From: matz@... (Yukihiro Matsumoto)
Date: 2004-05-22T11:14:54+09:00
Subject: Re: [PATCH] fixed SIG_SEGV in check_stack() in eval.c

Hi,

In message "[PATCH] fixed SIG_SEGV in check_stack() in eval.c"
    on 04/05/22, b g <bg_rubyposter_123456@yahoo.com> writes:

|I was getting a crash at 'JUMP_TAG(state);' in
|check_stack() in eval.c because prot_tag was NULL. 
|The JUMP_TAG macro goes right after prot_tag without
|checking it to be a valid pointer.  *CRASH*
|
|Attached is my very simple fix.  There's probly a
|better way (I don't know why prot_tag is NULL in this
|case, should it be?), but the patch below works for
|me.

It's probably caused by prot_tag left uninitialized by the
application.  Can you show us the portion of your application code
that inistalize/call Ruby interpreter?

							matz.