Re: 2.6.25-mm1: not looking good

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From: Ingo Molnar
Date: Friday, April 18, 2008 - 12:19 am

* Andrew Morton <akpm@linux-foundation.org> wrote:


this warning is telling the user that the security feature that got 
enabled in the .config is completely, 100% not working due to using a
stack-protector-incapable GCC.

it's analogous as if there was a bug in gcc that made SELinux totally 
ineffective in some mitigate-exploit-damage scenarios. No harm done on a 
perfectly bug-free system - but once a bug happens that SELinux should 
have mitigated, the breakage becomes real. Having a prominent warning is 
the _minimum_.

having a build failure would be nice too because this is a build 
environment problem. (not a build warning - warnings can easily be 
missed because on a typical kernel build there's so many false positives 
that get emitted by various other warning mechanisms) Arjan?

	Ingo
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Messages in current thread:
2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 4:03 pm)
Re: 2.6.25-mm1: not looking good, Greg KH, (Thu Apr 17, 4:24 pm)
Re: 2.6.25-mm1: not looking good, Dan Williams, (Thu Apr 17, 4:24 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 4:40 pm)
Re: 2.6.25-mm1: not looking good, Paul Moore, (Thu Apr 17, 4:55 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 5:04 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 5:14 pm)
Re: 2.6.25-mm1: not looking good, Kay Sievers, (Thu Apr 17, 5:48 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 6:12 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 6:35 pm)
Re: 2.6.25-mm1: not looking good, Jason Wessel, (Thu Apr 17, 8:05 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 9:07 pm)
Re: 2.6.25-mm1: not looking good, Arjan van de Ven, (Thu Apr 17, 10:49 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 11:10 pm)
Re: 2.6.25-mm1: not looking good, Pekka Enberg, (Thu Apr 17, 11:40 pm)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Thu Apr 17, 11:56 pm)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 12:09 am)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 12:19 am)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 12:24 am)
Re: 2.6.25-mm1: not looking good, Pekka Enberg, (Fri Apr 18, 12:25 am)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Fri Apr 18, 12:28 am)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 12:37 am)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Fri Apr 18, 12:50 am)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Fri Apr 18, 12:53 am)
Re: 2.6.25-mm1: not looking good, Andrew Morton, (Fri Apr 18, 12:57 am)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 2:22 am)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 2:28 am)
Re: 2.6.25-mm1: not looking good, Pavel Machek, (Fri Apr 18, 2:42 am)
Re: 2.6.25-mm1: not looking good, James Morris, (Fri Apr 18, 3:32 am)
Re: 2.6.25-mm1: not looking good, Pavel Machek, (Fri Apr 18, 4:07 am)
Re: 2.6.25-mm1: not looking good, Vegard Nossum, (Fri Apr 18, 4:46 am)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 5:18 am)
Re: 2.6.25-mm1: not looking good, Ingo Molnar, (Fri Apr 18, 5:34 am)
Re: 2.6.25-mm1: not looking good, Vegard Nossum, (Fri Apr 18, 5:41 am)
Re: 2.6.25-mm1: not looking good, Jason Wessel, (Fri Apr 18, 6:02 am)
Re: 2.6.25-mm1: not looking good, Vegard Nossum, (Fri Apr 18, 6:22 am)
Re: 2.6.25-mm1: not looking good, Jason Wessel, (Fri Apr 18, 6:27 am)
Re: 2.6.25-mm1: not looking good, Vegard Nossum, (Fri Apr 18, 7:47 am)
Re: 2.6.25-mm1: not looking good, Paul Moore, (Fri Apr 18, 7:55 am)
Re: 2.6.25-mm1: not looking good, Paul Moore, (Fri Apr 18, 7:57 am)
Re: 2.6.25-mm1: not looking good, Alan Stern, (Fri Apr 18, 8:22 am)
Re: 2.6.25-mm1: not looking good, Vegard Nossum, (Fri Apr 18, 9:02 am)
Re: 2.6.25-mm1: not looking good, Jason Wessel, (Fri Apr 18, 2:54 pm)
2.6.25-mm1: Failing to probe IDE interface, Mel Gorman, (Mon Apr 28, 9:42 am)
Re: 2.6.25-mm1: Failing to probe IDE interface, Andrew Morton, (Mon Apr 28, 9:59 am)
Re: 2.6.25-mm1: Failing to probe IDE interface, Bartlomiej Zolnierki ..., (Mon Apr 28, 11:44 am)
Re: 2.6.25-mm1: Failing to probe IDE interface, Mel Gorman, (Tue Apr 29, 2:39 am)
Re: 2.6.25-mm1: Failing to probe IDE interface, Mel Gorman, (Tue Apr 29, 2:43 am)
Re: 2.6.25-mm1: Failing to probe IDE interface, Mel Gorman, (Tue Apr 29, 8:49 am)
Re: 2.6.25-mm1: Failing to probe IDE interface, Mel Gorman, (Tue Apr 29, 9:58 am)
Re: 2.6.25-mm1: Failing to probe IDE interface, Bartlomiej Zolnierki ..., (Tue Apr 29, 2:37 pm)
Re: 2.6.25-mm1: Failing to probe IDE interface, Mel Gorman, (Wed Apr 30, 4:16 am)