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Re: [patch] Add basic sanity checks to the syscall execution patch

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From: Andi Kleen <andi@...>
To: Arjan van de Ven <arjan@...>
Cc: <linux-kernel@...>, <mingo@...>, <tglx@...>, <hpa@...>, Benjamin Herrenschmidt <benh@...>
Subject: Re: [patch] Add basic sanity checks to the syscall execution patch
Date: Thursday, September 4, 2008 - 8:01 am

Arjan van de Ven <arjan@infradead.org> writes:


This just means that the root kits will switch to patch
the first instruction of the entry points instead.

So the protection will be zero to minimal, but the overhead will
be there forever.

Now that I said this I expect it to go in yesterday.

-Andi

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Messages in current thread:
[patch] Add basic sanity checks to the syscall execution patch, Arjan van de Ven, (Wed Sep 3, 10:51 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Andi Kleen, (Thu Sep 4, 8:01 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Arjan van de Ven, (Thu Sep 4, 8:44 am)
Re: [patch] Add basic sanity checks to the syscall execution..., , (Fri Sep 5, 5:43 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Arjan van de Ven, (Fri Sep 5, 12:05 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Benjamin Herrenschmidt, (Fri Sep 5, 6:14 am)
Re: [patch] Add basic sanity checks to the syscall execution..., , (Fri Sep 5, 6:49 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Benjamin Herrenschmidt, (Fri Sep 5, 6:57 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Ingo Molnar, (Fri Sep 5, 7:42 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Willy Tarreau, (Fri Sep 5, 4:41 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Ingo Molnar, (Sat Sep 6, 11:45 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Pavel Machek, (Sun Sep 7, 8:53 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Jeroen van Rijn, (Sat Sep 6, 12:34 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., , (Fri Sep 5, 8:00 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Ingo Molnar, (Fri Sep 5, 11:42 am)
Re: [patch] Add basic sanity checks to the syscall execution..., , (Fri Sep 5, 12:23 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Ingo Molnar, (Fri Sep 5, 12:52 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., , (Fri Sep 5, 3:37 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Ingo Molnar, (Sat Sep 6, 11:42 am)
Re: [patch] Add basic sanity checks to the syscall execution..., , (Sat Sep 6, 8:17 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Andi Kleen, (Fri Sep 5, 1:26 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., , (Fri Sep 5, 3:42 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Andi Kleen, (Fri Sep 5, 4:48 pm)
Re: [patch] Add basic sanity checks to the syscall execution..., Andi Kleen, (Fri Sep 5, 8:01 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Alan Cox, (Thu Sep 4, 8:34 am)
Re: [patch] Add basic sanity checks to the syscall execution..., Andi Kleen, (Thu Sep 4, 9:06 am)

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