Bug 13513

Summary:	best_copy_from_user fail.
Product:	[Retired] Red Hat Linux	Reporter:	owlhuang
Component:	kernel	Assignee:	Michael K. Johnson <johnsonm>
Status:	CLOSED RAWHIDE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.2
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:	2000-07-06 03:44:19 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 owlhuang 2000-07-06 03:44:17 UTC

I use copy_from_user function in my module.

The kernel rejects to insert the module due to no best_copy_from_user 
symbol exported.  I have checked the /proc/ksyms, there do be 
best_copy_from_user_Rsmpe183bad0 exported.  

I precompiled my source to assembly code and there is best_copy_from_user 
but not best_copy_from_user_Rsmpe183bad0.  So, I 
checked /usr/include/linux/modules-smp/i386_ksyms.ver 
and /usr/include/linux/modules-smp/ksyms.ver, there are no relative 
definition there!!

It works if I add the following lines in i386_ksyms.ver:

#define __ver_best_copy_from_user smpe183bad0
#define best_copy_from_user _set_ver(best_copy_from_user)

Is it a bug?

Enviroment:
RedHat 6.2 with original i386 smp kernel
smp motherboard with one PIII on it.


yours, Dennis

Comment 1 Alan Cox 2000-08-22 16:22:13 UTC

Looks like some kind of module versioning problem yes
We dont have the PIII patches enabled in rawhide so closing this