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Bug#538332: marked as done (linux-2.6: [x86] Null pointer dereference in hrtick_start_fair.)

Your message dated Sun, 08 Aug 2010 04:12:44 +0100
with message-id <1281237164.7543.131.camel@localhost>
and subject line Re: linux-2.6: [x86] Null pointer dereference in hrtick_start_fair.
has caused the Debian Bug report #538332,
regarding linux-2.6: [x86] Null pointer dereference in hrtick_start_fair.
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
538332: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=538332
Debian Bug Tracking System
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--- Begin Message --- 
Package: linux-2.6
Version: Debian 5.0r2

Hi,

There was a regression on mainline kernel due to my patches for tsc
unification. 
It seems lenny has picked-up those unification patches but didn't pick
the fix for that regression. 

I checked sources for Debian5 5.0r2 and its missing the fix.

The commit details for the fix are

commit 3d0decc4f49e8645cd6369b02ed076bebd3d61ad
Author: Ingo Molnar <mingo@elte.hu>
Date:   Fri Jul 11 15:09:15 2008 +0200

    x86: fix tsc unification buglet with ftrace and stackprotector


Please include it in the next security update. 
We have seen null pointer de-reference in hrtick_start_fair during
bootup, similar to one mentioned in the commit details.

Thanks.

--- End Message ---
--- Begin Message --- 
My understanding of this bug report is that the bug does not affect
upstream kernel versions 2.6.26 or 2.6.32 and therefore we do not need
to make any change.

Ben.

-- 
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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