Messages in this thread | | | Date | Sun, 14 Nov 2010 21:37:33 +0100 | Subject | Re: [PATCH v3, x86]: Use selfsnoop HW feature to manage conflicting memory types | From | Uros Bizjak <> |
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On Sun, Nov 14, 2010 at 7:33 PM, Uros Bizjak <ubizjak@gmail.com> wrote: > Hello! > > Attached patch enhances v2 patch at [1] to disable selfsnoop with a > kernel command line parameter. The feature is also disabled on all > processors earlier than Core 2 due to Pentium-M errata. > > I have investigated the erratas in this area and documented the one > found in the source. > > The patch was tested on 4 core i7 (8 threads) and there were no > problems at all with the patched kernel.
Also, I'd like to point out that similar change was introduced in FreeBSD as part of r195749 in July 2009, see [1].
[1] http://svn.freebsd.org/viewvc/base?view=revision&revision=195749
Uros.
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