[libvirt] Fwd: libvirt 1.2.10 and latest EL6 qemu-kvm

Sat Feb 14 07:34:31 UTC 2015

On Fri, Feb 13, 2015 at 05:32:36PM +0100, Franky Van Liedekerke wrote:
> Since there was no reaction in the user list, I'm posting it in the
> devel in the hope for some guidance to the problem mentioned below
> (sorry about this).
> 
> Franky
> 
> 
> ---------- Forwarded message ----------
> From: Franky Van Liedekerke <franky at e-dynamics.be>
> Date: Wed, Feb 11, 2015 at 3:44 PM
> Subject: Re: libvirt 1.2.10 and latest EL6 qemu-kvm
> To: libvirt-users at redhat.com
> 
> 
> (I'm sorry, I didn't find my original message but I provide the
> archive link: https://www.redhat.com/archives/libvirt-users/2015-January/msg00069.html
> )
> 
> I just tried the latest libvirt release (1.2.12), combined with the
> following qemu EL6 package from centos:
> qemu-kvm-0.12.1.2-2.448.el6_6.x86_64
> 
> Using 1.2.12 and this version of qemu-kvm, I still get the following
> error when trying to start a domain:
> 
> error: Failed to start domain btcab0001ap.unix.banksys.be
> error: internal error: unable to execute QEMU command 'qom-list': The
> command qom-list has not been found
> 
> The older qemu package (qemu-kvm-0.12.1.2-2.415.el6_5.14.x86_64) works
> just fine though (I also tried the qemu-rhev-packages for el6 from
> ovirt, but no change).
> I verified the changelog from libvirt 1.2.12 and the earlier suggested
> fix is in there (but doesn't seem to change anything):
> 
> 2015-01-14  Pavel Hrdina  <phrdina at redhat.com>
>         qemu_monitor: introduce new function to get QOM path
> 
> 
> Now, I have activated libvirtd debug and these are the qom-list lines
> (I can provide the full logfile if wanted):
> 
> 2015-02-11 14:10:33.259+0000: 13280: debug : virJSONValueToString:1528
> : result={"execute":"qom-list","arguments":{"path":"/machine/unattached/device[0]"},"id":"libvirt-5"}
> 2015-02-11 14:10:33.259+0000: 13280: debug :
> qemuMonitorJSONCommandWithFd:290 : Send command
> '{"execute":"qom-list","arguments":{"path":"/machine/unattached/device[0]"},"id":"libvirt-5"}'
> for write with FD -1
> 2015-02-11 14:10:33.259+0000: 13280: info : qemuMonitorSend:972 :
> QEMU_MONITOR_SEND_MSG: mon=0x7fa62801cbf0
> msg={"execute":"qom-list","arguments":{"path":"/machine/unattached/device[0]"},"id":"libvirt-5"}
> 2015-02-11 14:10:33.260+0000: 13278: info : qemuMonitorIOWrite:503 :
> QEMU_MONITOR_IO_WRITE: mon=0x7fa62801cbf0
> buf={"execute":"qom-list","arguments":{"path":"/machine/unattached/device[0]"},"id":"libvirt-5"}
> 2015-02-11 14:10:33.261+0000: 13278: info : qemuMonitorIOProcess:399 :
> QEMU_MONITOR_IO_PROCESS: mon=0x7fa62801cbf0 buf={"id": "libvirt-5",
> "error": {"class": "CommandNotFound", "desc": "The command qom-list
> has not been found", "data": {"name": "qom-list"}}}
> 2015-02-11 14:10:33.261+0000: 13278: debug :
> qemuMonitorJSONIOProcessLine:183 : Line [{"id": "libvirt-5", "error":
> {"class": "CommandNotFound", "desc": "The command qom-list has not
> been found", "data": {"name": "qom-list"}}}]
> 2015-02-11 14:10:33.261+0000: 13278: debug :
> virJSONValueFromString:1361 : string={"id": "libvirt-5", "error":
> {"class": "CommandNotFound", "desc": "The command qom-list has not
> been found", "data": {"name": "qom-list"}}}
> 2015-02-11 14:10:33.261+0000: 13278: info :
> qemuMonitorJSONIOProcessLine:203 : QEMU_MONITOR_RECV_REPLY:
> mon=0x7fa62801cbf0 reply={"id": "libvirt-5", "error": {"class":
> "CommandNotFound", "desc": "The command qom-list has not been found",
> "data": {"name": "qom-list"}}}
> 2015-02-11 14:10:33.289+0000: 13280: debug : virJSONValueToString:1528
> : result={"execute":"qom-list","arguments":{"path":"/machine/peripheral"},"id":"libvirt-7"}
> 2015-02-11 14:10:33.289+0000: 13280: debug :
> qemuMonitorJSONCommandWithFd:290 : Send command
> '{"execute":"qom-list","arguments":{"path":"/machine/peripheral"},"id":"libvirt-7"}'
> for write with FD -1
> 2015-02-11 14:10:33.289+0000: 13280: info : qemuMonitorSend:972 :
> QEMU_MONITOR_SEND_MSG: mon=0x7fa62801cbf0
> msg={"execute":"qom-list","arguments":{"path":"/machine/peripheral"},"id":"libvirt-7"}
> 2015-02-11 14:10:33.289+0000: 13278: info : qemuMonitorIOWrite:503 :
> QEMU_MONITOR_IO_WRITE: mon=0x7fa62801cbf0
> buf={"execute":"qom-list","arguments":{"path":"/machine/peripheral"},"id":"libvirt-7"}
> 2015-02-11 14:10:33.291+0000: 13278: info : qemuMonitorIOProcess:399 :
> QEMU_MONITOR_IO_PROCESS: mon=0x7fa62801cbf0 buf={"id": "libvirt-7",
> "error": {"class": "CommandNotFound", "desc": "The command qom-list
> has not been found", "data": {"name": "qom-list"}}}
> 2015-02-11 14:10:33.291+0000: 13278: debug :
> qemuMonitorJSONIOProcessLine:183 : Line [{"id": "libvirt-7", "error":
> {"class": "CommandNotFound", "desc": "The command qom-list has not
> been found", "data": {"name": "qom-list"}}}]
> 2015-02-11 14:10:33.291+0000: 13278: debug :
> virJSONValueFromString:1361 : string={"id": "libvirt-7", "error":
> {"class": "CommandNotFound", "desc": "The command qom-list has not
> been found", "data": {"name": "qom-list"}}}
> 2015-02-11 14:10:33.291+0000: 13278: info :
> qemuMonitorJSONIOProcessLine:203 : QEMU_MONITOR_RECV_REPLY:
> mon=0x7fa62801cbf0 reply={"id": "libvirt-7", "error": {"class":
> "CommandNotFound", "desc": "The command qom-list has not been found",
> "data": {"name": "qom-list"}}}
> 2015-02-11 14:10:33.291+0000: 13280: debug : virJSONValueToString:1528
> : result={"execute":"qom-list","arguments":{"path":"/machine/peripheral"},"id":"libvirt-7"}
> 2015-02-11 14:10:33.292+0000: 13280: debug : virJSONValueToString:1528
> : result={"id":"libvirt-7","error":{"class":"CommandNotFound","desc":"The
> command qom-list has not been found","data":{"name":"qom-list"}}}
> 2015-02-11 14:10:33.292+0000: 13280: debug :
> qemuMonitorJSONCheckError:370 : unable to execute QEMU command
> {"execute":"qom-list","arguments":{"path":"/machine/peripheral"},"id":"libvirt-7"}:
> {"id":"libvirt-7","error":{"class":"CommandNotFound","desc":"The
> command qom-list has not been found","data":{"name":"qom-list"}}}
> 2015-02-11 14:10:33.292+0000: 13280: error :
> qemuMonitorJSONCheckError:381 : internal error: unable to execute QEMU
> command 'qom-list': The command qom-list has not been found
> 
> (again: full log can be provided, but maybe that should be sent in
> private, I don't know if it is allowed as an attachment here).
> 
> Any tips?
> 
> Franky

Hi, I'm sorry that I didn't replay to the mail sent to libvirt user list. We
know about this issue and it's our bug that needs to be fixed. We will need to
add detection whether qemu supports qom-list or not. Only workaround that you
can do is use older qemu or older libvirt.

Pavel

> 
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