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Re: port-xen/46105: hypervisor-dependent(?) xen crash
On Mon, Feb 27, 2012 at 01:25:01AM +0000, riz%NetBSD.org@localhost wrote:
> While creating NetBSD 6.0_BETA/i386 AMIs for Amazon EC2, 2 out of
> 7 did not come up properly. When I investigated more closely,
> both the ones which did not come up had a hypervisor version of
> 3.1, while all the others were 3.4.
> Other details: the instances only had 1 vcpu, so MP should not
> be a factor. The regions where the failures occurred (and
> are more likely, I guess, to have 3.1 hypervisors) were "us-west-1"
> and "ap-northeast-1".
> Here is the console log for one of the crashed instances:
Hum, 6.0_BETA 201202250740Z boots fine for me on a NetBSD/amd64 domains0
and 3.1.4 hypervisor. I tested both i386PAE and amd64 domUs.
I fear it's one of the bugs we fixed with recursive table pages;
if so it's going to be hard to work around.
Do you know if it happens with all Amazon 3.1 hypervisors, or only
I guess there's no way to restricy a domain to some hypervisor versions
on amazon ?
Also, please apply the attached diff if you can reproduce this.
It prints the tiny version of the hypervisor, which can help identifing bugs
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
NetBSD: 26 ans d'experience feront toujours la difference
RCS file: /cvsroot/src/sys/arch/xen/xen/hypervisor.c,v
retrieving revision 1.61
diff -u -p -u -r1.61 hypervisor.c
--- hypervisor.c 17 Feb 2012 18:42:19 -0000 1.61
+++ hypervisor.c 27 Feb 2012 11:34:09 -0000
@@ -210,12 +210,15 @@ hypervisor_attach(device_t parent, devic
#endif /* NPCI */
union hypervisor_attach_cookie hac;
+ char xen_extra_version[XEN_EXTRAVERSION_LEN];
xen_version = HYPERVISOR_xen_version(XENVER_version, NULL);
- aprint_normal(": Xen version %d.%d\n", XEN_MAJOR(xen_version),
+ memset(xen_extra_version, 0, sizeof(xen_extra_version));
+ HYPERVISOR_xen_version(XENVER_extraversion, xen_extra_version);
+ aprint_normal(": Xen version %d.%d%s\n", XEN_MAJOR(xen_version),
+ XEN_MINOR(xen_version), xen_extra_version);
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