[Xen-bugs] [Bug 743] Unable to start more than a few domU's on RHEL4 amd64 (Error: Backend device not found)

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=743





------- Comment #8 from tejasvia@xxxxxxxxx  2006-08-28 16:43 -------
This is another chunk from the syslog that might be relevant to one of the
errors:
==========
Aug 28 19:39:16 compute-5-24 TAPDISK: Entered cookie 61687
Aug 28 19:39:16 compute-5-24 BLKTAPCTRL: Received CTLMSG_IMG_FAIL, unable to
open image
Aug 28 19:39:16 compute-5-24 logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/tap/66/769
Aug 28 19:39:16 compute-5-24 BLKTAPCTRL: Read_msg failure - CTLMSG_IMG
Aug 28 19:39:16 compute-5-24 logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/vif/66/0
Aug 28 19:39:16 compute-5-24 BLKTAPCTRL: Unmapping vbd
Aug 28 19:39:16 compute-5-24 BLKTAPCTRL: Write_msg called: CTLMSG_CLOSE
Aug 28 19:39:16 compute-5-24 BLKTAPCTRL: DEL_DISKTYPE: Freeing entry
Aug 28 19:39:16 compute-5-24 /usr/sbin/gmond[3267]: mcast_thread() error
multicasting
Aug 28 19:39:20 compute-5-24 last message repeated 5 times
Aug 28 19:39:20 compute-5-24 logger: /etc/xen/scripts/xen-hotplug-cleanup:
Forced to steal lock on /var/run/xen-hotplug/block from 21299:
/etc/xen/scripts/xen-hotplug-cleanup!
Aug 28 19:39:22 compute-5-24 kernel: [ 1209.418102] tap tap-68-769: 2 getting
info
Aug 28 19:39:22 compute-5-24 kernel: [ 1209.419434] tap tap-68-770: 2 getting
info
Aug 28 19:39:22 compute-5-24 kernel: [ 1209.420950] tap tap-68-771: 2 getting
info
Aug 28 19:39:22 compute-5-24 BLKTAPCTRL: Received a poll for a new vbd
Aug 28 19:39:22 compute-5-24 BLKTAPCTRL: /dev/xen/blktap12 device already
exists
Aug 28 19:39:22 compute-5-24 BLKTAPCTRL: Received device id 12 and major 254,
sent domid 65 and be_id 769
Aug 28 19:39:22 compute-5-24 BLKTAPCTRL: Detected handle: [aio]
Aug 28 19:39:22 compute-5-24 BLKTAPCTRL: Process does not exist:
Aug 28 19:39:22 compute-5-24 BLKTAPCTRL: Launching process, CMDLINE [tapdisk
/dev/xen/tapctrlwrite12 /dev/xen/tapctrlread12]
Aug 28 19:39:22 compute-5-24 logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/tap/66/771
Aug 28 19:39:22 compute-5-24 logger: /etc/xen/scripts/blktap: remove
XENBUS_PATH=backend/tap/66/770
Aug 28 19:39:23 compute-5-24 logger: /etc/xen/scripts/blktap: add
XENBUS_PATH=backend/tap/67/770
Aug 28 19:39:23 compute-5-24 logger: /etc/xen/scripts/blktap: Writing
backend/tap/67/770/hotplug-status connected to xenstore.
Aug 28 19:39:24 compute-5-24 /usr/sbin/gmond[3267]: mcast_thread() error
multicasting
Aug 28 19:39:27 compute-5-24 last message repeated 2 times
Aug 28 19:39:27 compute-5-24 logger: /etc/xen/scripts/xen-hotplug-cleanup:
Forced to steal lock on /var/run/xen-hotplug/block from 21920:
/etc/xen/scripts/xen-hotplug-cleanup!
Aug 28 19:39:28 compute-5-24 /usr/sbin/gmond[3267]: mcast_thread() error
multicasting
Aug 28 19:39:28 compute-5-24 logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/tap/66/770
(END)


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