[pve-devel] applied: [PATCH kernel] disable intel_idle for Atom N200 series

[Fabian Grünbichler]

with the recent upgrade to 4.4.44

On Fri, Feb 24, 2017 at 03:28:04PM +0100, Fabian Grünbichler wrote:
> Reported-By: Felix Krohn <felix.krohn at corp.ovh.com>
> Signed-off-by: Fabian Grünbichler <f.gruenbichler at proxmox.com>
> ---
>  Makefile                                           |  1 +
>  ...l_idle-Add-CPU-model-54-Atom-N2000-series.patch | 34 ++++++++++++++++++++++
>  2 files changed, 35 insertions(+)
>  create mode 100644 Revert-intel_idle-Add-CPU-model-54-Atom-N2000-series.patch
> 
> diff --git a/Makefile b/Makefile
> index b655151..fdfc3cf 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -270,6 +270,7 @@ ${KERNEL_SRC}/README ${KERNEL_CFG_ORG}: ${KERNELSRCTAR}
>  	cd ${KERNEL_SRC}; patch -p1 < ../CVE-2017-2583-KVM-x86-fix-emulation-of-MOV-SS-null-selector.patch
>  	cd ${KERNEL_SRC}; patch -p1 < ../CVE-2017-2596-kvm-page-reference-leakage-in-handle_vmon.patch
>  	cd ${KERNEL_SRC}; patch -p1 < ../CVE-2017-6074-dccp-fix-freeing-skb-too-early-for-IPV6_RECVPKTINFO.patch
> +	cd ${KERNEL_SRC}; patch -p1 < ../Revert-intel_idle-Add-CPU-model-54-Atom-N2000-series.patch
>  	sed -i ${KERNEL_SRC}/Makefile -e 's/^EXTRAVERSION.*$$/EXTRAVERSION=${EXTRAVERSION}/'
>  	touch $@
>  
> diff --git a/Revert-intel_idle-Add-CPU-model-54-Atom-N2000-series.patch b/Revert-intel_idle-Add-CPU-model-54-Atom-N2000-series.patch
> new file mode 100644
> index 0000000..8e7a14a
> --- /dev/null
> +++ b/Revert-intel_idle-Add-CPU-model-54-Atom-N2000-series.patch
> @@ -0,0 +1,34 @@
> +From 91846c55815e659a7f0b26b86f0252a9d9803423 Mon Sep 17 00:00:00 2001
> +From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler at proxmox.com>
> +Date: Fri, 24 Feb 2017 13:37:45 +0100
> +Subject: [PATCH] Revert "intel_idle: Add CPU model 54 (Atom N2000 series)"
> +MIME-Version: 1.0
> +Content-Type: text/plain; charset=UTF-8
> +Content-Transfer-Encoding: 8bit
> +
> +As requested by OVH, to fix unbootable systems with Atom
> +N2800 CPUs. This should not affect other CPU classes at all.
> +
> +This reverts commit acead1b0fac5b10d0ae3f1cc5f7820b9f9f924f5.
> +
> +Reported-By: Felix Krohn <felix.krohn at corp.ovh.com>
> +Signed-off-by: Fabian Grünbichler <f.gruenbichler at proxmox.com>
> +---
> + drivers/idle/intel_idle.c | 1 -
> + 1 file changed, 1 deletion(-)
> +
> +diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
> +index 012980a..fbb8646 100644
> +--- a/drivers/idle/intel_idle.c
> ++++ b/drivers/idle/intel_idle.c
> +@@ -995,7 +995,6 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
> + 	ICPU(0x2f, idle_cpu_nehalem),
> + 	ICPU(0x2a, idle_cpu_snb),
> + 	ICPU(0x2d, idle_cpu_snb),
> +-	ICPU(0x36, idle_cpu_atom),
> + 	ICPU(0x37, idle_cpu_byt),
> + 	ICPU(0x4c, idle_cpu_cht),
> + 	ICPU(0x3a, idle_cpu_ivb),
> +-- 
> +2.1.4
> +
> -- 
> 2.1.4
> 
> 
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