Hi folks,

in preparation for the 4.0 release I would like to fix as many of the
regression failures for sparc64 as possible. Unfortunately the process
stopped early and unexpected:

  regress/lib/libc/context

hangs in userland - this tests the getcontext/setcontext and makecontext
library functions. The former two are used heavily in other (working) 
regression tests, so I suspect it's the latter in this case.

I had a very quick look, but didn't see anything obvious. This used to work
before, so I suspect some interaction with the new compiler.

I'm busy with something else currently, could somebody please have a look
at this?

Thanks,

Martin