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Re: Crash recovery strategies


From: Eli Zaretskii
Subject: Re: Crash recovery strategies
Date: Mon, 04 Jan 2016 18:02:50 +0200

> Cc: address@hidden, address@hidden
> From: Daniel Colascione <address@hidden>
> Date: Mon, 4 Jan 2016 07:34:24 -0800
> 
> > You won't be able to do anything except call printf, without jumping
> > out of the handler.  The stack space left after stack overflow is too
> > small for anything fancier.  You will almost certainly crash, that's
> > all.
> 
> There's no guarantee that you can even call printf.

The guard page is usually one or 2 pages, which is enough for most
uses of printf.

> And you continue to ignore the existence of the alternate signal
> stack.

No, I don't.



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