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* [2.6.30 BUG] CPU hotplug and alternatives problem when going 2 -> 1 CPU
@ 2009-06-17  3:16 Mathieu Desnoyers
  0 siblings, 0 replies; only message in thread
From: Mathieu Desnoyers @ 2009-06-17  3:16 UTC (permalink / raw)
  To: Ingo Molnar; +Cc: linux-kernel

Hi,

I ran into a "stucked process" when trying to bring down all my CPUs on
a 2.6.30 kernel (+ lttng patchset). It's Intel Core2 Xeon.

My printk output showed :

[  133.866683] CPU 1 is now offline                                   
[  134.958702] CPU 2 is now offline                                             
[  136.054832] CPU 3 is now offline                                             
[  137.148867] CPU 4 is now offline                                             
[  138.252997] CPU 5 is now offline                                             
[  139.455014] CPU 6 is now offline                                             
[  140.561271] CPU 7 is now offline                                             
[  140.570979] SMP alternatives: switching to UP code                           

Booting with noreplace-smp makes everything work fine. Maybe it's a new
bug in 2.6.30 ?

Mathieu


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Mathieu Desnoyers
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2009-06-17  3:16 [2.6.30 BUG] CPU hotplug and alternatives problem when going 2 -> 1 CPU Mathieu Desnoyers

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