|Summary:||disable memory cgroups on kdump|
|Product:||Red Hat Enterprise Linux 6||Reporter:||Neil Horman <nhorman>|
|Component:||kexec-tools||Assignee:||Neil Horman <nhorman>|
|Status:||CLOSED CURRENTRELEASE||QA Contact:||Chao Ye <cye>|
|Version:||6.1||CC:||caiqian, cye, phan|
|Fixed In Version:||kexec-tools-2.0.0-85||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2010-11-10 21:00:18 UTC||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description Neil Horman 2010-06-18 15:44:23 UTC
Description of problem: the memory cgroup controller eats a significant portion of memory in the kernel, which is fine for nominal exection in most cases but can lead to oom conditions in kdump, we need to add cgroup_disable=memory to the kdump kernel command line.
Comment 1 RHEL Product and Program Management 2010-06-18 16:03:18 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux major release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Major release. This request is not yet committed for inclusion.
Comment 3 Chao Ye 2010-08-11 07:27:09 UTC
Verified with -133.el6: [root@athlon5 ~]# cat /etc/sysconfig/kdump # Kernel Version string for the -kdump kernel, such as 2.6.13-1544.FC5kdump # If no version is specified, then the init script will try to find a # kdump kernel with the same version number as the running kernel. KDUMP_KERNELVER="" # The kdump commandline is the command line that needs to be passed off to # the kdump kernel. This will likely match the contents of the grub kernel # line. For example: # KDUMP_COMMANDLINE="ro root=LABEL=/" # If a command line is not specified, the default will be taken from # /proc/cmdline KDUMP_COMMANDLINE="" # This variable lets us append arguments to the current kdump commandline # As taken from either KDUMP_COMMANDLINE above, or from /proc/cmdline KDUMP_COMMANDLINE_APPEND="irqpoll maxcpus=1 reset_devices cgroup_disable=memory"
Comment 4 firstname.lastname@example.org 2010-11-10 21:00:18 UTC
Red Hat Enterprise Linux 6.0 is now available and should resolve the problem described in this bug report. This report is therefore being closed with a resolution of CURRENTRELEASE. You may reopen this bug report if the solution does not work for you.