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From: Andi Kleen <ak@suse.de>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Virtualization Mailing List <virtualization@lists.osdl.org>
Subject: Re: Why disable vdso by default with CONFIG_PARAVIRT?
Date: Tue, 12 Dec 2006 22:15:19 +0100	[thread overview]
Message-ID: <200612122215.19238.ak@suse.de> (raw)
In-Reply-To: <457F0D02.3040000@goop.org>

On Tuesday 12 December 2006 21:11, Jeremy Fitzhardinge wrote:
> Andi Kleen wrote:
> > I don't think being incompatible to old binaries is a sensible default. That
> > is why I changed the wrong default. If paravirt ops cannot supply
> > a compatible vdso it has to do without one.
> 
> Do you know what glibc2.1 actually needs from the vdso?  Does it
> actually interpret as an elf file,

Interpret it as a ELF file, but then has some special hacks to jump
directly anyways (or at least there is no direct linking, but 
it goes over a trampoline in the main glibc)

The failure is an assertation failure in ld.so.

-Andi

  reply	other threads:[~2006-12-12 21:15 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-12  1:22 Why disable vdso by default with CONFIG_PARAVIRT? Jeremy Fitzhardinge
2006-12-12  1:42 ` Zachary Amsden
2006-12-12  1:44   ` Jeremy Fitzhardinge
2006-12-12  1:46     ` Zachary Amsden
2006-12-12  1:49       ` Jeremy Fitzhardinge
2006-12-12  3:02 ` Andi Kleen
2006-12-12  6:28   ` Zachary Amsden
2006-12-12  6:50   ` Jeremy Fitzhardinge
2006-12-12  7:27     ` Andi Kleen
2006-12-12 10:23       ` Jeremy Fitzhardinge
2006-12-12 12:01         ` Andi Kleen
2006-12-12 20:11           ` Jeremy Fitzhardinge
2006-12-12 21:15             ` Andi Kleen [this message]
2006-12-13  2:04               ` Rusty Russell
2006-12-13  4:36               ` Rusty Russell
2006-12-13  5:25                 ` Rusty Russell
2006-12-12 23:22   ` Rusty Russell

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