[Bug fortran/93599] [9/10 regression] Bug in fortran asynchronous I/O wait function

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93599

--- Comment #5 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
(In reply to Thomas Koenig from comment #4)
> Created attachment 47800 [details]
> Possible fix
> 
> Here is something that Nicolas and I came up with.  The theory is that
> pthread_cond_wait can get a spurious interrupt once in a blue moon which
> previosly led to the macro becoming a no-op.
> 
> I have tested this to around 8 Million invocations of the test program, but
> this is not a guarantee...
> 
> Incidentially, this also appears to fix the issue that helgrind reported.
> It passes regression testing.
> 
> Is there a reasonable way to test this further?

Awesome sleuthing. I think we could run your test case on a PowerPC64 either in
the gcc compile farm for at OSU (Oregon State University) I will check to see
if I can still get into the OSU machine.