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Bug 768981

Summary: guest BSOD when boot a win7-64 guest with 232 virtio disks(enable multifunction=on)
Product: Red Hat Enterprise Linux 6 Reporter: Amos Kong <akong>
Component: virtio-winAssignee: Vadim Rozenfeld <vrozenfe>
Status: CLOSED WONTFIX QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.2CC: acathrow, ailan, bcao, bsarathy, dawu, juzhang, rhod, xfu
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-06-19 08:31:50 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
win7-32-bug768981.png none

Description Amos Kong 2011-12-19 15:33:24 UTC 
Description of problem:
reinstall a new  win7 guest, only the first time can boot successful with 232
virtio disks, after repeat boot guest, it is always BSOD. 

Version-Release number of selected component (if applicable):
# rpm -qa|grep qemu
qemu-kvm-0.12.1.2-2.209.el6.x86_64
# uname -r
2.6.32-214.el6.x86_64
virtio-win driver: virtio-win-1.4.0


How reproducible:
90%

Steps to Reproduce:
1.command line is attached in bz
(https://bugzilla.redhat.com/show_bug.cgi?id=753692)

Actual results:
1.guest BSOD, (qemu doesn't output error message)
2.a snapshot of BSOD is attached in bz 
(https://bugzilla.redhat.com/show_bug.cgi?id=753692)

Expected results:
guest boot successful

Additional info:
this problem could not be reproduced with old virtio-win driver.
The BSOD occurs before system booting up, no mem-dump.
Comment 1 dawu 2011-12-22 06:11:54 UTC 
Tested with the latest build of "virtio-win-prewhql-0.1-20", this issue also reproduced with the same BSOD happened.
Comment 2 Vadim Rozenfeld 2012-01-04 22:44:55 UTC 
Hi guys,

Could you please reproduce this problem on 32-bit platform, 
and then upload the relevant dump file?

Thank you,
Vadim.
Comment 3 dawu 2012-01-05 08:26:10 UTC 
Created attachment 550846 [details]
win7-32-bug768981.png
Comment 5 Vadim Rozenfeld 2012-01-23 10:17:14 UTC 
Hi Dawn,
Could please recheck with drivers from 
http://download.devel.redhat.com/brewroot/packages/virtio-win-prewhql/0.1/21/win/virtio-win-prewhql-0.1.zip ?

Thank you,
Vadim.
Comment 6 dawu 2012-01-30 07:32:18 UTC 
(In reply to comment #5)
> Hi Dawn,
> Could please recheck with drivers from 
> http://download.devel.redhat.com/brewroot/packages/virtio-win-prewhql/0.1/21/win/virtio-win-prewhql-0.1.zip
> ?
> 
> Thank you,
> Vadim.

Hi Vadim,

I have tried this issue with the latest drivers on win7-64,the same issue still reproduced. 

Best Regards,
Dawn
Comment 7 Ronen Hod 2012-06-19 08:31:50 UTC 
Closing, since our support for large number of disks is either scsi or PCI bridge.