Bug#603632: [Xen-devel] PVops domain 0 crash on NUMA system only Node==1 present (Was: Re: Bug#603632: linux-image-2.6.32-5-xen-amd64: Linux kernel 2.6.32/xen/amd64 booting fine on bare metal, but not as dom0 with Xen 4.0.1 (Dell R410))

[Ian Campbell <Ian.Campbell@citrix.com>]

On Tue, 2010-11-23 at 11:51 +0000, Ian Campbell wrote:
> 
> Perhaps we should be passing numa_node_id() (e.g. current node)
> instead of node 0? 

I've just kicked off a build of the 2.6.32-27 Debian kernel with the
following additional patch, I will hopefully post the binaries tomorrow.
If you already have the capability to build a custom kernel in place you
might like to try it before then. 

Ian.

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 7b29ae1..868b172 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -418,7 +418,7 @@ static int find_unbound_irq(void)
 	if (irq == start)
 		goto no_irqs;
 
-	desc = irq_to_desc_alloc_node(irq, 0);
+	desc = irq_to_desc_alloc_node(irq, numa_node_id());
 	if (WARN_ON(desc == NULL))
 		return -1;