[Pkg-libvirt-maintainers] Bug#797513: Bug#797513: Regression in support for custom CPU configuration

Nikolaus Schulz ns at htonl.de
Tue Sep 1 22:54:19 UTC 2015 

On Wed, Sep 02, 2015 at 12:38:38AM +0200, Nikolaus Schulz wrote:
> On Tue, Sep 01, 2015 at 01:27:30PM +0200, Guido Günther wrote:
> > On Tue, Sep 01, 2015 at 11:40:52AM +0100, Ben Hutchings wrote:
> > > > I'd be keen to know what the <vendor> element says. I retried on a
> > > > Westmere and the CPU type is detected correctly.
> > 
> > It's indeed lacking the vendor attribute. I have:
> > 
> >   $ virsh capabilities | xpath -q -e //host/cpu/vendor
> >   <vendor>Intel</vendor>
> > 
> > while yours is empty which seems to be the regression.
> 
> Again, same here.  I've downgraded libvirt to 1.2.16 again, and here's
> the delta for the capabilities host node:
> 
> --- virsh-cap-1.2.16.xml	2015-09-02 00:20:50.989297520 +0200
> +++ virsh-cap-1.2.19.xml	2015-09-02 00:19:58.709038277 +0200
> @@ -1,10 +1,20 @@
>  <host>
> -    <uuid>638c5e1e-b80b-4ae0-a519-73a90ca4c1ad</uuid>
> +    <uuid>8c1ecff4-070d-4374-94f0-ce62022e53db</uuid>
>      <cpu>
>        <arch>i686</arch>
>        <model>coreduo</model>
> -      <vendor>Intel</vendor>
>        <topology sockets="1" cores="2" threads="1" />
> +      <feature name="avx512cd" />
> +      <feature name="avx512pf" />
> +      <feature name="adx" />
> +      <feature name="rdseed" />
> +      <feature name="avx512f" />
> +      <feature name="invpcid" />
> +      <feature name="bmi2" />
> +      <feature name="smep" />
> +      <feature name="avx2" />
> +      <feature name="hle" />
> +      <feature name="bmi1" />
>        <feature name="pdcm" />
>        <feature name="xtpr" />
>        <feature name="tm2" />
> 
> The features avx512cd..bmi1 are actually *not* supported by my old Core
> Duo T2400 CPU, and libvirt 1.2.16 rightly complains about that if I feed
> it such a cpu definition on my box.
> 
> > Can you check
> > syslog if there are any warnings or errors printed during libvirt
> > startup? If not I'm a bit puzzled since nothing changed recently in
> > this area.
> 
> I have no libvirt related errors in my log.

Ugh. Looking into /var/log/libvirt instead of syslog, I find plenty, see
attachment.

Nikolaus
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2015-08-23 15:40:33.565+0000: 7885: info : libvirt version: 1.2.16, package: 2 (buildd 2015-06-05-10:39:35 x86-csail-01)
2015-08-23 15:40:33.565+0000: 7885: error : virQEMUCapsParseHelpStr:1412 : internal error: QEMU / QMP failed: Could not access KVM kernel module: Permission denied
failed to initialize KVM: Permission denied

2015-08-23 15:40:33.565+0000: 7885: warning : virQEMUCapsLogProbeFailure:3460 : Failed to probe capabilities for /usr/bin/kvm: internal error: QEMU / QMP failed: Could not access KVM kernel module: Permission denied
failed to initialize KVM: Permission denied

2015-08-23 19:17:38.258+0000: 7874: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host14/unique_id': No such file or directory
2015-08-23 21:21:36.087+0000: 7874: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host16/unique_id': No such file or directory
2015-08-23 21:56:08.838+0000: 7874: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host18/unique_id': No such file or directory
2015-08-23 22:19:58.470+0000: 2212: info : libvirt version: 1.2.16, package: 2 (buildd 2015-06-05-10:39:35 x86-csail-01)
2015-08-23 22:19:58.470+0000: 2212: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types
2015-08-23 22:19:58.472+0000: 2212: warning : virQEMUCapsInit:1011 : Failed to get host power management capabilities
2015-08-23 22:26:58.618+0000: 2433: info : libvirt version: 1.2.16, package: 2 (buildd 2015-06-05-10:39:35 x86-csail-01)
2015-08-23 22:26:58.618+0000: 2433: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types
2015-08-23 22:26:58.619+0000: 2433: warning : virQEMUCapsInit:1011 : Failed to get host power management capabilities
2015-08-24 07:56:06.084+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host7/unique_id': No such file or directory
2015-08-24 08:56:17.353+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host9/unique_id': No such file or directory
2015-08-24 09:19:37.531+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host11/unique_id': No such file or directory
2015-08-24 09:37:09.202+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host13/unique_id': No such file or directory
2015-08-24 19:14:51.446+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host15/unique_id': No such file or directory
2015-08-24 19:34:28.353+0000: 2377: error : virPolkitCheckAuth:125 : authentication failed: no agent is available to authenticate
2015-08-24 19:34:28.356+0000: 2368: error : virNetSocketReadWire:1520 : End of file while reading data: Input/output error
2015-08-24 19:35:04.776+0000: 2371: error : virDirCreateNoFork:2296 : failed to create directory '/var/lib/libvirt/images': File exists
2015-08-24 20:06:37.701+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host17/unique_id': No such file or directory
2015-08-24 20:39:50.191+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host19/unique_id': No such file or directory
2015-08-24 21:47:47.781+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host21/unique_id': No such file or directory
2015-08-24 22:09:08.702+0000: 2378: error : virPolkitCheckAuth:125 : authentication failed: no agent is available to authenticate
2015-08-24 22:09:08.703+0000: 2368: error : virNetSocketReadWire:1520 : End of file while reading data: Input/output error
2015-08-24 22:15:32.511+0000: 2375: error : virStorageBackendFileSystemRefresh:854 : cannot open path '/root/libvirt': No such file or directory
2015-08-24 22:53:57.982+0000: 2372: error : virStorageFileGetMetadataRecurse:2991 : Cannot access storage file '/home/nikolaus/libvirt/win7.img' (as uid:126, gid:137): Permission denied
2015-08-24 23:14:34.124+0000: 2372: error : qemuBuildCpuModelArgStr:6972 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor GenuineIntel
2015-08-24 23:16:50.876+0000: 2372: warning : qemuDomainObjTaint:2007 : Domain id=5 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-24 23:35:04.467+0000: 2368: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-24 23:35:05.478+0000: 2375: warning : qemuDomainObjTaint:2007 : Domain id=6 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-24 23:38:27.916+0000: 2368: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-24 23:38:28.336+0000: 2371: warning : qemuDomainObjTaint:2007 : Domain id=7 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-25 01:20:21.953+0000: 2368: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-25 09:03:42.297+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host24/unique_id': No such file or directory
2015-08-25 09:16:20.870+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host26/unique_id': No such file or directory
2015-08-25 09:21:13.961+0000: 2372: warning : qemuDomainObjTaint:2007 : Domain id=8 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-25 09:21:32.478+0000: 2368: error : daemonStreamHandleAbort:617 : stream aborted at client request
2015-08-25 20:26:34.872+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host28/unique_id': No such file or directory
2015-08-25 21:15:20.020+0000: 2368: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-26 08:32:23.265+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host30/unique_id': No such file or directory
2015-08-26 08:37:53.999+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host32/unique_id': No such file or directory
2015-08-26 08:40:04.173+0000: 2372: warning : qemuDomainObjTaint:2007 : Domain id=9 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-26 08:50:31.791+0000: 2368: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-26 08:56:40.394+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host34/unique_id': No such file or directory
2015-08-26 18:56:12.649+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host36/unique_id': No such file or directory
2015-08-26 19:13:57.243+0000: 2368: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host38/unique_id': No such file or directory
2015-08-26 19:47:50.961+0000: 2512: info : libvirt version: 1.2.16, package: 2 (buildd 2015-06-05-10:39:35 x86-csail-01)
2015-08-26 19:47:50.961+0000: 2512: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types
2015-08-26 19:47:50.961+0000: 2512: warning : virQEMUCapsInit:1011 : Failed to get host power management capabilities
2015-08-26 19:47:51.083+0000: 2512: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types
2015-08-26 19:47:51.083+0000: 2512: warning : virLXCDriverCapsInit:88 : Failed to get host power management capabilities
2015-08-26 19:47:51.087+0000: 2512: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types
2015-08-26 19:47:51.087+0000: 2512: warning : umlCapsInit:74 : Failed to get host power management capabilities
2015-08-26 19:47:51.097+0000: 2512: error : virStorageBackendFileSystemRefresh:854 : cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-26 19:47:51.097+0000: 2512: error : storageDriverAutostart:208 : Failed to autostart storage pool 'libvirt': cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-26 20:32:21.601+0000: 2447: warning : qemuDomainObjTaint:2007 : Domain id=3 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-26 20:43:58.222+0000: 2446: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-26 21:26:56.256+0000: 2450: warning : qemuDomainObjTaint:2007 : Domain id=4 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-26 23:12:34.050+0000: 2447: error : qemuDomainAgentAvailable:3036 : argument unsupported: QEMU guest agent is not configured
2015-08-26 23:31:04.756+0000: 2446: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-27 07:14:22.292+0000: 2448: warning : qemuDomainObjTaint:2007 : Domain id=5 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-27 07:30:38.722+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host8/unique_id': No such file or directory
2015-08-27 08:18:46.012+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host10/unique_id': No such file or directory
2015-08-27 08:20:22.524+0000: 2448: error : virNumaGetMaxNode:184 : internal error: NUMA isn't available on this host
2015-08-27 22:03:29.454+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host12/unique_id': No such file or directory
2015-08-27 22:07:38.495+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host14/unique_id': No such file or directory
2015-08-27 22:34:58.125+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host16/unique_id': No such file or directory
2015-08-27 23:08:36.189+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host18/unique_id': No such file or directory
2015-08-27 23:34:40.946+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host20/unique_id': No such file or directory
2015-08-28 00:08:54.496+0000: 2446: error : qemuMonitorIO:715 : internal error: End of file from monitor
2015-08-28 08:01:12.699+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host22/unique_id': No such file or directory
2015-08-28 09:38:29.617+0000: 2446: error : virFileReadAll:1347 : Failed to open file '/sys/class/scsi_host//host24/unique_id': No such file or directory
2015-08-28 15:50:38.968+0000: 2450: warning : qemuDomainObjTaint:2007 : Domain id=6 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-08-28 16:22:05.858+0000: 31854: info : libvirt version: 1.2.18, package: 2 (buildd 2015-08-23-18:38:12 x86-grnet-01)
2015-08-28 16:22:05.858+0000: 31854: error : virQEMUCapsParseHelpStr:1438 : internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:05.858+0000: 31854: warning : virQEMUCapsLogProbeFailure:3536 : Failed to probe capabilities for /usr/bin/qemu-system-i386: internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:06.207+0000: 31854: error : virQEMUCapsParseHelpStr:1438 : internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:06.207+0000: 31854: warning : virQEMUCapsLogProbeFailure:3536 : Failed to probe capabilities for /usr/bin/kvm: internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:06.478+0000: 31854: error : virQEMUCapsParseHelpStr:1438 : internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:06.478+0000: 31854: warning : virQEMUCapsLogProbeFailure:3536 : Failed to probe capabilities for /usr/bin/qemu-system-x86_64: internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:06.733+0000: 31854: error : virQEMUCapsParseHelpStr:1438 : internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:06.733+0000: 31854: warning : virQEMUCapsLogProbeFailure:3536 : Failed to probe capabilities for /usr/bin/qemu-system-i386: internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:07.112+0000: 31854: error : virQEMUCapsParseHelpStr:1438 : internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:07.112+0000: 31854: warning : virQEMUCapsLogProbeFailure:3536 : Failed to probe capabilities for /usr/bin/kvm: internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:07.414+0000: 31854: error : virQEMUCapsParseHelpStr:1438 : internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:07.414+0000: 31854: warning : virQEMUCapsLogProbeFailure:3536 : Failed to probe capabilities for /usr/bin/qemu-system-x86_64: internal error: QEMU / QMP failed: Could not acquire pid file: No space left on device

2015-08-28 16:22:07.562+0000: 31854: error : virStorageBackendFileSystemRefresh:869 : cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-28 16:22:07.562+0000: 31854: error : storageDriverAutostart:203 : Failed to autostart storage pool 'libvirt': cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-28 16:22:07.582+0000: 32006: error : virStorageFileBackendFileReadHeader:1497 : Failed to open file '/dev/cdrom': No medium found
2015-08-28 16:39:31.569+0000: 31837: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host26/unique_id': No such file or directory
2015-08-28 16:45:45.619+0000: 2483: info : libvirt version: 1.2.18, package: 2 (buildd 2015-08-23-18:38:12 x86-grnet-01)
2015-08-28 16:45:45.619+0000: 2483: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types
2015-08-28 16:45:45.620+0000: 2483: warning : virQEMUCapsInit:1037 : Failed to get host power management capabilities
2015-08-28 16:45:46.963+0000: 2483: error : virStorageBackendFileSystemRefresh:869 : cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-28 16:45:46.963+0000: 2483: error : storageDriverAutostart:203 : Failed to autostart storage pool 'libvirt': cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-28 16:56:17.742+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host7/unique_id': No such file or directory
2015-08-28 17:58:19.436+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host9/unique_id': No such file or directory
2015-08-28 18:21:47.873+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host11/unique_id': No such file or directory
2015-08-28 18:37:33.486+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host13/unique_id': No such file or directory
2015-08-28 19:38:38.129+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host15/unique_id': No such file or directory
2015-08-29 13:59:37.769+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host17/unique_id': No such file or directory
2015-08-29 18:33:40.829+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host19/unique_id': No such file or directory
2015-08-29 21:50:29.229+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host21/unique_id': No such file or directory
2015-08-30 15:13:11.100+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host23/unique_id': No such file or directory
2015-08-30 18:35:26.583+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host25/unique_id': No such file or directory
2015-08-30 18:39:52.380+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host27/unique_id': No such file or directory
2015-08-30 18:44:06.480+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host29/unique_id': No such file or directory
2015-08-30 18:57:57.997+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host31/unique_id': No such file or directory
2015-08-30 19:16:27.325+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host33/unique_id': No such file or directory
2015-08-30 20:03:54.984+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host35/unique_id': No such file or directory
2015-08-30 20:23:44.291+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host37/unique_id': No such file or directory
2015-08-30 22:38:43.544+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host39/unique_id': No such file or directory
2015-08-31 00:29:06.723+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host41/unique_id': No such file or directory
2015-08-31 07:17:06.559+0000: 2410: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host43/unique_id': No such file or directory
2015-08-31 21:31:58.967+0000: 2580: info : libvirt version: 1.2.18, package: 2 (buildd 2015-08-23-18:38:12 x86-grnet-01)
2015-08-31 21:31:58.967+0000: 2580: error : virStorageBackendFileSystemRefresh:869 : cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-31 21:31:58.968+0000: 2580: error : storageDriverAutostart:203 : Failed to autostart storage pool 'libvirt': cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-31 21:34:42.779+0000: 2419: error : qemuBuildCpuModelArgStr:7091 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor Intel
2015-08-31 21:34:55.396+0000: 2415: error : qemuBuildCpuModelArgStr:7091 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor Intel
2015-08-31 21:36:06.304+0000: 2417: error : qemuBuildCpuModelArgStr:7091 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor GenuineIntel
2015-08-31 21:36:20.495+0000: 2416: error : qemuBuildCpuModelArgStr:7091 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor Intel
2015-08-31 21:38:41.464+0000: 5250: info : libvirt version: 1.2.18, package: 2 (buildd 2015-08-23-18:38:12 x86-grnet-01)
2015-08-31 21:38:41.464+0000: 5250: error : virStorageBackendFileSystemRefresh:869 : cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-31 21:38:41.464+0000: 5250: error : storageDriverAutostart:203 : Failed to autostart storage pool 'libvirt': cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-31 21:38:53.993+0000: 5236: error : qemuBuildCpuModelArgStr:7091 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor Intel
2015-08-31 21:46:39.059+0000: 5236: error : qemuBuildCpuModelArgStr:7091 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor Intel
2015-08-31 22:02:46.994+0000: 7360: info : libvirt version: 1.2.19, package: 1 (buildd 2015-08-29-17:51:36 x86-csail-01)
2015-08-31 22:02:46.994+0000: 7360: error : virStorageBackendFileSystemRefresh:869 : cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-31 22:02:46.994+0000: 7360: error : storageDriverAutostart:203 : Failed to autostart storage pool 'libvirt': cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-08-31 22:02:57.749+0000: 7345: error : qemuBuildCpuModelArgStr:7337 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor Intel
2015-08-31 22:02:57.749+0000: 7345: error : virFileDeleteTree:946 : Cannot open dir '/var/lib/libvirt/qemu/domain-win7': No such file or directory
2015-08-31 22:02:57.750+0000: 7345: error : virFileDeleteTree:946 : Cannot open dir '/var/lib/libvirt/qemu/channel/target/domain-win7': No such file or directory
2015-08-31 22:11:22.279+0000: 7345: error : qemuBuildCpuModelArgStr:7337 : unsupported configuration: guest and host CPU are not compatible: host CPU vendor does not match required CPU vendor Intel
2015-08-31 22:11:22.279+0000: 7345: error : virFileDeleteTree:946 : Cannot open dir '/var/lib/libvirt/qemu/domain-win7': No such file or directory
2015-08-31 22:11:22.279+0000: 7345: error : virFileDeleteTree:946 : Cannot open dir '/var/lib/libvirt/qemu/channel/target/domain-win7': No such file or directory
2015-08-31 22:13:45.371+0000: 7343: error : virNetSocketReadWire:1595 : End of file while reading data: Input/output error
2015-08-31 22:15:19.562+0000: 7343: error : virNetSocketReadWire:1595 : End of file while reading data: Input/output error
2015-08-31 22:36:15.194+0000: 7348: warning : qemuDomainObjTaint:2112 : Domain id=3 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-09-01 07:36:49.156+0000: 7343: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host8/unique_id': No such file or directory
2015-09-01 09:05:29.131+0000: 7343: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host10/unique_id': No such file or directory
2015-09-01 09:18:31.948+0000: 7343: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host12/unique_id': No such file or directory
2015-09-01 19:34:48.755+0000: 7343: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host14/unique_id': No such file or directory
2015-09-01 19:44:28.178+0000: 7343: error : virNetSocketReadWire:1595 : End of file while reading data: Input/output error
2015-09-01 21:02:07.456+0000: 7343: error : virFileReadAll:1373 : Failed to open file '/sys/class/scsi_host//host16/unique_id': No such file or directory
2015-09-01 22:19:06.578+0000: 7343: error : qemuMonitorIO:718 : internal error: End of file from monitor
2015-09-01 22:20:42.770+0000: 29417: info : libvirt version: 1.2.16, package: 2 (buildd 2015-06-05-10:39:35 x86-csail-01)
2015-09-01 22:20:42.770+0000: 29417: error : virStorageBackendFileSystemRefresh:854 : cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-09-01 22:20:42.770+0000: 29417: error : storageDriverAutostart:208 : Failed to autostart storage pool 'libvirt': cannot open path '/home/nikolaus/libvirt': No such file or directory
2015-09-01 22:21:51.248+0000: 29407: error : x86ModelFromCPU:902 : internal error: Unknown CPU feature avx512cd
2015-09-01 22:22:52.294+0000: 29408: error : qemuBuildCpuModelArgStr:6972 : unsupported configuration: guest and host CPU are not compatible: Host CPU does not provide required features: adx, rdseed, invpcid, bmi2, smep, avx2, hle, bmi1
2015-09-01 22:24:56.555+0000: 29406: warning : qemuDomainObjTaint:2007 : Domain id=4 name='win7' uuid=9bf73fdd-c5f9-43fd-a21d-1e2dab26abb8 is tainted: cdrom-passthrough
2015-09-01 22:40:33.251+0000: 29405: error : qemuMonitorIO:715 : internal error: End of file from monitor

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