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Hello, we still have problems with AO_stack* feature on ppc/ppc64.  The
testsuite for AO_stack* calls fails on 'test_stack' application.  As these
atomic operations are low-level and hard to make portable, this behaviour is
quite expected in early phases.

Upstream has been working on this problem recently:

  http://article.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/5238/match=test_stack

But the solution does not help us 100%.

I have tried to find some workaround/fix, but unsuccessful yet.  I have also
contacted upstream for help and I'll work on this in future.  But now I tend to
at least document *now* that this feature does not work properly in RHEL.

I have tried test on several PowerPCs, and I know only that it does not work on
all ppcs (on some of them testsuite passes).

Pavel

I've found nasty workaround, proposed upstream .. but it needs more
investigation.

http://news.gmane.org/find-root.php?group=gmane.comp.programming.garbage-collection.boehmgc&article=5486

Pavel

This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unable to address this
request at this time.

Red Hat invites you to ask your support representative to
propose this request, if appropriate, in the next release of
Red Hat Enterprise Linux.

It is too late for RHEL6 so I'm closing this bug. Seems like the latest
fedora package builds libatomic_ops correctly on all architectures, and
the test passes -- no need to track this more downstream.