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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: latest-from-bzr segfaults easily
Date: Wed, 25 May 2011 19:23:52 +0300
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> From: Jim Meyering <jim@meyering.net>
> Date: Wed, 25 May 2011 13:41:18 +0200
> 
> (gdb) p *ptr
> $2 = {
>   size = 6221254864074593878,
>   size_byte = 6221254864074593878,
>   intervals = 0x5656565656565656,
>   data = 0x5656565656565656 <Address 0x5656565656565656 out of bounds>
> }

FWIW, this struct seems to be overrun by ASCII text.