDF needs to be changed in any specific way, please do not hesitate to come back to this list, or to post a bug on launchpad.net.
If you think it's an ASDF issue, it would be nice if you could git-bisect a specific commit that causes the issue.
I lean more towards proposing to libcl that asdf is run compiled rather than interpreted.
- nick