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Date: Tue, 24 Jul 2007 11:20:18 -0400 From: Mathieu Desnoyers <compudj@...stal.dyndns.org> To: Jeremy Fitzhardinge <jeremy@...p.org> Cc: Rusty Russell <rusty@...tcorp.com.au>, Andi Kleen <ak@...e.de>, jbeulich@...ell.com, zach@...are.com, patches@...-64.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] [2/11] x86: Fix alternatives and kprobes to remap write-protected kernel text * Jeremy Fitzhardinge (jeremy@...p.org) wrote: > Mathieu Desnoyers wrote: > > Hi Rusty, > > > > Good catch. I also still wonder why alternative (except alternative smp, > > which is ok) and paravirt patching functions are not marked __init. I really > > hope they are never used when NMI, MCE are enabled or when threads may > > have been preempted in the site being patched, or it could result in an > > illegal instruction. > > > > We need to patch modules at load time. Presumably an NMI/MCE handler > will not depend on code in a being-loaded module. > > J > Oh yes, I see. That's ok since the code of a being-loaded module is not executed yet. Thanks, Mathieu -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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