linux-kernel - Re: [-mm patch] enforce noreplace-smp in alternative

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]

Message-ID: <46CE7EDC.9080007@goop.org>
Date:	Thu, 23 Aug 2007 23:46:52 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Frederik Deweerdt <deweerdt@...e.fr>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Andi Kleen <ak@...e.de>
Subject: Re: [-mm patch] enforce noreplace-smp in alternative_instructions()

Frederik Deweerdt wrote:
> That means that even when you specify noreplace_smp, some replacing
> takes place anyway. One of the consequences, besides noreplace_smp not
> working as expected, is that lguest crashes when you feed it an SMP kernel
> (I suspect that you can not replace alternatives for smp _and_ paravirt).
>   

No, that should be fine.  Why does lguest crash?

> I agree, but I don't think it is doable (alt_smp_once comes to mind). I'll
> double check however.

Hm.  Is alt_smp_once useful?

    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/