Bug 473276 - Kernel panic - not syncing: IO-APIC + timer doesn't work!
Summary: Kernel panic - not syncing: IO-APIC + timer doesn't work!
Keywords:
Status: CLOSED WORKSFORME
Alias: None
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: realtime-kernel
Version: 1.1
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Red Hat Real Time Maintenance
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-11-27 13:59 UTC by Eugene Teo (Security Response)
Modified: 2010-10-21 14:35 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-10-21 14:35:39 UTC
Target Upstream Version:
Embargoed:

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Description Eugene Teo (Security Response) 2008-11-27 13:59:20 UTC 
Description of problem:
I encountered this problem when I was testing my backported patch for bug 473259. It can be triggered upon rebooting the kvm guest.

Version-Release number of selected component (if applicable):
kernel-rt-2.6.24.7-95.el5.i686.rpm

How reproducible:
Always.

Steps to Reproduce:
1. init 6
  
Actual results:
[root@bah ~]# virsh console 139
[...]
Please stand by while rebooting the system...
md: stopping all md devices.
Restarting system.
..MP-BIOS bug: 8254 timer not connected to IO-APIC
Kernel panic - not syncing: IO-APIC + timer doesn't work!  Boot with apic=debug and send a report.  Then try booting with the 'noapic' option

Expected results:
No kernel panic.
Comment 1 Luis Claudio R. Goncalves 2009-07-07 13:23:53 UTC 
Are you able to reproduce this bug:

1) With a newer kernel (say 2.6.24.7-124)?
2) Are you able to reproduce this issue booting the kernel on a real machine (not a VM)?
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