Bug 533730 - F12 kernel Xen PV domU guest bugfixes, including fix crash on Intel Nehalem CPUs
Summary: F12 kernel Xen PV domU guest bugfixes, including fix crash on Intel Nehalem CPUs
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 12
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2009-11-08 19:56 UTC by Pasi Karkkainen
Modified: 2010-12-04 03:26 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-12-04 03:26:40 UTC
Type: ---

Attachments (Terms of Use)

Description Pasi Karkkainen 2009-11-08 19:56:25 UTC
Description of problem:
upstream Linux kernel has a bug causing it to crash as a Xen PV guest on Intel Nehalem CPUs, because of improper extended topology cpuid masking. Linux will have a fix for this bug. This bugzilla was opened to make sure F12 GA kernel contains these fixes.

Version-Release number of selected component (if applicable):
upstream, fedora 12 rawhide

How reproducible:

Steps to Reproduce:
1. boot F12 Xen PV domU guest on Intel Nehalem CPU
2. guest crashes

Actual results:
guest crashes

Expected results:
guest boots and works normally

Additional info: stable patches review:

[60/99] xen/hvc: make sure console output is always emitted, with explicit polling:

[61/99] xen: mask extended topology info in cpuid:

Pull request from Jeremy:

Comment 1 Chuck Ebbert 2009-11-17 19:43:00 UTC
The final kernel was built on Nov 8th and this fix was not in it.

Comment 2 Bug Zapper 2010-11-04 06:39:55 UTC
This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '12'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 12's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 12 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
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The process we are following is described here: 

Comment 3 Bug Zapper 2010-12-04 03:26:40 UTC
Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

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