FreeBSD-SA-05:09.htt.asc

[Kris Kennaway]

On Fri, May 13, 2005 at 06:10:59AM -0500, H. S. wrote:
> Hi,
> 
> The advisory isn't very clear on the point I'm making, so, I'd like a
> confirmation of the following.
> 
> I have a dual xeon 2.4 server, with HTT disabled in the BIOS:
> 
> CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2399.33-MHz 686-class CPU)
>   Hyperthreading: 2 logical CPUs
> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
> SMP: AP CPU #1 Launched!
> 
> 
> >From the advisory:
> 
> "A security flaw involving operating systems running on Hyper-Threading
> Technology processors was has been reported."
> 
> Well, this  server CPUs surely run processors with HTT technology, it's
> just not being used, disabled directly in the BIOS. Am I still vulnerable
> to this flaw?

The workaround was to disable HTT, so you've already done it.

Kris
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-smp/attachments/20050513/1522f007/attachment.bin