Bill Allombert on Fri, 26 Jan 2018 23:08:07 +0100


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Re: mfinit --> Illegal instruction: 4 

On Fri, Jan 26, 2018 at 01:15:16PM -0600, Emmanuel ROYER, LMBP wrote:
> Hello everyone,
> 
> What does this Illegal Instruction: 4 mean?
> --------------------
> ? mfinit([128,32])
>   *** mfinit: Warning: increasing stack size to 16000000.
>   *** mfinit: Warning: increasing stack size to 32000000.
>   *** mfinit: Warning: increasing stack size to 64000000.
>   *** _ZM_inv_worker: Warning: increasing stack size to 128000000.
> Illegal instruction: 4

It means either the compiler generated invalid code or some memory
corruption occured.

What you can try is to disable parallelism with
default(nbthreads, 1)

Otherwise I can provide you with a tested binary.

Cheers,
Bill.