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SubjectRe: [PATCH 0/1] x86: fix remove cpu_pda table patch
Ingo Molnar wrote:
> * Mike Travis <travis@sgi.com> wrote:
>
>> [Ingo - please replace "PATCH 07/11" with this one.]
>>
>> * Remove 544k bytes from the kernel by removing the boot_cpu_pda
>> array from the data section and allocating it during startup.
>>
>> Fixed panic in setup_per_cpu_areas when HOTPLUG_CPU not set.
>>
>> For inclusion into sched-devel/latest tree.
>
> sched-devel.git randconfig testing found another crash with your queue:
>
> [ 0.111060] Brought up 1 CPUs
> [ 0.111986] Total of 1 processors activated (4022.73 BogoMIPS).
> [ 0.112987] Testing NMI watchdog ... <1>BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
> [ 0.114982] IP: [<ffffffff8180d4a0>] check_nmi_watchdog+0xb0/0x210
> [ 0.114982] PGD 0
> [ 0.114982] Oops: 0000 [1] SMP
> [ 0.114982] CPU 0
> [............]
>
> http://redhat.com/~mingo/misc/config-Mon_Apr_28_23_25_25_CEST_2008.bad
> http://redhat.com/~mingo/misc/log-Mon_Apr_28_23_25_25_CEST_2008.bad
>
> Ingo

Hi Ingo,

I need a bit more information on your hardware configuration. Building a
kernel with the above config file started up fine on both the Intel and AMD
boxes.

Based on the above output it looks like it might be a UP machine?

Thanks,
Mike


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