Bug 3911

Summary:	Problem in kernel version support on SMP
Product:	[Retired] Red Hat Linux	Reporter:	fred-m
Component:	kernel	Assignee:	David Lawrence <dkl>
Status:	CLOSED NEXTRELEASE	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	6.0	CC:	gafton
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	1999-08-31 16:25:57 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description fred-m 1999-07-06 08:22:10 UTC

When I compile an SMP kernel from the Red Hat 6.0 kernel
sources with CONFIG_MODVERSIONS, the exported kernel
symbols do not have "smp_" on the version:
% grep printk /proc/ksyms
c01165dc printk_R1b7d4074

This might be a problem with the headers, because I am also
having problems to compile modules on this machine.

These problems do not happen when I compile a 2.2.5 kernel
from the "standard" sources:
% grep printk /proc/ksyms
c01143ac printk_Rsmp_1b7d4074

Two notes:
- This one might be related to bugs 3151, 3072, etc.
- Upgrading from 5.2 didn't detect the computer as an SMP
machine, I had to install the SMP kernel later. Any chance
that this might be related to the cause?

Comment 1 Preston Brown 1999-07-12 17:09:59 UTC

Cristian, any comments on this one?

Comment 2 Pekka Savola 1999-07-13 09:43:59 UTC

I have noticed the same (rather annoying) problem with a clean RH6.0
install into a dual-P3 computer.  For example, compiling a new network
driver (manually) causes errors - if I recompiled the whole kernel it
would no doubt work:
--- [ straight from eepro100.c - leaving -DMODVERSIONS thing off is no
help]
gcc -D__SMP__ -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c
eepro100.c `[ -f /usr/include/linux/modversions.h ] && echo
-DMODVERSIONS`
---
[root@dstar src]# insmod eepro100.o
eepro100.o: kernel-module version mismatch
        eepro100.o was compiled for kernel version 2.2.5-22
        while this kernel is version 2.2.5-22smp.
----
[root@dstar src]# uname -r
2.2.5-22smp
----

Comment 3 Bill Nottingham 1999-08-31 16:24:59 UTC

This is fixed in the latest kernels in Raw Hide.

Comment 4 Bill Nottingham 1999-08-31 16:25:59 UTC

make that, will be fixed with kernel-2.2.12-3 in the
next Raw Hide release.