lkml.org 
[lkml]   [2007]   [Mar]   [6]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateTue, 6 Mar 2007 08:50:57 +0100
FromIngo Molnar <>
SubjectRe: [patch] paravirt: VDSO page is essential
* Zachary Amsden <zach@vmware.com> wrote:

> > yeah. (plus my patches of course that remove the current 
> > papering-over hackery and restores COMPAT_VDSO.)
> 
> Yes, I don't have a problem with your patch, I just wish I had been 
> cc'd on it. [...]

(i Cc:-ed you to the other ones - i simply forgot and bounced it to you 
a few hours down the line - sorry!)

> [...] Fixing this is rather tricky, but I believe no strange build 
> magic is required, it can be done in kernel init code.  Still building 
> my SUSE 9.0 guest to test.  SUSE 9.0 is one of those that requires 
> COMPAT_VDSO, yes?

yeah, and a handful of other ones. It depends on the glibc version: 
early vdso glibs were buggy and assumed a few things about the vdso, so 
they would segfault on the new-style vdso which is fully relocatable 
(and hence mergable into the vma space, randomizable, etc.).

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-03-06 08:53    [from the cache]
©2003-2008