I just invested in a new Mac with an M1 chip. I’m getting a segmentation fault for this code: module mylib implicit none abstract interface subroutine fcn_p end subroutine end interface contains subroutine tester() real(8) :: a a = 20.d0 call dumb(bla) c…

@shahmoradi I tried your posted code. With -DEXECSTACK_ENABLED, the code crashes, and without, then the code works OK. @mhulsen points out that nested functions are just not supported yet by gcc on M1. So this is a compiler bug, that gcc developers are aware of. I’ve found the relevant issue: Neste…

Why am I getting a segmentation fault here (M1 Mac)?

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nicholaswogan December 22, 2021, 4:02am 3

@urbanjost, compiling with gfortran mylib.f90 -O3 -fbacktrace -g still gives a segmentation fault.

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Why am I getting a segmentation fault here (M1 Mac)?

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