Bug 625902 - [Xen] backport NMI injection for HVM guests
Summary: [Xen] backport NMI injection for HVM guests
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel-xen (Show other bugs)
(Show other bugs)
Version: 5.5
Hardware: All Linux
high
high
Target Milestone: rc
: ---
Assignee: Paolo Bonzini
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Keywords:
Depends On:
Blocks: 514489 624598
TreeView+ depends on / blocked
 
Reported: 2010-08-20 18:28 UTC by Paolo Bonzini
Modified: 2011-01-13 21:12 UTC (History)
11 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 624598
Environment:
Last Closed: 2011-01-13 21:12:24 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
patch series to fix the bug (45.81 KB, patch)
2010-08-30 16:52 UTC, Paolo Bonzini
no flags Details | Diff


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0017 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.6 kernel security and bug fix update 2011-01-13 10:37:42 UTC

Description Paolo Bonzini 2010-08-20 18:28:01 UTC
Windows likes to send NMI IPIs, but Xen's implementation of the IOAPIC and LAPIC do not know how to handle this.

Comment 1 RHEL Product and Program Management 2010-08-27 15:29:39 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 2 Paolo Bonzini 2010-08-30 16:52:38 UTC
Created attachment 441985 [details]
patch series to fix the bug

Comment 7 Jarod Wilson 2010-09-17 14:03:03 UTC
in kernel-2.6.18-222.el5
You can download this test kernel from http://people.redhat.com/jwilson/el5

Detailed testing feedback is always welcomed.

Comment 9 Qixiang Wan 2010-12-23 09:39:16 UTC
tested with host kernel-xen-2.6.18-238.el5, guest kernel-2.6.18-194.el5,
get the following message in guest console after issue 'xm trigger $dom_id nmi' from host:
Uhhuh. NMI received for unknown reason 31 on CPU 0.
Do you have a strange power saving mode enabled?
Dazed and confused, but trying to continue

Message from syslogd@ at Thu Dec 23 17:33:18 2010 ...
tikanga32h kernel: Uhhuh. NMI received for unknown reason 31 on CPU 0.

Message from syslogd@ at Thu Dec 23 17:33:18 2010 ...
tikanga32h kernel: Do you have a strange power saving mode enabled?

Message from syslogd@ at Thu Dec 23 17:33:18 2010 ...
tikanga32h kernel: Dazed and confused, but trying to continue

so the patch is working, change bug to VERIFIED.

Comment 11 errata-xmlrpc 2011-01-13 21:12:24 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2011-0017.html


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