Bug 174655 – memory problems with > 2G

Bug 174655 - memory problems with > 2G

Summary:	memory problems with > 2G

Status:	CLOSED RAWHIDE

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	kernel (Show other bugs)
Sub Component:
Version:	rawhide
Hardware:	x86_64 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Dave Jones
QA Contact:	Brian Brock
Docs Contact:

URL:
Whiteboard:
Keywords:

Duplicates:	174978 (view as bug list)
Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2005-11-30 23:21 EST by John Ellson
Modified:	2015-01-04 17:23 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2006-02-23 12:52:58 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:

Attachments	(Terms of Use)
picture of panic with kernel-2.6.14-1.1739_FC5 and 4G memory (1.62 MB, image/jpeg) 2005-12-05 19:56 EST, John Ellson	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description John Ellson 2005-11-30 23:21:27 EST

Description of problem:
kernel-2.6.14-1.1632_FC5 only see 2.8G when 4G is installed.

Later kernels, including kernel-2.6.14-1.1719_FC5, go into some very early panic
when > 2G installed.

Version-Release number of selected component (if applicable):
kernel-2.6.14-1.1719_FC5
kernel-2.6.14-1.1632_FC5

How reproducible:
100%

Steps to Reproduce:
1. install 4G memory
2. reboot
3.
  
Actual results:


Expected results:
4G real memory should work on a 64bit processor

Additional info:

Comment 1 Dave Jones 2005-12-01 04:48:54 EST

can you grab the latest kernel from
http://people.redhat.com/davej/kernels/Fedora/devel/ and paste the output of
dmesg -s 128000 please ?

(The panic should be fixed in 1725 and newer)

Comment 2 John Ellson 2005-12-05 08:04:57 EST

(I hate the way bugs in NEEDINFO state disappear from "My Bugs" in Bugzilla!)

I'm not close to the machine now, but when  retried with 4G yesterday, with 1739
I think, I was still getting panics very early in the reboot sequence.

No opportunity to run dmesg.

I tried with and without the bios option of filling the memory hole.

Comment 3 John Ellson 2005-12-05 19:56:46 EST

Created attachment 121881 [details]
picture of panic with kernel-2.6.14-1.1739_FC5 and 4G memory

This also with mkinitrd-5.0.10-1 since sofware rid doesn't work with
mkinitrd-5.0.12-1

Comment 4 Tim Waugh 2005-12-06 05:31:12 EST

*** Bug 174978 has been marked as a duplicate of this bug. ***

Comment 5 Tim Waugh 2005-12-06 05:33:17 EST

I see this too.  Still happens with 1740 from people.redhat.com.  ASUS SK8N
motherboard, AMIBIOS revision 1004.

Comment 6 Tim Waugh 2006-02-23 12:52:58 EST

This doesn't seem to happen any more.

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