Bug 126218

Summary: s390 kernels do not export _sb_findmap
Product: Red Hat Enterprise Linux 3 Reporter: Manish Singh <manish.singh>
Component: kernelAssignee: Pete Zaitcev <zaitcev>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 3.0CC: petrides, riel
Target Milestone: ---Keywords: FutureFeature
Target Release: ---   
Hardware: s390x   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
Doc Text:
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Clone Of: Environment:
Last Closed: 2004-12-20 20:55:21 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
Candidate #1 none

Description Manish Singh 2004-06-17 17:25:02 UTC 
Description of problem:
find_first_bit and find_next_bit need the _sb_findmap table, but
that's not exported (in 2.4.21-15.EL and prior at least), so they
can't be used from modules. Fix is to
EXPORT_SYMBOL_NOVERS(_sb_findmap); in s390_ksyms.c, for both the s390
and s390x arches. This is already in 2.6 upstream, and accordingly it
looks like RHEL4 doesn't have this problem.

Version-Release number of selected component (if applicable):
2.4.21-15.EL

How reproducible:
Try to compile and load a module that uses find_first_bit or
find_next_bit (e.g., ocfs2)
Comment 1 Pete Zaitcev 2004-09-01 23:01:09 UTC 
Created attachment 103379 [details]
Candidate #1
Comment 2 Ernie Petrides 2004-09-18 05:59:29 UTC 
A fix for this problem has just been committed to the RHEL3 U4
patch pool this evening (in kernel version 2.4.21-20.7.EL).
Comment 3 John Flanagan 2004-12-20 20:55:21 UTC 
An errata has been issued which should help the problem 
described in this bug report. This report is therefore being 
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, 
please follow the link below. You may reopen this bug report 
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2004-550.html