[Bug fortran/93599] [9/10 regression] Bug in fortran asynchronous I/O wait function
tkoenig at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Sat Feb 8 17:31:00 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93599
--- Comment #4 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Created attachment 47800
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47800&action=edit
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?
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