From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [Xen-users] 2.6.23 oops
Date: Thu, 11 Oct 2007 23:21:34 -0700
Message-ID: <470F126E.7050108@goop.org>
References: <20071011144817.n5x1drwcgug44sg0@whitelist.dk>
	<20071011210001.cpd3whfy5ogwkwwc@whitelist.dk>
	<470E8FE8.6050908@goop.org>
	<200710120514.09486.mark.williamson@cl.cam.ac.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <200710120514.09486.mark.williamson@cl.cam.ac.uk>
List-Unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Mark Williamson <mark.williamson@cl.cam.ac.uk>
Cc: xen-devel@lists.xensource.com, =?UTF-8?B?TW9ydGVuIELDuGdlc2tvdg==?= <xen-users@morten.bogeskov.dk>
List-Id: xen-devel@lists.xenproject.org

Mark Williamson wrote:
> Actually, I think the kernel is hanging in an infinite loop whilst trying to 
> measure loops per jiffies...  For some reason the UP kernel isn't getting 
> timer interrupts from Xen at this point, whereas the SMP kernel is.  I've not 
> figured out why this could be happening, yet, but that's where I am at the 
> moment.


I can't reproduce that specific symptom, but this may help.

diff -r 25f5c8bdd699 arch/i386/xen/enlighten.c
--- a/arch/i386/xen/enlighten.c	Thu Oct 11 18:46:33 2007 -0700
+++ b/arch/i386/xen/enlighten.c	Thu Oct 11 23:20:29 2007 -0700
@@ -115,7 +115,7 @@ static void __init xen_vcpu_setup(int cp
 	info.mfn = virt_to_mfn(vcpup);
 	info.offset = offset_in_page(vcpup);
 
-	printk(KERN_DEBUG "trying to map vcpu_info %d at %p, mfn %x, offset %d\n",
+	printk(KERN_DEBUG "trying to map vcpu_info %d at %p, mfn %llx, offset %d\n",
 	       cpu, vcpup, info.mfn, info.offset);
 
 	/* Check to see if the hypervisor will put the vcpu_info
diff -r 25f5c8bdd699 include/xen/interface/vcpu.h
--- a/include/xen/interface/vcpu.h	Thu Oct 11 18:46:33 2007 -0700
+++ b/include/xen/interface/vcpu.h	Thu Oct 11 23:20:29 2007 -0700
@@ -160,8 +160,9 @@ struct vcpu_set_singleshot_timer {
  */
 #define VCPUOP_register_vcpu_info   10  /* arg == struct vcpu_info */
 struct vcpu_register_vcpu_info {
-    uint32_t mfn;               /* mfn of page to place vcpu_info */
-    uint32_t offset;            /* offset within page */
+    uint64_t mfn;    /* mfn of page to place vcpu_info */
+    uint32_t offset; /* offset within page */
+    uint32_t rsvd;   /* unused */
 };
 
 #endif /* __XEN_PUBLIC_VCPU_H__ */


    J