linux-kernel - Re: [3.1 patch] x86: default to vsyscall=native

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Message-ID: <20111003184104.GA2996@localhost.pp.htv.fi>
Date:	Mon, 3 Oct 2011 21:41:04 +0300
From:	Adrian Bunk <bunk@...sta.de>
To:	Andrew Lutomirski <luto@....edu>
Cc:	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [3.1 patch] x86: default to vsyscall=native

On Mon, Oct 03, 2011 at 11:06:13AM -0700, Andrew Lutomirski wrote:
> On Mon, Oct 3, 2011 at 10:33 AM, Adrian Bunk <bunk@...sta.de> wrote:
> > On Mon, Oct 03, 2011 at 06:04:53AM -0700, Andrew Lutomirski wrote:
>...
> >> of a bug in that the new code doesn't report si_addr properly, but
> >> that sounds unlikely as a culprit.  Did you try with the offending
> >> commit reverted (i.e. fce8dc0)?  I bet that it also fails there.
> >
> > fce8dc0 is "x86-64: Wire up getcpu syscall", is that really the one you
> > want me to revert?
> 
> No -- I actually meant to try running that revision or to try with the
> vsyscall= patch reverted.

I now tried both, and your bet was right.

>...
> --Andy

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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