lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri, 13 Apr 2007 13:36:33 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Zachary Amsden <zach@...are.com>,
	Chris Wright <chrisw@...s-sol.org>, Andi Kleen <ak@...e.de>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Linus Torvalds <torvalds@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Crash while mapping memory in pagetable_init() (Was: Re: .config)

H. Peter Anvin wrote:
> I suggest, for clarity and to minimize bloat:

I think it would save a page, at most.  But OK.  (Also, if you're
running !PAE, these pages will actually become part of the init_mm
pagetable, so there's no memory wastage at all.)

> #ifdef CONFIG_X86_PAE
> # define PAGE_TABLE_SIZE    ((2048+4)*4096)
> #else
> # define PAGE_TABLE_SIZE    ((1024+1)*4096)

1024 should be enough; the pgd is still swapper_pg_dir, and there are no
pmds.

    J
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists