Bug 155017 - Unisys' x86_64 ES7000 loses legacy devices during boot when using latest ES7000 platform code
Unisys' x86_64 ES7000 loses legacy devices during boot when using latest ES70...
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
i686 Linux
medium Severity high
: ---
: ---
Assigned To: Brian Maly
Brian Brock
Depends On:
Blocks: 158812 167153 168429
  Show dependency treegraph
Reported: 2005-04-15 14:11 EDT by Jason Davis
Modified: 2007-11-30 17:07 EST (History)
3 users (show)

See Also:
Fixed In Version: RHSA-2006-0132
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2006-03-07 13:53:29 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
ES7000 Legacy Mappings Update (1.50 KB, patch)
2005-04-15 14:17 EDT, Jason Davis
no flags Details | Diff
ES7000 Legacy Mappings Update for U2 Kernel (1.45 KB, patch)
2005-08-30 22:10 EDT, Jason Davis
no flags Details | Diff

  None (edit)
Description Jason Davis 2005-04-15 14:11:59 EDT
Description of problem:
During the boot sequence on the x86_64 ES7000 machine, legacy interrupts are not
configured correctly. As a result, legacy devices (ie: IDE drives, IDE CDROM,
keyboard, mouse, etc) are not usable because their legacy mappings are not

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

How reproducible:

Steps to Reproduce:
1. Build a kernel image using the latest ES7000 platform code. The latest ES7000
platform code is included as part of the consolidated patch update for ES7000,
which is located here:


2. Boot the kernel image.

Actual results:  
The CDROM driver is stuck trying to probe for devices (intermittently printing a
message that the hda device is losing interrupts). Keyboard is also not responsive.

Expected results:

Additional info:
Comment 1 Jason Davis 2005-04-15 14:17:41 EDT
Created attachment 113240 [details]
ES7000 Legacy Mappings Update

This update only affects Unisys' ES7000 machines.

The patch reflects a change needed to determine which generation of ES7000 is
currently running. The next generation of ES7000s will have conventional legacy
support so the patch accommodates for this. This patch has been tested and
verified on both an authentic 5xx ES7000 box and the next generation x86-64
ES7000 box. This patch has already been accepted into the upstream LK tree.
Comment 2 Bruce Vessey 2005-04-21 11:40:45 EDT
This patch is included in 2.6.12-rc2.  It's documented in
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.12-rc2 as
"[PATCH] ES7000 Legacy Mappings Update"
Comment 4 Tim Burke 2005-05-25 10:12:06 EDT
Do we have the hardware required to test this patch?
Comment 6 Bruce Vessey 2005-05-25 14:50:02 EDT
Unfortunately you do not yet have this hardware.  We are trying to get some for
you as quickly as possible.  We're keeping Andrius Benokraitis
(andriusb@redhat.com) up-to-date on the status.
Comment 8 Andrius Benokraitis 2005-06-13 15:13:38 EDT
Hardware is now onsite in Westford.
Comment 13 Jason Davis 2005-08-30 22:10:24 EDT
Created attachment 118272 [details]
ES7000 Legacy Mappings Update for U2 Kernel

Updated for U2 kernel as requested by Andrius on IT.
Comment 23 Red Hat Bugzilla 2006-03-07 13:53:30 EST
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 the 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.


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