To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.10-mm2: panic when munmap()ping the stack
References: <1105401719.4153.2.camel@localhost>
From: Andi Kleen <ak@muc.de>
Date: Tue, 11 Jan 2005 06:19:08 +0100
In-Reply-To: <1105401719.4153.2.camel@localhost> (Jeremy Fitzhardinge's
 message of "Mon, 10 Jan 2005 16:01:58 -0800")
Message-ID: <m1ekgsczlf.fsf@muc.de>
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Jeremy Fitzhardinge <jeremy@goop.org> writes:

> This program causes an instant panic for me:
>
>         #include <sys/mman.h>
>         
>         int main(int argc, char **argv)
>         {
>         	munmap((char *)(((unsigned long)&argc) & ~4095), 4096*2);
>         
>         	return 0;
>         }

I think Linus already fixed that. Can you try the latest -BK?
It's a fallout of the new clear_page_tables()

-Andi
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