Bug 174655 - memory problems with > 2G
memory problems with > 2G
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Linux
medium Severity medium
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Assigned To: Dave Jones
Brian Brock
: 174978 (view as bug list)
Depends On:
  Show dependency treegraph
Reported: 2005-11-30 23:21 EST by John Ellson
Modified: 2015-01-04 17:23 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2006-02-23 12:52:58 EST
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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

  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):

How reproducible:

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