RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 893344 - "info qtree" output for qxl-vga does not match between rhel6.0 host and rhel6.4 host with -M rhel6.0.0
Summary: "info qtree" output for qxl-vga does not match between rhel6.0 host and rhel6...
Keywords:
Status: CLOSED WORKSFORME
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm
Version: 6.4
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Gerd Hoffmann
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-01-09 07:31 UTC by Qunfang Zhang
Modified: 2013-07-29 22:56 UTC (History)
12 users (show)

Fixed In Version: qemu-kvm-0.12.1.2-2.362.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-07-25 09:29:57 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Guest screenshot for the failure (17.65 KB, image/png)
2013-06-25 06:29 UTC, Qunfang Zhang 		no flags Details
isa serial log for the guest (20.25 KB, text/plain)
2013-06-25 06:30 UTC, Qunfang Zhang 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:1553 0 normal SHIPPED_LIVE Important: qemu-kvm security, bug fix, and enhancement update 2013-11-20 21:40:29 UTC

Description Qunfang Zhang 2013-01-09 07:31:36 UTC 
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:
Comment 2 Gerd Hoffmann 2013-04-04 10:18:18 UTC 
patch posted.
Comment 8 Qunfang Zhang 2013-06-25 06:28:22 UTC 
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.
Comment 9 Qunfang Zhang 2013-06-25 06:29:36 UTC 
Created attachment 764931 [details]
Guest screenshot for the failure
Comment 10 Qunfang Zhang 2013-06-25 06:30:10 UTC 
Created attachment 764932 [details]
isa serial log for the guest
Comment 11 Qunfang Zhang 2013-06-25 06:32:01 UTC 
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
Comment 12 Gerd Hoffmann 2013-06-25 10:08:30 UTC 
Could be the xorg driver can't handle rev-1 qxl cards.
Alon?
Comment 14 Alon Levy 2013-06-26 11:42:59 UTC 
(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 :/
Comment 16 Qunfang Zhang 2013-06-28 03:01:53 UTC 
Re-assign the bug first to wait for a solution about this bug.
Comment 17 Gerd Hoffmann 2013-07-25 09:29:57 UTC 
Testing failed due to guest bug, closing as fixed.
Note You need to log in before you can comment on or make changes to this bug.