lkml.org 
[lkml]   [2007]   [Jul]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] [2/11] x86: Fix alternatives and kprobes to remap write-protected kernel text
* Jeremy Fitzhardinge (jeremy@goop.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@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-07-24 17:23    [W:1.107 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site