Bug 129515 - Installation of RHEL 3.0 U2 on EM64T (x86_64) servers report only UP kernel config being loaded/
Summary: Installation of RHEL 3.0 U2 on EM64T (x86_64) servers report only UP kernel c...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: kernel
Version: 3.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2004-08-09 21:40 UTC by Heather Conway
Modified: 2007-11-30 22:07 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2004-08-09 21:41:52 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)

Description Heather Conway 2004-08-09 21:40:36 UTC
Description of problem:
The initial nstallation of RHEL 3.0 U2 on EM64T (x86_64) servers
report only UP kernel config being loaded.  Even though the server has
2 CPUs, the v2.4.21-15.EL kernel config is being loaded, not the
v2.4.21-15.ELsmp.
The CPUs are being reported twice in /proc/cpuinfo, ie.  if there is 1
CPU, two are reported and if there are 2 CPUs, then four are reported.

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



How reproducible:
Every time.


Steps to Reproduce:
Install RHEL 3.0 x86_64 on any EM64T capable system with either 3.0GHz
or 3.4GHz CPUs.
  
Actual results:
The kernel config reports itself as UP, instead of SMP, even when
multiple CPUs are installed in the host.

Expected results:


Additional info:

Comment 1 Arjan van de Ven 2004-08-09 21:41:52 UTC
the kernel doesn't report UP; for example 
cat /boot/config-`uname -r` | grep SMP
will show SMP.

Comment 2 Heather Conway 2004-08-09 21:48:40 UTC
So the v2.4.21-15.EL kernel will support the SMP and highmem systems
in the same kernel, correct?  Therefore, for both EM64T and for AMD64
systems, only the v2.4.21-15.EL kernel need be selected, not the
v2.4.21-15.ELsmp, correct?
Thanks.



Comment 3 Arjan van de Ven 2004-08-09 21:50:21 UTC
for amd64 we decided to ship 2 kernel binaries, because UP amd64 boxes
do exist while for em64t, due to hyper threading, they don't.

Btw you cannot and should not determine the value of CONFIG_SMP based
on the kernel name.

Comment 4 Heather Conway 2004-08-09 21:50:45 UTC
Got it...thanks.


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