Date: Sun, 7 Jan 2001 08:25:52 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: "Mark E." <snowball3 AT bigfoot DOT com>
cc: djgpp-workers AT delorie DOT com
Subject: Re: valloc and memalign draft
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On Fri, 5 Jan 2001, Mark E. wrote:

> +   /* Temporarily clear chunk-in-use bit so macros work correctly.  */
> +   b1->size &= ~1;

Isn't this a bit dangerous?  Doesn't it leave the malloc chain in an 
inconsistent state, for a small window of opportunities?  What if some 
signal (i.e. exception) strikes between this line and where you restore 
the bit, and the code run from the signal handler calls memalign?