Bug 567306

Summary: xen-system crashes when domU run's heavy io
Product: [openSUSE] openSUSE 11.2 Reporter: rob steiger <rob>
Component: XenAssignee: Jason Douglas <jdouglas>
Status: RESOLVED DUPLICATE QA Contact: E-mail List <qa-bugs>
Severity: Critical    
Priority: P5 - None CC: jbeulich
Version: Final   
Target Milestone: ---   
Hardware: x86-64   
OS: openSUSE 11.2   
Whiteboard:
Found By: --- Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Attachments: xm dmesg server sea
xend.log server sea
messages server sea

Description rob steiger 2009-12-25 19:18:18 UTC
User-Agent:       Opera/9.80 (Windows NT 5.1; U; de) Presto/2.2.15 Version/10.10

hello

i built a system with opensuse 11.2. had problems to bring domU's up, but found help here - thanks that for!

now, if i stress the domU with just a "tar -xcvf file.tar (file.tar has 50G) the system hangs - it's restartable and i can reproduce the error...

to be shure thats not a hw-problem, i did the same in domain0, work fine, no problem.

i used files as space for the disks in domU. then i switched to lvm2-lv's problem persits.

i have seen bugs 553690, 559047 and tried mem=4G and mem=3G (as the system only has 3gb ram), both both didn't help.

so my question:
is there a way to make the xen-system stable without to patch the xen kernel?
i'm not quit familar with building a patched xen-kernel (the xen.gz).
do i have to wait for a new xen-kernel?

Reproducible: Always

Steps to Reproduce:
1. build opensuse 11.2 system
2. install xen-hypervisor, reboot with xen
3. install domU (goes fine with my system)
4. bring domU under stress with heavy io (expand a tar or so).
Actual Results:  
system crashes, neither domain-0 or domu brigs a response (does nor respond to ping)

Expected Results:  
stable sytem
Comment 1 James Song 2009-12-29 07:03:10 UTC
Could you attach the logfile of xen(/var/log/xen/xend.log, xm dmesg) and dom0'message?
thanks
Comment 2 rob steiger 2009-12-29 18:48:10 UTC
Created attachment 334510 [details]
xm dmesg server sea
Comment 3 rob steiger 2009-12-29 18:53:41 UTC
Created attachment 334511 [details]
xend.log server sea
Comment 4 rob steiger 2009-12-29 18:59:09 UTC
ok here 2 files, 3rd will fellow

regards

rob
Comment 5 rob steiger 2009-12-29 19:01:34 UTC
Created attachment 334512 [details]
messages server sea
Comment 6 rob steiger 2009-12-29 19:09:40 UTC
this server has been resetup - same hw, same software...
but still crashes under io/load
Comment 7 Jan Beulich 2010-01-04 15:53:56 UTC
An updated kernel was released just today afaict.

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