Not really, but the zero page of every process is not mapped.
That's why you get a SEGV when dereferencing a NULL-pointer.

0x13 clearly points into the zero page.


-----Urspr�ngliche Nachricht-----
Von: Guillaume Cottenceau [mailto:[EMAIL PROTECTED]
Gesendet: Mittwoch, 15. Dezember 2004 16:10
An: [EMAIL PROTECTED]; Pommnitz, J�rg
Cc: [EMAIL PROTECTED]
Betreff: Re: AW: Segmentation fault


"Pommnitz, J�rg" <jpo 'at' condat.de> writes:

> 0x13 clearly points into the unmapped page and cannot be a valid pointer.

do you have any reference about the pages organization of the
linux kernel?

-- 
Guillaume Cottenceau

Reply via email to