3.11-rc2: panic in __rdmsr_on_cpu

[Ilia Mirkin]

Hi,

I just built a 3.11-rc2 kernel (+ a few patches, but nothing
arch-related), and I saw the following: http://i.imgur.com/dCTqOyR.jpg

The rough transcription is

Call Trace:
<IRQ>
generic_smp_call_fucntion_single_interrupt
smp_call_function_single_interrupt
call_function_single_interrupt
<EOI>
? default_idle
? default_idle
arch_cpu_idle
cpu_startup_entry
rest_init
start_kernel
? repair_env_string
x86_64_start_reservations
x86_64_start_kernel
Code: ... cc 81 8b 0f <0f> 32 48 c1 e2 20 89 c0 ...
RIP: __rdmsr_on_cpu+0x2e/0x44
Kernel panic - not syncing: Fatal exception in interrupt

A 3.10-rc7 kernel booted just fine. Is this likely a real issue? Or
perhaps a mis-build of some sort?

Thanks for any advice,

  -ilia
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