From de05667da75d42dc3945edce80391cc7b88f6c01 Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Fri, 1 Nov 2013 10:01:08 -0400 Subject: [PATCH] Add patch to allow NR_CPUS=1024 on x86_64 The way the kconfig is structured, you either have a range from 2-512 CPUs if SMP is set and MAXSMP is not set, or you get the default value of 4096 as soon as you set MAXSMP. Increase the range to 1024 in the !MAXSMP case. --- kernel.spec | 3 +++ x86-allow-1024-cpus.patch | 13 +++++++++++++ 2 files changed, 16 insertions(+) create mode 100644 x86-allow-1024-cpus.patch diff --git a/kernel.spec b/kernel.spec index 483fd8835..1ca44cae4 100644 --- a/kernel.spec +++ b/kernel.spec @@ -625,6 +625,8 @@ Patch470: die-floppy-die.patch Patch510: silence-noise.patch Patch530: silence-fbcon-logo.patch +Patch600: x86-allow-1024-cpus.patch + Patch800: crash-driver.patch # crypto/ @@ -1278,6 +1280,7 @@ ApplyOptionalPatch upstream-reverts.patch -R # Architecture patches # x86(-64) +ApplyPatch x86-allow-1024-cpus.patch # ARM64 diff --git a/x86-allow-1024-cpus.patch b/x86-allow-1024-cpus.patch new file mode 100644 index 000000000..decafd6ef --- /dev/null +++ b/x86-allow-1024-cpus.patch @@ -0,0 +1,13 @@ +diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig +index f67e839..d726b2d 100644 +--- a/arch/x86/Kconfig ++++ b/arch/x86/Kconfig +@@ -825,7 +825,7 @@ config MAXSMP + config NR_CPUS + int "Maximum number of CPUs" if SMP && !MAXSMP + range 2 8 if SMP && X86_32 && !X86_BIGSMP +- range 2 512 if SMP && !MAXSMP ++ range 2 1024 if SMP && !MAXSMP + default "1" if !SMP + default "4096" if MAXSMP + default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)