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Re: [Xen-devel] xend internal error on 4.0.0-rc6-pre

To: EdNadolski <Ed.Nadolski@xxxxxxx>, Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] xend internal error on 4.0.0-rc6-pre
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Fri, 5 Mar 2010 10:41:55 -0800 (PST)
Cc: "Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx>
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> Does Xen 4.0.0-rc5 work? (from the rpms)

xen-4.0.0-0.2.rc6.fc12.src.rpm has been built
matching the tip CS 20997:b8d2a4134a68 generates rpms :-

[root@fedora x86_64]# cat inst.sh
yum install xen-4.0.0-0.2.rc6.fc12.x86_64.rpm \
xen-debuginfo-4.0.0-0.2.rc6.fc12.x86_64.rpm \
xen-devel-4.0.0-0.2.rc6.fc12.x86_64.rpm \
xen-doc-4.0.0-0.2.rc6.fc12.x86_64.rpm \
xen-hypervisor-4.0.0-0.2.rc6.fc12.x86_64.rpm  \
xen-libs-4.0.0-0.2.rc6.fc12.x86_64.rpm \
xen-runtime-4.0.0-0.2.rc6.fc12.x86_64.rpm

which been installed upgrade Xen and allows to load Michael's Young the most recent kernel
for Dom0 support

host                   : fedora
release                : 2.6.32.9-1.2.89.xendom0.fc12.x86_64
version                : #1 SMP Thu Mar 4 13:04:28 MSK 2010
machine                : x86_64
nr_cpus                : 4
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 2833
hw_caps                : bfebfbff:20100800:00000000:00000940:0408e3fd:00000000:00000001:00000000
virt_caps              : hvm
total_memory           : 8162
free_memory            : 131
node_to_cpu            : node0:0-3
node_to_memory         : node0:131
node_to_dma32_mem      : node0:127
max_node_id            : 0
xen_major              : 4
xen_minor              : 0
xen_extra              : .0-rc6-pre
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        :
cc_compiler            : gcc version 4.4.2 20091222 (Red Hat 4.4.2-20) (GCC)
cc_compile_by          : root
cc_compile_domain      :
cc_compile_date        : Fri Mar  5 21:07:54 MSK 2010
xend_config_format     : 4

Details :-

xen-4.0.0-0.2.rc6.fc12.src.rpm  was built for Xen 4.0 hg-tree status

[root@fedora xen-unstable.hg]# hg log|more
changeset:   20997:b8d2a4134a68
tag:         tip
user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
date:        Wed Mar 03 17:41:58 2010 +0000
summary:     x86-64: fix hotplug fault handling for 32-bit domains' M2P range

changeset:   20996:401c0012b827
user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
date:        Wed Mar 03 17:40:48 2010 +0000
summary:     xentop: tmem: no stats for non-tmem domains

changeset:   20995:6c338a5830b5
user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
date:        Wed Mar 03 17:40:22 2010 +0000
summary:     Fix domain exit actions that contain hyphen

changeset:   20994:71af69a9d393
user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
date:        Wed Mar 03 17:39:22 2010 +0000
summary:     Replace config file parser for "xl"

changeset:   20993:4554b305228a
user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
date:        Tue Mar 02 14:05:35 2010 +0000
summary:     x86: use key handler scratch buffer in dump_irqs()

changeset:   20992:92984e102687
user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
date:        Tue Mar 02 13:43:48 2010 +0000
summary:     x86/acpi: Add a missing CR in printk

changeset:   20991:6430786865e4
user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
date:        Tue Mar 02 13:42:55 2010 +0000
summary:     Update Xen version to 4.0.0-rc6-pre
. . . . 

Boris.


Boris.

--- On Fri, 3/5/10, Pasi Kärkkäinen <pasik@xxxxxx> wrote:

From: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] xend internal error on 4.0.0-rc6-pre
To: "Nadolski, Ed" <Ed.Nadolski@xxxxxxx>
Cc: "Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx>
Date: Friday, March 5, 2010, 9:25 AM

On Fri, Mar 05, 2010 at 06:38:00AM -0700, Nadolski, Ed wrote:
> With Xen 4.0.0-rc6-pre on Fedora 12, I see the following error when trying to start xend:
>

Does Xen 4.0.0-rc5 work? (from the rpms)

> # python -V
> Python 2.6.2
> # xend start
> ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory)
> Traceback (most recent call last):
>   File "/usr/sbin/xend", line 36, in <module>
>     from xen.xend.server import SrvDaemon
>   File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvDaemon.py", line 26, in <module>
>     import relocate
>   File "/usr/lib64/python2.6/site-packages/xen/xend/server/relocate.py", line 28, in <module>
>     from xen.xend import XendDomain
>   File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomain.py", line 36, in <module>
>     from xen.xend import XendOptions, XendCheckpoint, XendDomainInfo
>   File "/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py", line 20, in <module>
>     from xen.xend import balloon, sxp, image
>   File "/usr/lib64/python2.6/site-packages/xen/xend/image.py", line 46, in <module>
>     xc = xen.lowlevel.xc.xc()
> xen.lowlevel.xc.Error: (1, 'Internal error', 'Could not obtain handle on privileged command interface (2 = No such file or directory
> )')
>

Hmm.. do you have xen-evtchn module loaded? Do you have /proc/xen (xenfs) mounted?

-- Pasi

> This looks very similar to this existing, open bug:
>
> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1436
>
> It appears this bug was opened 2009-03-21 but the status still shows as 'NEW'.  Does anyone have more info on this?   Is there a workaround?
>
> Thanks in advance,
> Ed
>
> PS, here is my Xen/Linux info:
>
> (XEN) Xen version 4.0.0-rc6-pre (root@) (gcc version 4.4.2 20091027 (Red Hat 4.4.2-7) (GCC) ) Thu Mar  4 21:32:45 MST 2010
> (XEN) Latest ChangeSet: Wed Mar 03 17:41:58 2010 +0000 20997:b8d2a4134a68
> (XEN) Console output is synchronous.
> (XEN) Command line: acpi_skip_timer_override loglvl=all guest_loglvl=all sync_console console_to_ring com1=115200,8n1 console=com1
>
> [    0.000000] Linux version 2.6.31.6 (root@truckee) (gcc version 4.4.2 20091027 (Red Hat 4.4.2-7) (GCC) ) #1 SMP Thu Mar 4 20:59:13 MST 2010
> [    0.000000] Command line: ro root=UUID=5d34160d-d728-4e6e-b66d-9e1632aa6dd5  LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen acpi_skip_timer_override
>
>
>
> _______________________________________________
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> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

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