Re: [PATCH] x86: fix wakeup_cpu with numaq/es7000 v2

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> wrote:

> hm, one of my testboxes is rather unhappy about your patch:
> 
> [   54.718062] SMP alternatives: switching to SMP code
> [   55.083610] Booting processor 1 APIC 0x1 ip 0x6000
> [   55.088329] BUG: unable to handle kernel paging request at ffffffff817b0880
> [   55.092304] IP: [<ffffffff80f5ce20>] native_cpu_up+0x410/0xf30

triggered via:

echo 0 > /sys/devices/system/cpu/cpu1/online
sleep 1
echo 1 > /sys/devices/system/cpu/cpu1/online
sleep 1
echo 0 > /sys/devices/system/cpu/cpu1/online
sleep 1
echo 1 > /sys/devices/system/cpu/cpu1/online
sleep 1

	Ingo
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