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Re: [2.6.25] compat VDSO option not disabling

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From: Jiri Kosina <jkosina@...>
To: Gerhard Mack <gmack@...>
Cc: <linux-kernel@...>
Subject: Re: [2.6.25] compat VDSO option not disabling
Date: Friday, April 25, 2008 - 10:33 am

On Thu, 24 Apr 2008, Gerhard Mack wrote:


The changelog of the commit below explains that.

commit 1dbf527c51c6c20c19869c8125cb5b87c3d09506
Author: Jeremy Fitzhardinge <jeremy@goop.org>
Date:   Wed May 2 19:27:12 2007 +0200

    [PATCH] i386: Make COMPAT_VDSO runtime selectable.

    Now that relocation of the VDSO for COMPAT_VDSO users is done at
    runtime rather than compile time, it is possible to enable/disable
    compat mode at runtime.

    This patch allows you to enable COMPAT_VDSO mode with "vdso=2" on the
    kernel command line, or via sysctl.  (Switching on a running system
    shouldn't be done lightly; any process which was relying on the compat
    VDSO will be upset if it goes away.)

    The COMPAT_VDSO config option still exists, but if enabled it just
    makes vdso_enabled default to VDSO_COMPAT.

-- 
Jiri Kosina
SUSE Labs

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Messages in current thread:
[2.6.25] compat VDSO option not disabling, Gerhard Mack, (Thu Apr 24, 12:49 pm)
Re: [2.6.25] compat VDSO option not disabling, Jiri Kosina, (Fri Apr 25, 10:33 am)
Re: [2.6.25] compat VDSO option not disabling, Gerhard Mack, (Sat Apr 26, 12:15 pm)
Re: [2.6.25] compat VDSO option not disabling, Jeremy Fitzhardinge, (Sun Apr 27, 1:10 am)
Re: [2.6.25] compat VDSO option not disabling, Gerhard Mack, (Mon Apr 28, 11:46 am)
Re: [2.6.25] compat VDSO option not disabling, Jeremy Fitzhardinge, (Mon Apr 28, 1:00 pm)
Re: [2.6.25] compat VDSO option not disabling, Gerhard Mack, (Mon Apr 28, 1:24 pm)
[PATCH] x86: don't bother printing compat vdso address, Jeremy Fitzhardinge, (Mon Apr 28, 2:05 pm)
Re: [PATCH] x86: don't bother printing compat vdso address, Ingo Molnar, (Tue Apr 29, 6:01 am)