lkml.org 
[lkml]   [2007]   [May]   [17]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateThu, 17 May 2007 02:36:21 -0400
FromBernardo Innocenti <>
SubjectRe: kdb: add rdmsr and wrmsr commands for i386
Keith Owens wrote:

> Before using MSR, you must first check that the cpu supports the
> instruction, rd/wrmsr cause an oops on 486 or earlier.  Also using an
> invalid msr number causes an oops, so use rd/wrmsr_safe().

I didn't bother implementing those checks because kdb recovers
nicely from GPF anyway.  It's the valid MSR writes that could
cause unrecoveable problems! :)

-- 
   // Bernardo Innocenti
 \X/  http://www.codewiz.org/
-
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: 2007-05-17 08:39    [from the cache]
©2003-2008