Hi!
> 1. Oops offlining cpu twice on AMD64 (but not on EM64t)
> with the 2.6.18-git22 kernel
>
> Reported to hotplug lists 10/05:
> http://lists.osdl.org/pipermail/hotplug_sig/2006-October/000680.html
>
> To recreate: offline, online, and then offline a CPU, then oopses
> http://crucible.osdl.org/runs/2397/sysinfo/amd01.console
> http://crucible.osdl.org/runs/2397/sysinfo/amd01.2/proc/config
>
> Here's a snippet of the oops:
>
> # echo 0 > /sys/devices/system/cpu/cpu1/online
>
> Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
> [<ffffffff80255287>] __drain_pages+0x29/0x5f
> PGD 7e56d067 PUD 7ee80067 PMD 0
> Oops: 0000 [1] PREEMPT SMP
> CPU 0
> Modules linked in:
> Pid: 7203, comm: bash Tainted: G M 2.6.18-git22 #1
~~~~~
kernel is unhappy here. Forced module unload?
--
Thanks for all the (sleeping) penguins.
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