From: "Marcin Rożek" <marcin.rozek@ios.edu.pl>
To: linux-kernel@vger.kernel.org
Subject: Re: kernel BUG at page_alloc.c
Date: Fri, 17 Sep 2004 13:02:51 +0200 [thread overview]
Message-ID: <414AC45B.60404@ios.edu.pl> (raw)
In-Reply-To: <20040915124449.GB2963@logos.cnet>
Marcelo Tosatti wrote:
> Yes it is quite serious... the VM is trying to free a page with ->mapping
> set (probably a pagecache page) which is not valid thing to happen (thus the BUG).
>
> You can move to v2.4.27 to confirm you see or do not see the problem there.
It's a grsecurity bug: http://forums.grsecurity.net/viewtopic.php?t=933
On clean 2.4.27 everything works fine.
It happens only when MPROTECT is turned off in the kernel.
Regards,
Marcin
next prev parent reply other threads:[~2004-09-17 11:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-15 12:25 kernel BUG at page_alloc.c Marcin Rożek
2004-09-15 11:21 ` Marcelo Tosatti
2004-09-15 13:33 ` Marcin Rożek
2004-09-15 12:44 ` Marcelo Tosatti
2004-09-17 11:02 ` Marcin Rożek [this message]
[not found] <20020812002223.GE24456@louise.pinerecords.com>
2002-08-12 0:27 ` Studying MTD
2002-08-12 0:41 ` Studying MTD
2002-08-12 0:46 ` Tomas Szepe
[not found] <20020812000523.15F1D88BC@oscar.casa.dyndns.org>
2002-08-12 0:19 ` Studying MTD
-- strict thread matches above, loose matches on Subject: below --
2002-08-11 23:35 Studying MTD
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