RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 636116 - MADV_HUGEPAGE undeclared [rhel-6.0.z]
Summary: MADV_HUGEPAGE undeclared [rhel-6.0.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.0
Hardware: All
OS: Linux
urgent
high
Target Milestone: rc
: ---
Assignee: Frantisek Hrbata
QA Contact: Chao Ye
URL:
Whiteboard:
Depends On: 634500
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-09-21 14:29 UTC by RHEL Program Management
Modified: 2013-01-09 23:10 UTC (History)
11 users (show)

Fixed In Version: kernel-2.6.32-71.3.1.el6
Doc Type: Bug Fix
Doc Text:
Previously, MADV_HUGEPAGE was missing in the include/asm-generic/mman-common.h file which caused madvise to fail to utilize TPH. With this update, the madvise option was removed from /sys/kernel/mm/redhat_transparent_hugepage/enabled since MADV_HUGEPAGE was removed from the madvise system call.
Clone Of:
Environment:
Last Closed: 2010-11-10 19:10:30 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0842 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2010-11-22 19:34:20 UTC

Description RHEL Program Management 2010-09-21 14:29:35 UTC 
This bug has been copied from bug #634500 and has been proposed
to be backported to 6.0 z-stream (EUS).
Comment 2 Frantisek Hrbata 2010-10-04 07:14:32 UTC 
in 2.6.32-71.3.1.el6
Comment 3 Chao Ye 2010-10-11 06:38:39 UTC 
Tested with 2.6.32-71.3.1.el6:
===================================================================================
[root@ibm-ls22-01 ~]# uname --all
Linux ibm-ls22-01.rhts.eng.brq.redhat.com 2.6.32-71.3.1.el6_0.x86_64 #1 SMP Sun Oct 3 17:00:03 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
[root@ibm-ls22-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled [always] never
Comment 5 Chao Ye 2010-10-15 04:57:18 UTC 
Reproduced with kernel-2.6.32-71.el6:
===========================================================================
[root@hp-bl260cg5-01 ~]# rpm -q kernel
kernel-2.6.32-71.el6.x86_64
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
[always] madvise never


Test "transparent_hugepage=always":
-------------------------------------------------------------
[root@hp-bl260cg5-01 ~]# cat /boot/grub/grub.conf 
...
	kernel /vmlinuz-2.6.32-71.el6.x86_64 ro root=/dev/mapper/vg_hpbl260cg501-lv_root rd_LVM_LV=vg_hpbl260cg501/lv_root rd_LVM_LV=vg_hpbl260cg501/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=ttyS0,115200 crashkernel=auto transparent_hugepage=always
...
[root@hp-bl260cg5-01 ~]# reboot
......
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
[always] madvise never

Test "transparent_hugepage=never":
-------------------------------------------------------------
[root@hp-bl260cg5-01 ~]# cat /boot/grub/grub.conf 
...
	kernel /vmlinuz-2.6.32-71.el6.x86_64 ro root=/dev/mapper/vg_hpbl260cg501-lv_root rd_LVM_LV=vg_hpbl260cg501/lv_root rd_LVM_LV=vg_hpbl260cg501/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=ttyS0,115200 crashkernel=auto transparent_hugepage=never
...
[root@hp-bl260cg5-01 ~]# reboot
......
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
always madvise [never]

Test "transparent_hugepage=madvise":
-------------------------------------------------------------
[root@hp-bl260cg5-01 ~]# cat /boot/grub/grub.conf 
...
	kernel /vmlinuz-2.6.32-71.el6.x86_64 ro root=/dev/mapper/vg_hpbl260cg501-lv_root rd_LVM_LV=vg_hpbl260cg501/lv_root rd_LVM_LV=vg_hpbl260cg501/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=ttyS0,115200 crashkernel=auto transparent_hugepage=madvise
...
[root@hp-bl260cg5-01 ~]# reboot
......
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
always [madvise] never


Verified with kernel-2.6.32-71.4.1.el6:
===========================================================================
[root@hp-bl260cg5-01 ~]# rpm -q kernel
kernel-2.6.32-71.4.1.el6.x86_64
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
[always] never

Test "transparent_hugepage=never":
-------------------------------------------------------------
[root@hp-bl260cg5-01 ~]# cat /boot/grub/grub.conf 
...
	kernel /vmlinuz-2.6.32-71.4.1.el6.x86_64 ro root=/dev/mapper/vg_hpbl260cg501-lv_root rd_LVM_LV=vg_hpbl260cg501/lv_root rd_LVM_LV=vg_hpbl260cg501/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=ttyS0,115200 crashkernel=auto transparent_hugepage=never
...
[root@hp-bl260cg5-01 ~]# reboot 
......
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
always [never]


Test "transparent_hugepage=madvise":
-------------------------------------------------------------
[root@hp-bl260cg5-01 ~]# cat /boot/grub/grub.conf 
...
	kernel /vmlinuz-2.6.32-71.4.1.el6.x86_64 ro root=/dev/mapper/vg_hpbl260cg501-lv_root rd_LVM_LV=vg_hpbl260cg501/lv_root rd_LVM_LV=vg_hpbl260cg501/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=ttyS0,115200 crashkernel=auto transparent_hugepage=madvise
...
[root@hp-bl260cg5-01 ~]# reboot 
......
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
[always] never


Test "transparent_hugepage=always":
-------------------------------------------------------------
[root@hp-bl260cg5-01 ~]# cat /boot/grub/grub.conf 
...
	kernel /vmlinuz-2.6.32-71.4.1.el6.x86_64 ro root=/dev/mapper/vg_hpbl260cg501-lv_root rd_LVM_LV=vg_hpbl260cg501/lv_root rd_LVM_LV=vg_hpbl260cg501/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=ttyS0,115200 crashkernel=auto transparent_hugepage=always
...
[root@hp-bl260cg5-01 ~]# reboot
......
[root@hp-bl260cg5-01 ~]# cat /sys/kernel/mm/redhat_transparent_hugepage/enabled
[always] never



Change status to VERIFIED.
Comment 7 errata-xmlrpc 2010-11-10 19:10:30 UTC 
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-2010-0842.html
Comment 8 Martin Prpič 2010-11-11 11:53:17 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Previously, MADV_HUGEPAGE was missing in the include/asm-generic/mman-common.h file which caused madvise to fail to utilize TPH. With this update, the madvise option was removed from /sys/kernel/mm/redhat_transparent_hugepage/enabled since MADV_HUGEPAGE was removed from the madvise system call.
Note You need to log in before you can comment on or make changes to this bug.