[PATCH 0/1] LP#295091 -- do not create sysfs links for down CPUs

[Stefan Bader]

Andy Whitcroft wrote:
> The commit below introduces new sysfs links for hot-plugable cpus.
> However these are created for each ACPI listed cpu regardless of whether
> they were actually sucessfully started.  In Hardy we have another but
> #213011 where for some AMDx2 processors the second cpu will not start.
> These two in combination lead to a panic on boot when we try to create
> these sysfs links.
> 
>     commit c1d87cd9e086138b3d2326b75ae6d4d000d7c041
>     Author: Zhang Rui <rui.zhang at intel.com>
>     Date:   Tue Apr 29 02:36:07 2008 -0400
> 
> 	create sysfs link from acpi device to sysdev for cpu
> 	
> 	Bug: #248509
> 
> The patch which follow simply skips the creation of and removal of these
> links when the cpu was never initialised.  This has been tested by the bug
> reported to fix the issue.
> 
> Proposing for Hardy SRU.
> 
> -apw
> 
> Andy Whitcroft (1):
>   UBUNTU: SAUCE: do not make sysdev links for processors which are not
>     booted
> 
>  drivers/acpi/processor_core.c |    6 ++++--
>  1 files changed, 4 insertions(+), 2 deletions(-)
> 
> 
ACK

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