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Re: [HACKERS] patch for memory overrun on Linux(i386)

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: scrappy(at)hub(dot)org (The Hermit Hacker)
Cc: mgittens(at)david(dot)gits(dot)nl, hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] patch for memory overrun on Linux(i386)
Date: 1998-03-22 03:58:03
Message-ID: 199803220358.WAA02311@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
> 
> 
> Some things just require confirmation...can someone else (Thomas?) running
> Linux comment on this before I apply it?  I just find it kinda unexpected
> to see something that doesn't work for SCO doesn't work for Linux too :)

On BSDI, malloc man pages says:

     The allocated space is suitably aligned (after possible pointer coercion)
     for storage of any type of object.

I don't believe this is a standard, and I think Linux may not follow it.
I think I heard somewhere they don't.  We certainly need to have this
checked before use in a patch.


-- 
Bruce Momjian                          |  830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)us              |  Drexel Hill, Pennsylvania 19026
  +  If your life is a hard drive,     |  (610) 353-9879(w)
  +  Christ can be your backup.        |  (610) 853-3000(h)

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