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Since the recent setting of CONFIG_DEBUG_SECTION_MISMATCH to 'y', builds of RHEL6.1 are seeing the following warning message:
WARNING: mm/built-in.o(.text+0x405c0): Section mismatch in reference from the function hugetlb_register_node() to the function .init.text:hugetlb_sysfs_add_hstate()
The function hugetlb_register_node() references
the function __init hugetlb_sysfs_add_hstate().
This is often because hugetlb_register_node lacks a __init
annotation or the annotation of hugetlb_sysfs_add_hstate is wrong.
It turns out that the annotation of hugetlb_sysfs_add_hstate() is wrong. And can be corrected by backporting the following linux-2.6 commit:
commit 094e9539bd24bbe23b8e2741e903b0f3f1f85b03
Author: Jeff Mahoney <jeffm>
Date: Tue Feb 2 13:44:14 2010 -0800
hugetlb: fix section mismatches
Comment 1RHEL Program Management
2011-01-26 15:30:53 UTC
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update release.
An advisory 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 therefore 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/RHSA-2011-0542.html
Since the recent setting of CONFIG_DEBUG_SECTION_MISMATCH to 'y', builds of RHEL6.1 are seeing the following warning message: WARNING: mm/built-in.o(.text+0x405c0): Section mismatch in reference from the function hugetlb_register_node() to the function .init.text:hugetlb_sysfs_add_hstate() The function hugetlb_register_node() references the function __init hugetlb_sysfs_add_hstate(). This is often because hugetlb_register_node lacks a __init annotation or the annotation of hugetlb_sysfs_add_hstate is wrong. It turns out that the annotation of hugetlb_sysfs_add_hstate() is wrong. And can be corrected by backporting the following linux-2.6 commit: commit 094e9539bd24bbe23b8e2741e903b0f3f1f85b03 Author: Jeff Mahoney <jeffm> Date: Tue Feb 2 13:44:14 2010 -0800 hugetlb: fix section mismatches