[ovirt-users] [Users] 2 virtual monitors for Fedora guest

Wed Apr 9 16:05:55 UTC 2014

Hi,

René met me in person and we got to root cause:
when KMS is enabled for qxl (qxl kernel module is loaded), then bug
https://bugzilla.redhat.com/show_bug.cgi?id=1066422 occurs - you're
without all agent features (clipboard sharing, arbitrary
resolution, ...).
When the qxl driver runs in UMS mode (with qxl blacklisted - add
module.blacklist=qxl to kernel CLI on reboot), the agent won't crash
anymore but it still won't be able to do resolution changes or monitor
enabling for you

The common bug is in qemu:
https://bugzilla.redhat.com/show_bug.cgi?id=1075139

Gianluca, could you try f20 hosts?

What should work in all cases are rhel6 guests on rhel6 hosts...

David

On Út, 2014-04-08 at 21:25 +0200, Gianluca Cecchi wrote:
> Some prelimianry tests at my side.
> 
> oVirt 3.4 on fedora 19 AIO.
> Datacenter and cluster configured as 3.4 level
> Some packages on it
> libvirt-1.1.3.2-1.fc19.x86_64
> qemu-kvm-1.6.1-2.fc19.x86_64
> vdsm-4.14.6-0.fc19.x86_64
> spice-server-0.12.4-3.fc19.x86_64
> 
> guest is an updated Fedora 19 system configured based on blank
> template and OS=Linux
> and
> xorg-x11-drv-qxl-0.1.1-3.fc19.x86_64
> spice-vdagent-0.14.0-5.fc19.x86_64
> 
> Client is an updated Fedora 20 box with virt-viewer-0.6.0-1.fc20.x86_64
> 
> If I select the "Single PCI" checkbox in console options of guest and
> connect from the Fedora 20 client I don't see at all an option in
> remote-viewer to open a second display and no new display detected in
> guest.
> And lspci on guest indeed gives only one video controller.
> 
> BTW: what is this option for, apart the meaning?
> 
> If I deselect the "Single PCI" checkbox I get the "Display 2" option
> in remote-viewer but it is greyed out.
> No new monitor in "detect displays" of guest.
> 
> In this last situation I have on host this qem-kvm command line:
> qemu     16664     1 48 21:04 ?        00:02:42
> /usr/bin/qemu-system-x86_64 -machine accel=kvm -name f19 -S -machine
> pc-1.0,accel=kvm,usb=off -cpu Opteron_G3 -m 2048 -realtime mlock=off
> -smp 1,maxcpus=160,sockets=160,cores=1,threads=1 -uuid
> 55d8b95b-f420-4208-a2fb-5f370d05f5d8 -smbios
> type=1,manufacturer=oVirt,product=oVirt
> Node,version=19-8,serial=E0E1001E-8C00-002A-6F9A-90E6BAC9F1E1,uuid=55d8b95b-f420-4208-a2fb-5f370d05f5d8
> -no-user-config -nodefaults -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/f19.monitor,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc
> base=2014-04-08T19:04:45,driftfix=slew -no-shutdown -device
> piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device
> virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -device
> usb-ccid,id=ccid0 -drive
> if=none,id=drive-ide0-1-0,readonly=on,format=raw,serial= -device
> ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive
> file=/rhev/data-center/mnt/_data_DATA2/b24b94c7-5935-4940-9152-36ecd370ba7c/images/5e99a818-9fd1-47bb-99dc-50bd25374c2f/a2baa1e5-569f-4081-97a7-10ec2a20daab,if=none,id=drive-virtio-disk0,format=raw,serial=5e99a818-9fd1-47bb-99dc-50bd25374c2f,cache=none,werror=stop,rerror=stop,aio=threads
> -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
> -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=29 -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=00:1a:4a:a8:01:55,bus=pci.0,addr=0x3
> -chardev spicevmc,id=charsmartcard0,name=smartcard -device
> ccid-card-passthru,chardev=charsmartcard0,id=smartcard0,bus=ccid0.0
> -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/55d8b95b-f420-4208-a2fb-5f370d05f5d8.com.redhat.rhevm.vdsm,server,nowait
> -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm
> -chardev socket,id=charchannel1,path=/var/lib/libvirt/qemu/channels/55d8b95b-f420-4208-a2fb-5f370d05f5d8.org.qemu.guest_agent.0,server,nowait
> -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0
> -chardev spicevmc,id=charchannel2,name=vdagent -device
> virtserialport,bus=virtio-serial0.0,nr=3,chardev=charchannel2,id=channel2,name=com.redhat.spice.0
> -spice tls-port=5901,addr=0,x509-dir=/etc/pki/vdsm/libvirt-spice,tls-channel=main,tls-channel=display,tls-channel=inputs,tls-channel=cursor,tls-channel=playback,tls-channel=record,tls-channel=smartcard,tls-channel=usbredir,seamless-migration=on
> -k en-us -device
> qxl-vga,id=video0,ram_size=67108864,vram_size=33554432,bus=pci.0,addr=0x2
> -device qxl,id=video1,ram_size=67108864,vram_size=33554432,bus=pci.0,addr=0x8
> -device AC97,id=sound0,bus=pci.0,addr=0x4 -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7
> 
> On guest:
> [root at localhost ~]# lspci
> 00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
> 00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
> 00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
> 00:01.2 USB controller: Intel Corporation 82371SB PIIX3 USB
> [Natoma/Triton II] (rev 01)
> 00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
> 00:02.0 VGA compatible controller: Red Hat, Inc. QXL paravirtual
> graphic card (rev 03)
> 00:03.0 Ethernet controller: Red Hat, Inc Virtio network device
> 00:04.0 Multimedia audio controller: Intel Corporation 82801AA AC'97
> Audio Controller (rev 01)
> 00:05.0 Communication controller: Red Hat, Inc Virtio console
> 00:06.0 SCSI storage controller: Red Hat, Inc Virtio block device
> 00:07.0 RAM memory: Red Hat, Inc Virtio memory balloon
> 00:08.0 Display controller: Red Hat, Inc. QXL paravirtual graphic card (rev 03)
> 
> See here Xorg.0.log generated on guest:
> https://drive.google.com/file/d/0BwoPbcrMv8mvTm9VbE53ZmVKcVk/edit?usp=sharing
> 
> In particular I see in it many:
> [    64.234] (II) qxl(0): qxl_xf86crtc_resize: Placeholder resize 1024x768
> [    87.280] qxl_surface_create: Bad bpp: 1 (1)
> [    87.280] qxl_surface_create: Bad bpp: 1 (1)
> [    87.949] qxl_surface_create: Bad bpp: 1 (1)
> [   110.469] qxl_surface_create: Bad bpp: 1 (1)
> [   110.478] qxl_surface_create: Bad bpp: 1 (1)
> [   146.096] - 0th attempt
> [   146.096] - OOM at 962 511 24 (= 1474746 bytes)
> [   146.096] Cache contents:  null null null null null null null null
> null null null null null null null null null null null null null null
> null null null null null null null null null null null null null null
> null null null null null null null null null null null null null null
> 1008  997 1007 1005 1018 1003 1009 1011 1001 1012 1019 1016 1006 1013
>    total: 14
> [   146.107] - 1th attempt
> [   146.107] - OOM at 962 511 24 (= 1474746 bytes)
> 
> Gianluca
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