Problems starting xend in xen 4.0 and 2.6.32.15

Problems starting xend in xen 4.0 and 2.6.32.15

[Jia Rao]

[-- Attachment #1.1: Type: text/plain, Size: 956 bytes --]

This issue has been posted before, but no clear solution, i am sending
again.

2.6.32 pvops dom0 booted with xen 4.0. However the xend can not start.
I believe that is something related to the *evtchn*.
I compile the CONFIG_XEN_DEV_EVTCHN=y in kernel, so i donot need to load it.
When the dom0 booted, I can see there is a entry for evtchn in /dev/xen
along with gntdev.

But when xend starts, the evtchn in /dev/xen disappeared. and xend is not
properly started.
The error log in /var/log/xen/xend.log is the following:

[2010-06-18 10:51:35 4685] INFO (SrvDaemon:332) Xend Daemon started
[2010-06-18 10:51:35 4685] INFO (SrvDaemon:336) Xend changeset: unavailable.
[2010-06-18 10:51:35 4685] ERROR (SrvDaemon:349) Exception starting xend
((111, 'Connection refused'))

I am using a centos 5, which has an old udev. I tried to modified the udev
rules in /etc/udev/rules.d/xen-backend.
rules and changed evtchn to xen-evtchn. No luck.

Any ideas?

Thanks.

[-- Attachment #1.2: Type: text/html, Size: 1070 bytes --]

[-- Attachment #2: Type: text/plain, Size: 138 bytes --]

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Re: Problems starting xend in xen 4.0 and 2.6.32.15 .. evtchn -> xen/evtchn under RHEL = not happy

[Konrad Rzeszutek Wilk]

On Mon, Jun 21, 2010 at 05:14:39PM -0400, Jia Rao wrote:
> This issue has been posted before, but no clear solution, i am sending
> again.
> 
> 2.6.32 pvops dom0 booted with xen 4.0. However the xend can not start.
> I believe that is something related to the *evtchn*.
> I compile the CONFIG_XEN_DEV_EVTCHN=y in kernel, so i donot need to load it.
> When the dom0 booted, I can see there is a entry for evtchn in /dev/xen
> along with gntdev.
> 
> But when xend starts, the evtchn in /dev/xen disappeared. and xend is not
> properly started.
> The error log in /var/log/xen/xend.log is the following:
> 
> [2010-06-18 10:51:35 4685] INFO (SrvDaemon:332) Xend Daemon started
> [2010-06-18 10:51:35 4685] INFO (SrvDaemon:336) Xend changeset: unavailable.
> [2010-06-18 10:51:35 4685] ERROR (SrvDaemon:349) Exception starting xend
> ((111, 'Connection refused'))
> 
> I am using a centos 5, which has an old udev. I tried to modified the udev
> rules in /etc/udev/rules.d/xen-backend.
> rules and changed evtchn to xen-evtchn. No luck.

Yeah. We added a patch that would change the name to 'xen/evtchn'
instead of 'evtchn'. (git commit
376d908f52427591cef4acd172db9c3ef28676ec)

I am not really sure what corresponding change in userspace goes
with it..

Re: [Xen-devel] Problems starting xend in xen 4.0 and 2.6.32.15 .. evtchn -> xen/evtchn under RHEL = not happy

[M A Young]

On Mon, 21 Jun 2010, Konrad Rzeszutek Wilk wrote:

> Yeah. We added a patch that would change the name to 'xen/evtchn'
> instead of 'evtchn'. (git commit
> 376d908f52427591cef4acd172db9c3ef28676ec)
>
> I am not really sure what corresponding change in userspace goes
> with it..

http://xenbits.xen.org/xen-4.0-testing.hg?rev/0e1521f654f2
which means you need xen-4.0.1-rc2 or later or 4.0.0 with this patch 
applied (there is a patch in the 3.4 hg that you can apply to 3.4.3 as 
well).

 	Michael Young