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Re: [local DoS] Re: Linux 2.6.24-rc4

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From: Linus Torvalds <torvalds@...>
To: Luiz Fernando N. Capitulino <lcapitulino@...>
Cc: Linux Kernel Mailing List <linux-kernel@...>, Ingo Molnar <mingo@...>, <herton@...>, <dvgevers@...>
Subject: Re: [local DoS] Re: Linux 2.6.24-rc4
Date: Tuesday, December 4, 2007 - 11:56 am

On Tue, 4 Dec 2007, Luiz Fernando N. Capitulino wrote:

Looks like we have a zero "cfs_rq->load.weight".

Ingo? Both sched_slice() and __sched_slice() do a divide by the runqueue 
weight, and at least dequeue_task_fair() explicitly checks for that being 
zero, so clearly zero is a possible value. Hmm?

		Linus
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Messages in current thread:
Linux 2.6.24-rc4, Linus Torvalds, (Tue Dec 4, 1:08 am)
Re: Linux 2.6.24-rc4, Diego Calleja, (Tue Dec 4, 8:23 pm)
[local DoS] Re: Linux 2.6.24-rc4, Luiz Fernando N. Capitulino..., (Tue Dec 4, 10:07 am)
Re: [local DoS] Re: Linux 2.6.24-rc4, Linus Torvalds, (Tue Dec 4, 11:56 am)
Re: [local DoS] Re: Linux 2.6.24-rc4, Ingo Molnar, (Tue Dec 4, 12:00 pm)
[git pull] scheduler fixes, Ingo Molnar, (Tue Dec 4, 12:18 pm)
Re: [git pull] scheduler fixes, Greg KH, (Tue Dec 4, 2:28 pm)
Re: [git pull] scheduler fixes, Luiz Fernando N. Capitulino..., (Tue Dec 4, 2:41 pm)
Re: [git pull] scheduler fixes, Ingo Molnar, (Tue Dec 4, 5:04 pm)
Re: [git pull] scheduler fixes, Luiz Fernando N. Capitulino..., (Tue Dec 4, 12:40 pm)
Re: [local DoS] Re: Linux 2.6.24-rc4, Luiz Fernando N. Capitulino..., (Tue Dec 4, 12:04 pm)
Re: [local DoS] Re: Linux 2.6.24-rc4, Ingo Molnar, (Tue Dec 4, 12:08 pm)
Re: Linux 2.6.24-rc4, Nicolas Pitre, (Tue Dec 4, 9:22 am)
Re: Linux 2.6.24-rc4, Jeff Garzik, (Tue Dec 4, 12:04 pm)
[build failure] Re: Linux 2.6.24-rc4 on S390x, Kamalesh Babulal, (Tue Dec 4, 6:23 am)
Re: [build failure] Re: Linux 2.6.24-rc4 on S390x, Ingo Molnar, (Tue Dec 4, 6:32 am)
Re: [build failure] Re: Linux 2.6.24-rc4 on S390x, Martin Schwidefsky, (Tue Dec 4, 6:31 am)