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RE: [Xen-devel] [PATCH] xm --version


  • To: "aq" <aquynh@xxxxxxxxx>
  • From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
  • Date: Thu, 9 Jun 2005 02:18:07 +0100
  • Cc: Xen Dev <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 09 Jun 2005 01:17:17 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcVsj4brNdUa7lYeSIm1+kc+EB18EAAATXwA
  • Thread-topic: [Xen-devel] [PATCH] xm --version

> can you confirm that ht_per_core is also wrongly set? it is 
> set (=1) at arch/x86/setup.c or arch/ia64/smpboot.c, but 
> never changed. but this variable is used somewhere, and got 
> reported in "xm info", for example.
> 
> so all of its usage are also wrong when we use HT? (because 
> in that case ht_per_core must be 2)

OK, that's bad -- the code that initialised ht_per_core has also gone.

What we need to do is to take the new code from Linux 2.6.12-rc5 that
understands multicore, and correctly initialise ht_per_core and
core_per_socket. We can hardwire socket_per_node=1 for the moment.

Thanks,
Ian

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