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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Stumped: Seg Fault with System.Secondary_Stack.SS_Mark()
Date: Fri, 07 Sep 2012 16:35:42 +0100
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Date: 2012-09-07T16:35:42+01:00
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awdorrin <awdorrin@gmail.com> writes:

> I verified that each pthread is being provided with 8MB of space for
> their stack. (This program starts off from C and spawns threads, which
> are mixed Ada and C.)

Have you registered these threads with the Ada RTS? See
g-thread.ads. You need to do this before doing anything (such as
accessing the secondary stack) which requires Ada-specific setup in the
TCB or equivalent.