Strange SMP/HTT issue

Brooks Davis brooks at one-eyed-alien.net
Thu May 19 17:47:14 PDT 2005


On Thu, May 19, 2005 at 07:39:17PM -0500, Stephen Montgomery-Smith wrote:
> I just upgraded to a very recent RELENG_5 (like 2 days ago).  I have a 
> dual Xeon with HTT enabled.  The funny thing is that top only displays 
> 'C' as '0' or '2' suggesting that some of the 4 logical CPU's are not 
> running.  Also, my multiply running programs only run half as fast.
> 
> I went back to an older RELENG_5 (as of May 2), and the problem cleared 
> itself up.
> 
> Maybe someone has already fixed this issue.  Just thought you guys 

You might want to consider subscribing to security-announce so you can
see security advisories.  HTT has been disabled by default.  For
details, see:

ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:09.htt.asc

-- Brooks

--
Any statement of the form "X is the one, true Y" is FALSE.
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