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Re: [Xen-devel] xen.git branch reorg / success with 2.6.30-rc3 pv_ops dom0
- To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
- From: Dulloor <dulloor@xxxxxxxxx>
- Date: Mon, 29 Jun 2009 17:23:40 -0400
- Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
- Delivery-date: Mon, 29 Jun 2009 14:24:09 -0700
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Please check the other thread titled "pvops bug". I ran into issues without HT (on a core-2 quad machine). My crude fix as well as Ian's crude patch, both serializing unpin pte call avoids crash. I can look into it once I find time. If you have any clue, I can try earlier.
-dulloor
On Tue, Jun 16, 2009 at 3:31 PM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
On 06/16/09 03:35, Ian Campbell wrote:
Interesting in the light of a comment from Ingo Molnar this morning on
LKML:
Plus this system is an old P4 HyperThreading dual-socket system:
pretty much the only thing HyperThreading is good for on that box is
finding SMP races: that CPU can (and will) yield between
hyperthreads on arbitrary instruction boundaries - opening up races
wide open.
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