Bug 183221

Summary: kernel-xen-hypervisor hangs on x86_64
Product: [Fedora] Fedora Reporter: Aleksander Adamowski <bugs-redhat>
Component: kernel-xenAssignee: Juan Quintela <quintela>
Status: CLOSED CURRENTRELEASE QA Contact: Brian Brock <bbrock>
Severity: high Docs Contact:
Priority: medium    
Version: rawhideCC: bstein
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: FC5 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-03-30 04:44:07 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:
Bug Depends On:    
Bug Blocks: 185595    
Attachments:
Description Flags
dmesg file from the affected machine
none
dmesg from the ordinary SMP kernel none

Description Aleksander Adamowski 2006-02-27 16:30:17 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20060202 Fedora/1.7.12-1.5.2

Description of problem:
I'm trying to run the latest hypervisor kernel for x86_64, on a HP Proliant DL385 2 x Dual Core Opteron server.

The system boots up, but there are some suspicious warnings logged:

Feb 27 17:15:14 domzero2 kernel: Could not allocate 8 bytes percpu data

Then, the system runs for a couple minutes/hours, after which it hangs and stops reacting to any input. It doesn't react to CTRL-ALT-DELETE. There are no messages left in the logs (I'm logging everything to a separate syslog host). There's no extra output on the VGA console when the system hangs.

If you could give me a hint how to perform some more detailed debugging, I'll happily try it out. Currently, there are no 

I could also reproduce the problem with an earlier hypervisor kernel for x86_64, 2.6.15-1.1955_FC5hypervisor.



Version-Release number of selected component (if applicable):
kernel-xen-hypervisor-2.6.15-1.1977_FC5.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Install kernel-xen-hypervisor-2.6.15-1.1977_FC5.x86_64.rpm
2. Change to this kernel in grub.conf
3. Reboot
4. Let the machine work for a couple minutes/hours.

  

Additional info:
Comment 1 Aleksander Adamowski 2006-02-27 16:32:05 UTC 
Created attachment 125324 [details]
dmesg file from the affected machine

The dmesg has been generated by the 2.6.15-1.1977_FC5hypervisor kernel.
Comment 2 Aleksander Adamowski 2006-02-27 16:35:39 UTC 
Created attachment 125325 [details]
dmesg from the ordinary SMP kernel

For coparison, I'm attaching a dmesg file that has been generated by ordinary
SMP kernel, 2.6.15-1.1955_FC5.
Comment 3 Aleksander Adamowski 2006-03-08 11:08:22 UTC 
There's another problem with the latest Xen kernel on x86_64
(2.6.15-1.2025_FC5xen0) - a kernel crash, I've opened bug 184378 covering it.
Comment 4 Aleksander Adamowski 2006-03-14 09:52:24 UTC 
It seems that the later kernels have this problem fixed. I'm currently running
2.6.15-1.2038_FC5xen0 and have accumulated 3 days uptime without a hang.
Comment 5 Brian Stein 2006-03-30 04:44:07 UTC 
Closing per comment above; Reopen if required.