Bug 62576

Summary:	/boot/kernel.h wrong for bigmem kernel
Product:	[Retired] Red Hat Linux	Reporter:	Matt Domsch <matt_domsch>
Component:	initscripts	Assignee:	Bill Nottingham <notting>
Status:	CLOSED DUPLICATE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.3	CC:	dale_kaisner, john_hull, rvokal
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:	2002-04-02 17:53:00 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 Matt Domsch 2002-04-02 17:42:51 UTC

Description of Problem:
kernel 2.4.18-0.12 and earlier

The kernel boot file  /boot/kernel.h is wrong. The boot file set the 
flag "#define __BOOT_KERNEL_UP 1" which 
is very wrong because the BIGMEM kernel is a SMP kernel.
This can be proved by trying the following:
cd /boot
strings vmlinux-2.4.18-0.4bigmem | grep register_chrdev
You will see register_chrdev_Rsmp_515ed577 symbol for the register_chrdev 
kernel function.

The fixes for the /boot/kernel.h are as follows:
Add the following lines:

// Note, this flag needs the be defined, so the "rhconfig.h" can use this flag
// to define the variable "__module__bigmem"
#ifndef __BOOT_KERNEL_BIGMEM
#define __BOOT_KERNEL_BIGMEM 1
#endif

// Note, this flag is required so the system can pick up the correct SMP kernel
// symbols. BIGMEM is a SMP kernel.
#ifndef __BOOT_KERNEL_SMP
#define __BOOT_KERNEL_SMP 1
#endif


Version-Release number of selected component (if applicable):
2.4.18-0.12 and earlier

Dell considers this a MUST-FIX for Hampton.

Comment 1 Matt Domsch 2002-04-02 17:52:55 UTC

With kernel 2.4.18-0.12bigmem and initscripts-6.60-1, this is half-right.
#define __MODULE_KERNEL_i686 1
#define __BOOT_KERNEL_ENTERPRISE 0
#define __BOOT_KERNEL_BIGMEM 1
#define __BOOT_KERNEL_SMP 0    (this is wrong)
#define __BOOT_KERNEL_UP 0

Comment 2 Bill Nottingham 2002-04-02 17:57:14 UTC

Actually, I think this is right... using the bigmem defines should get the
correct  bigmem symbols. SMP/UP/ENTERPRISE/BIGMEM refers to the kernel 'name',
not the features.

*** This bug has been marked as a duplicate of 62150 ***