[Bug target/81590] AVX512 run-time test failures

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81590

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to H.J. Lu from comment #0)
> On Skylake server running Fedora 25/x86-64, r250630 gave:
> 

This is on a 80-core machine with "make check -j80".

> FAIL: libgomp.c/for-3.c execution test
> FAIL: libgomp.c/for-5.c execution test

The above 2 failed with

WARNING: program timed out.

They passed when running them by hand.

> FAIL: libgomp.fortran/target7.f90   -O0  execution test
> FAIL: libgomp.fortran/target7.f90   -O1  execution test
> FAIL: libgomp.fortran/target7.f90   -O2  execution test
> FAIL: libgomp.fortran/target7.f90   -O3 -fomit-frame-pointer -funroll-loops
> -fpeel-loops -ftracer -finline-functions  execution test
> FAIL: libgomp.fortran/target7.f90   -O3 -g  execution test
> FAIL: libgomp.fortran/target7.f90   -Os  execution test
> FAIL: libgomp.fortran/target8.f90   -O0  execution test
> FAIL: libgomp.fortran/target8.f90   -O1  execution test
> FAIL: libgomp.fortran/target8.f90   -O2  execution test
> FAIL: libgomp.fortran/target8.f90   -O3 -fomit-frame-pointer -funroll-loops
> -fpeel-loops -ftracer -finline-functions  execution test
> FAIL: libgomp.fortran/target8.f90   -O3 -g  execution test
> FAIL: libgomp.fortran/target8.f90   -Os  execution test
> 

Both were compiled with -m32 and failed with

libgomp: Thread creation failed: Resource temporarily unavailableThread
creation failed: Resource temporarily unavailableThread creation failed:
Resource temporarily unavailable
Thread creation failed: Resource temporarily unavailable

when running by hand.