Note: This is a beta release of Red Hat Bugzilla 5.0. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Also email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback here.
Bug 153153 - microcode_ctl update locks machine up
Summary: microcode_ctl update locks machine up
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel-utils
Version: 2
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Dave Jones
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2005-04-01 21:09 UTC by Hrunting Johnson
Modified: 2015-01-04 22:18 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2005-04-01 21:55:06 UTC

Attachments (Terms of Use)

Description Hrunting Johnson 2005-04-01 21:09:44 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2

Description of problem:
I have three Dell 6650s identically configured with identical hardware specs.  On two of them, the microcode_ctl program will lock the machine up, requiring a manual power-cycle.  On the third, it works just fine.  The older version (pre-update) works just fine.  Something in the new update is locking up the machine.

Even when I do this by hand, it will lock up the machine.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. update to 2.4-9.1.131_FC2
2. reboot box

Actual Results:  Box hangs at 'Applying Intel Microcode Update'

Expected Results:  Box should apply the update and continue.

Additional info:

The boxes are all quad 1.5GHz Xeon machines, 1MB of cache (although Linux reports 512KB) with hyperthreading enabled.

Comment 1 Hrunting Johnson 2005-04-01 21:28:24 UTC
Disabling hyperthreading prevents the hangup with the new version.  Enable
hyperthreading and it will always hang.

Comment 2 Hrunting Johnson 2005-04-01 21:55:06 UTC
Grr, I'm off-base.  I thought these boxes had the latest BIOS updates, but I was
wrong.  The latest Dell BIOSes fix the problem.

Note You need to log in before you can comment on or make changes to this bug.