Red Hat Bugzilla – Bug 576487
KVM: e1000 win driver causes KVM process stuck at 100 percent CPU during Windows2008x64 "Sys prep" installation.
Last modified: 2013-01-09 17:22:48 EST
Description of problem:
I'm running few Guests with Different OS ( WindowsXPx32 , Windows2003x32 , Windows2003x64 , Windows2008x32 , Windows2008x64 , Windows2008x64-R2 ) from "Sys prep" sealed templates.
Sometimes Windows2008x64 or Windows2008x64-R2 Guests are being stuck after reboot and KVM process consumes 100 percent CPU usage.
Avi Kivity ( email@example.com ) saw the problem and he noticed that it's an interrupts related issue , please consult him for the technical details.
Version-Release number of selected component (if applicable):
Linux red-vdse.qa.lab.tlv.redhat.com 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
cpuModel = Intel(R) Xeon(R) CPU 5150 @ 2.66GHz
cpuSockets = 1
cpuSpeed = 2659.997
Steps to Reproduce:
Avi claims it's the rtc that does massive reinjections
added to list of bugs rhev depends on
What are the steps to reproduce. What is ""Sys prep" sealed template"?
In order to reproduce this issue try to run few VM's from a Windows2008x64 "Sys prep" sealed template on the same host ( usually happens with NFS slow storage )
If you want to read about "Sysprep" technology:
If you need any help with reproducing this issue, please contact me.
(In reply to comment #5)
> In order to reproduce this issue try to run few VM's from a Windows2008x64 "Sys
> prep" sealed template on the same host ( usually happens with NFS slow storage
I have no idea what is ""Sys prep" sealed template".
> If you want to read about "Sysprep" technology:
No I don't
> If you need any help with reproducing this issue, please contact me.
That is what I am doing! Please explain it here in steps like
1. install Windows2008x64 by running this command
2. do sys prep by running this command
1.Install Windows 2008x64 Guest by running VM with the appropriate ISO attached and boot from CD.
2.Answer all installation questions: Computer name , domain name , c.d key e.t.c
3. Seal your VM ( for detailed documentation: http://10.35.255.11/qumrawiki/QA/sysprep ).
4. Stop the VM.
5. Create template from the VM snapshot.
6. Run Guests from the sealed template with floppy attached which includes the answer files ( attached )
I think that it would be much easier if you will come over and I'll show you how to it.
Created attachment 406475 [details]
Windows 2008x64 "Sysprep" answer file
Windows 2008x64 "Sysprep" answer file.
You'll need to edit variables like CD key , domain name , e.t.c ( marked with $ )
(In reply to comment #7)
> Detailed explanations:
> 1.Install Windows 2008x64 Guest by running VM with the appropriate ISO attached
> and boot from CD.
Don't you use unattended install? Can you provide command line parameters you are using? I need to know what are devices you are using.
> 2.Answer all installation questions: Computer name , domain name , c.d key
> 3. Seal your VM ( for detailed documentation:
> http://10.35.255.11/qumrawiki/QA/sysprep ).
> 4. Stop the VM.
> 5. Create template from the VM snapshot.
> 6. Run Guests from the sealed template with floppy attached which includes the
> answer files ( attached )
> I think that it would be much easier if you will come over and I'll show you
> how to it.
I will do ASAP, but we need those details in BZ anyway. My memory is short. Not even enough to remember command line you are using.
## qemu-kvm command line
/usr/libexec/qemu-kvm -no-hpet -usb -rtc-td-hack -startdate 2010-4-14T15:19:19 -name gold -smp 1,cores=1 -k en-us -m 2048 -boot c -net nic,vlan=1,macaddr=00:1a:4a:16:95:6a,model=e1000 -net tap,vlan=1,ifname=e1000_10_1,script=no -drive file=/rhev/data-center/00000000-0000-0000-0000-000000000002/00000000-0000-0000-0000-000000000011/images/3939ea71-7acc-4a48-a594-7fbbc8961aa6/45f8d838-499e-4331-af9c-b36f817b888d,media=disk,if=ide,cache=off,index=0,serial=48-a594-7fbbc8961aa6,boot=off,format=qcow2,werror=stop -drive file=/rhev/data-center/00000000-0000-0000-0000-000000000002/00000000-0000-0000-0000-000000000012/images/11111111-1111-1111-1111-111111111111/RHEV-toolsSetup_2.2_45247.iso,media=cdrom,index=2,if=ide -fda fat:floppy:/tmp/f72cebeb-ef28-494c-aa32-f3687f34642aSYkYmc.floppy -pidfile /var/vdsm/f72cebeb-ef28-494c-aa32-f3687f34642a.pid -soundhw ac97 -spice sslpassword=,sslciphersuite=DEFAULT,sslcert=/var/vdsm/ts/certs/vdsmcert.pem,sslkey=/var/vdsm/ts/keys/vdsmkey.pem,ssldhfile=/var/vdsm/ts/keys/dh.pem,sslcafile=/var/vdsm/ts/certs/cacert.pem,host=0,secure-channels=main+inputs,ic=on,sport=5890,port=5910 -qxl 1 -cpu qemu64,+sse2 -M rhel5.5.0 -notify all -balloon none -smbios type=1,manufacturer=Red Hat,product=RHEL,version=5Server-126.96.36.199,serial=6F21AF0F-7D26-3BFE-961E-5338E61BC2D0_00:10:18:24:46:3b,uuid=f72cebeb-ef28-494c-aa32-f3687f34642a -vmchannel di:0200,unix:/var/vdsm/f72cebeb-ef28-494c-aa32-f3687f34642a.guest.socket,server -monitor unix:/var/vdsm/f72cebeb-ef28-494c-aa32-f3687f34642a.monitor.socket,server
Bug should be reproduced without e1000 nic. This nic model is not supported and I suspect it causes the hang.
e1000 is not supported for windows guests.