Bug 123525 - [PATCH] Kernel fails with kernel parameter apm=power-off on SMP System.
Summary: [PATCH] Kernel fails with kernel parameter apm=power-off on SMP System.
Alias: None
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: kernel (Show other bugs)
(Show other bugs)
Version: 3.0
Hardware: i686 Linux
Target Milestone: ---
Assignee: Ingo Molnar
QA Contact: Brian Brock
: 129498 (view as bug list)
Depends On:
Blocks: 123574
TreeView+ depends on / blocked
Reported: 2004-05-19 00:59 UTC by Fuchi Hideshi
Modified: 2015-04-20 00:43 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2004-12-20 20:55:17 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2004:550 normal SHIPPED_LIVE Updated kernel packages available for Red Hat Enterprise Linux 3 Update 4 2004-12-20 05:00:00 UTC

Description Fuchi Hideshi 2004-05-19 00:59:25 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; ja-JP; rv:1.4.2)

Description of problem:
During system boot, kernel fails with kernel parameter apm=power-off
on SMP System. During boot an error message will be reported by the

-------------[ cut here ]--------------
kernel BUG at apm.c:1743!
invalid operand: 0000

CPU:	2
EIP:	0060:[<c011b94e>]	Not tainted
EFLAGS:	00010202

EIP is at apm [kernel] 0x33e (2.4.21-15-ELsmp/i686)
eax:   00000002	       ebx:  c179c000	ecx:	c0435280	edx:	ffffffff
esi:   c02b09ab	       edi:  c179c552	ebp:	00000000	esp:	c179dfd0
ds:    0068	       es:   0068	ss:	0068
Process kapmd (pid: 7, stackpage=c179d000)
Stack: 00000000 00000000 00000000 00000000 00000068 c011b610 00000000
       c010958d 00000000 00000000 00000000
Call Trace:	[<c011b610>] apm [kernel] 0x0 (0xc179dfe4)
[<c010958d>] kernel_thread_helper  [kernel] 0x5 (0x179dff0)

Code: 0f 0b cf 06 fd 08 2b c0 e9 03 fd ff ff 90 8d 74 26 00 83 ec

Kernel panic: Fatal exception 

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

How reproducible:

Steps to Reproduce:
1. System boot with kernel parameter apm=power-off
2. Kerlen panic

Actual Results:  
kernel panic during system boot.

Expected Results:  
No kernel panic.

Additional info:

P4 smp system and single Xeon(with HT) system work fine, But Dual Xeon
system with HT does not work fine.

Comment 2 Rik van Riel 2004-05-19 02:59:27 UTC
Assigning to Ingo since his name appears inside the patch ;)

Ingo, I know that APM isn't SMP safe due to BIOS restrictions, but if
the above patch is harmless enough I guess we could merge it into
RHEL3 to fix the issue NEC is running into.

Comment 5 Jeff Needle 2004-08-10 01:18:02 UTC
*** Bug 129498 has been marked as a duplicate of this bug. ***

Comment 11 Ernie Petrides 2004-09-11 05:14:39 UTC
A fix for this problem has just been committed to the RHEL3 U4
patch pool this evening (in kernel version 2.4.21-20.5.EL).

Comment 15 John Flanagan 2004-12-20 20:55:17 UTC
An errata 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.