linux-kernel - Re: vsyscall=emulate regression

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Date:	Tue, 14 Feb 2012 17:52:05 +0530
From:	Amit Shah <amit.shah@...hat.com>
To:	luto@...capital.net
Cc:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: vsyscall=emulate regression

On (Fri) 03 Feb 2012 [13:57:48], Amit Shah wrote:
> Hello,
> 
> I'm booting some latest kernels on a Fedora 11 (released June 2009)
> guest.  After the recent change of default to vsyscall=emulate, the
> guest fails to boot (init segfaults).
> 
> I also tried vsyscall=none, as suggested by hpa, and that fails as
> well.  Only vsyscall=native works fine.
> 
> The commit that introduced the kernel parameter,
> 
> 3ae36655b97a03fa1decf72f04078ef945647c1a
> 
> is bad too.

I suggest we revert 2e57ae0515124af45dd889bfbd4840fd40fcc07d till we
track down and fix the vsyscal=emulate case.

		Amit
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