Re: Another preempt folding issue?

[Peter Zijlstra]

On Wed, Feb 12, 2014 at 12:09:29PM +0100, Stefan Bader wrote:
> Something else here I run a kernel with CONFIG_PREEMPT not set and NR_CPUS
> limited to 8 (for the 32bit kernel). So the default apic driver is used. Since
> default_send_IPI_mask_logical is only used from there, I assume the trace you
> got does the same. Maybe something there is wrong which would explain why we
> only see it on 32bit hosts.

Can you try with a different APIC driver to test this?
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