I've been reviewing this bug the last hours. I can confirm that this
bug is _not fixed_, tla is not usable in ia64, and I suspect is the
same in the other arches.
In ia64, there is present a misalignment warning, and a segmentation
fault. I could correct the latter, and I'm investigating the former. I
suspect the bus error in sparc is attributable to the same problem
with the alignment.
I'm still working on this, and I plan to reopen the bug as separate bug reports.