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[Bug libgomp/87835] nvptx offloading: libgomp.oacc-c-c++-common/asyncwait-1.c execution test intermittently fails at -O2
- From: "vries at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 14 Dec 2018 14:19:37 +0000
- Subject: [Bug libgomp/87835] nvptx offloading: libgomp.oacc-c-c++-common/asyncwait-1.c execution test intermittently fails at -O2
- Auto-submitted: auto-generated
- References: <bug-87835-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87835
--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Thomas Schwinge from comment #0)
> After r264397 "[nvptx] Remove use of CUDA unified memory in libgomp", I'm
> seeing (intermittently only, and only on some systems):
>
I see the failure reproduced consistently with a Quadro M1200.
> I have not yet analyzed what's causing this, but I have some ideas about
> pending patches that might cure it.
OK, let's see if those make it. If not, we may want to investigate and decide
if we want to revert the patch.