Bug 239249 – XEN DOM0 Kernel does not detect multiple processors

Bug 239249 - XEN DOM0 Kernel does not detect multiple processors

Summary:	XEN DOM0 Kernel does not detect multiple processors

Status:	CLOSED NEXTRELEASE

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	kernel-xen (Show other bugs)
Sub Component:
Version:	rawhide
Hardware:	x86_64 Linux

Priority	medium Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Xen Maintainance List
QA Contact:	Brian Brock
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2007-05-06 20:35 EDT by Sam Bingner
Modified:	2007-11-30 17:12 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2007-05-07 12:01:19 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
messages from xen bootup (75.21 KB, text/plain) 2007-05-06 20:35 EDT, Sam Bingner	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

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Description Sam Bingner 2007-05-06 20:35:07 EDT

Description of problem:
XEN DOM0 kernel does not detect all 4 processors in my system.  If I run "xm
vcpu-set 0 4" it causes a crash and a system freeze.

Version-Release number of selected component (if applicable): 2.6.20-2925.5.fc7xen


How reproducible:
1. Boot 2.6.20-2925.5.fc7xen with xen on a multi-processor system
2. To duplicate crash, run "xm vcpu-set 0 2"
 
Actual results:
Kernel sees a single processor

Expected results:
Kernel sees four processors (or however many are present)

Additional info: DMESG and crash message from attempted "xm vcpu-set 0 4" attached

Comment 1 Sam Bingner 2007-05-06 20:35:07 EDT

Created attachment 154235 [details]
messages from xen bootup

Comment 2 Chris Wright 2007-05-07 12:01:19 EDT

This has been fixed in BZ 238015 (there are a couple patches in that BZ if
you are eager to test it out), just hasn't made it into latest rawhide
yet.  I hadn't tested vcpu-set when I fixed SMP, but I'm sure it's from
the same source issue...Yes, just tested and vcpu-set works as expected
in a fixed kernel.

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