[kexec-tools/f19] s390x, sysconfig: Change maxcpus=1 to nr_cpus=1 for s390x
WANG Chao
wangchao at fedoraproject.org
Wed Jan 22 04:57:39 UTC 2014
commit dcd2385abff8105061f709a0e67b0da0bd89557d
Author: WANG Chao <chaowang at redhat.com>
Date: Tue Jan 21 12:16:13 2014 +0800
s390x, sysconfig: Change maxcpus=1 to nr_cpus=1 for s390x
IBM would strongly recommend for s390x to replace "maxcpus=1" with
"nr_cpus=1" because with the "nr_cpus=1" kernel parameter only for one
CPU the per-cpu data structures are allocated. This currently saves
several MiB of memory.
IBM (michael.holzheu at de.ibm.com) has confirmed this patch worked fine.
Signed-off-by: WANG Chao <chaowang at redhat.com>
Acked-by: Dave Young <dyoung at redhat.com>
Acked-by: Vivek Goyal <vgoyal at redhat.com>
kdump.sysconfig.s390x | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/kdump.sysconfig.s390x b/kdump.sysconfig.s390x
index b55515a..848b043 100644
--- a/kdump.sysconfig.s390x
+++ b/kdump.sysconfig.s390x
@@ -16,7 +16,7 @@ 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="maxcpus=1 cgroup_disable=memory numa=off udev.children-max=2 panic=10 rootflags=nofail"
+KDUMP_COMMANDLINE_APPEND="nr_cpus=1 cgroup_disable=memory numa=off udev.children-max=2 panic=10 rootflags=nofail"
# Any additional /sbin/mkdumprd arguments required.
MKDUMPRD_ARGS=""
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