Red Hat Bugzilla – Bug 893344
"info qtree" output for qxl-vga does not match between rhel6.0 host and rhel6.4 host with -M rhel6.0.0
Last modified: 2013-07-29 18:56:01 EDT
Description of problem: Boot guest with spice+qxl on rhel6.0 host and check the "info qtree" output, it's different with the output on rhel6.4 host with -M rhel6.0.0. Especially for the 'revision' property. On rhel6.0 host: /usr/libexec/qemu-kvm -M rhel6.0.0 -spice port=5930,disable-ticketing -vga qxl (can not boot with vnc+qxl, segment fault.) dev: qxl, id "" dev-prop: ram_size = 67108864 bus-prop: addr = 02.0 bus-prop: romfile = "vgabios-qxl.bin" bus-prop: rombar = 1 class VGA controller, addr 20:02.0, pci id 1b36:0100 (sub 1af4:1100) bar 0: mem at 0xf0000000 [0xf3ffffff] bar 1: mem at 0xf4000000 [0xf4000fff] bar 2: mem at 0xf4002000 [0xf4003fff] bar 3: i/o at 0xc010 [0xc017] bar 6: mem at 0xffffffffffffffff [0xfffe] On rhel6.4 host with -M rhel6.0.0: /usr/libexec/qemu-kvm ...... -M rhel6.0.0 -spice port=5930,disable-ticketing -vga qxl dev: qxl-vga, id "" dev-prop: ram_size = 67108864 dev-prop: vram_size = 67108864 dev-prop: revision = 2 dev-prop: debug = 0 dev-prop: guestdebug = 0 dev-prop: cmdlog = 0 bus-prop: addr = 02.0 bus-prop: romfile = "vgabios-qxl.bin" bus-prop: rombar = 1 bus-prop: multifunction = off class VGA controller, addr 00:02.0, pci id 1b36:0100 (sub 1af4:1100) bar 0: mem at 0xf0000000 [0xf3ffffff] bar 1: mem at 0xffffffffffffffff [0x3fffffe] bar 2: mem at 0xf4000000 [0xf4003fff] bar 3: i/o at 0xc010 [0xc01f] bar 6: mem at 0xffffffffffffffff [0xfffe] Version-Release number of selected component (if applicable): RHEL6.4 host: kernel-2.6.32-348.el6.x86_64 qemu-kvm-0.12.1.2-2.348.el6.x86_64 How reproducible: Always Steps to Reproduce: 1. Boot guest with spice and qxl on rhel6.0 host and check the "(qemu) info qtree" output for qxl part. 2. Repeat step 1 on rhel6.4 host with -M rhel6.0.0 3. Compare the output for qxl part. Actual results: "info qtree" output for qxl-vga does not match, pls check bug description above. Expected results: "info qtree" output for qxl-vga should match. Additional info:
patch posted.
Verified the issue on qemu-kvm-rhev-0.12.1.2-2.376.el6.x86_64. Check the qxl-vga info in "info qtree" output, the "vram_size" changes to 4096 and the revision changes to "1". dev: qxl-vga, id "" dev-prop: ram_size = 67108864 dev-prop: vram_size = 4096 dev-prop: revision = 1 dev-prop: debug = 0 dev-prop: guestdebug = 0 dev-prop: cmdlog = 0 bus-prop: addr = 02.0 bus-prop: romfile = "vgabios-qxl.bin" bus-prop: rombar = 1 bus-prop: multifunction = off class VGA controller, addr 20:02.0, pci id 1b36:0100 (sub 1af4:1100) bar 0: mem at 0xf0000000 [0xf3ffffff] bar 1: mem at 0xf4000000 [0xf4000fff] bar 2: mem at 0xf4002000 [0xf4003fff] bar 3: i/o at 0xc010 [0xc017] bar 6: mem at 0xffffffffffffffff [0xfffe] But boot a rhel6.4-64 guest, guest fails to start up the X windows. Can login guest via isa-serial console or ssh, but can not display the desktop correctly. Isa serial log and guest screenshot will be uploaded. Hi, Gerd Could you help confirm the following stuff: (1) For this bug, the change is: the "vram_size" changes to 4096 and the revision changes to "1". Is it correct? And other properties do not change. (2) Guest failed to boot up X Window after fix, does the patch have something wrong? Downgrade qemu-kvm to -355, guest X Window can display correctly.
Created attachment 764931 [details] Guest screenshot for the failure
Created attachment 764932 [details] isa serial log for the guest
Command line: /usr/libexec/qemu-kvm -cpu SandyBridge -M rhel6.0.0 -enable-kvm -m 4096 -smp 2,sockets=2,cores=1,threads=1 -name rhel6.4-64 -uuid 9a0e67ec-f286-d8e7-0548-0c1c9ec93009 -nodefconfig -nodefaults -monitor stdio -rtc base=utc,clock=host,driftfix=slew -no-kvm-pit-reinjection -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=0x7 -drive file=/home/RHEL-Server-6.4-64-virtio.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,id=hostnet0,vhost=on -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:d5:51:8a,bus=pci.0,addr=0x3 -chardev socket,id=charserial0,path=/tmp/isa-serial,server,nowait -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -spice port=5930,disable-ticketing -vga qxl -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -qmp tcp:0:5555,server,nowait
Could be the xorg driver can't handle rev-1 qxl cards. Alon?
(In reply to Gerd Hoffmann from comment #12) > Could be the xorg driver can't handle rev-1 qxl cards. > Alon? Fedora 18's xorg segfaults when revision is 1. So I'd say no :/
Re-assign the bug first to wait for a solution about this bug.
Testing failed due to guest bug, closing as fixed.