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[Xen-ia64-devel] [PATCH] Return ENOMEM if VPD allocation failed
| To: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-ia64-devel] [PATCH] Return ENOMEM if VPD allocation failed |
| From: | Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx> |
| Date: | Thu, 10 May 2007 21:01:04 +0900 |
| Delivery-date: | Thu, 10 May 2007 05:00:31 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxx |
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| List-id: | Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com> |
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| Sender: | xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx |
Hi, Usually ASSRET() is "(void)0". Therefore if VPD allocation fails with xenheap shortage or fragmentation, NULL pointer access occurs in vmx_final_setup_guest(). This patch fixes it. BTW, I succeeded to creating 60 UP-domains. But I failed to creating many SMP-domains with xenheap shortage. I failed in the following environments. - 55 domains, and - each 5 vcpus If we would like to support many domains and many vcpus, I think that we should expand xenheap. I think that the simplest method is changing PS of ITR[0] and DTR[0] to 256M byte. Do you have good ideas? Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx> Best regards, Kan
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