Bug 564427

Summary: xen kernel crash when using GPLPV driver on Windows 2003 guest and physical partition
Product: [openSUSE] openSUSE 11.2 Reporter: Kenneth Cobler <kcobler>
Component: XenAssignee: Jan Beulich <jbeulich>
Status: RESOLVED DUPLICATE QA Contact: E-mail List <qa-bugs>
Severity: Critical    
Priority: P5 - None CC: jdouglas
Version: Final   
Target Milestone: ---   
Hardware: x86-64   
OS: Other   
Whiteboard:
Found By: Community User Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Attachments: log file

Description Kenneth Cobler 2009-12-14 15:12:05 UTC 
User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091103 SUSE/3.5.5-1.1.2 Firefox/3.5.5

I have an odd problem, but, easy to replicate.

Xen 3.4 + GPLPV + Windows 2003 (x32) guest.  I've tried this on both GPLPV
0.10.0.138 and 0.10.0.142 drivers.

If the hard drive is an image file using the file: directive in the xen config file, Windows 2003 guest boots and runs great with the GPLPV drivers.

If the hard drive is a physical drive or partition using the phy: directive in the xen config file, Windows 2003 guest boots and runs fine with the QEMU drivers.

If the hard drive is a physical drive or partition using the phy: directive in the xen config gile, Windows 2003 guest boots and runs with the GPLPV drivers for about 3-5 minutes. At the time, the entire machine locks up and I have to power cycle machine to recover (no mouse, or keyboard response).

I even took the crashed Windows 2003 partition, dd copied to a file,
setup xen to point to the image file using the file: directive.  The Windows
2003 guest came up with the GPLPV drivers and ran great.

Reproducible: Always

Steps to Reproduce:
1. Run Xen
2. Load Windows 2003 guest as phy: device.
3. Load GPLPV 0.10.0.142 drivers on Windows guest.
4. Reboot Windows guest.
5. Do some disk activities in Windows 2003 (like error checking or defragment).
6. After 3-5 minutes, the Xen and entire computer locks up.
Actual Results:  
The computer locked up.

Expected Results:  
The computer should run without locking up.
Comment 1 Jan Beulich 2009-12-14 15:41:14 UTC 
Does the same also happen with file:/ backed disks?

Also, we'll need the full kernel log in order to determine whether this is simply a duplicate of several other bugs that got reported earlier.
Comment 2 Kenneth Cobler 2009-12-14 19:21:19 UTC 
Created attachment 332511 [details]
log file
Comment 3 Kenneth Cobler 2009-12-14 19:22:16 UTC 
This does not happen when I use file: images stored on the Linux drive.
Comment 4 Jan Beulich 2009-12-15 10:45:26 UTC 
(In reply to comment #2)
> Created an attachment (id=332511) [details]
> log file

This doesn't help, as it doesn't include any indication on the reasons for the crash. But this

(In reply to comment #3)
> This does not happen when I use file: images stored on the Linux drive.

makes it rather certain that this is a duplicate.

*** This bug has been marked as a duplicate of bug 553690 ***