[Top] [All Lists]

Re: How to detect STACKOVEFLOW on mips

To: Matt Fleming <>
Subject: Re: How to detect STACKOVEFLOW on mips
From: Ralf Baechle <>
Date: Mon, 5 Jul 2010 14:35:33 +0100
Cc:, Adam Jiang <>
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <> <> <>
User-agent: Mutt/1.5.20 (2009-08-17)
On Mon, Jul 05, 2010 at 02:09:31PM +0100, Matt Fleming wrote:

> > Which often isn't so helpful.  The alarm gets triggered on the last stack
> > pointer decrement but according to murphy the overflow has happened 10
> > levels up in the callchain.
> Last decrement? The alarm should be triggered the next time the
> function in which the overflow occurs makes a function call. I don't
> see how you could go down a level of the callchain and not trigger the
> alarm if the overflow has happened?

        char array[6000];


blurb(void *p)

With the deep nesting of the current kernel there is a good chance a
check in mcount will not be triggered in blurb() but possibly in frob
or even further down the callchain.


<Prev in Thread] Current Thread [Next in Thread>