Re: smp_call_function_single lockups

From: Chris J Arges
Date: Wed Apr 01 2015 - 12:11:30 EST

On Wed, Apr 01, 2015 at 02:43:36PM +0200, Ingo Molnar wrote:

> Have you already tested whether the hang goes away if you remove
> irq-affinity fiddling daemons from the system? Do you have irqbalance
> installed or similar mechanisms?
> Thanks,
> Ingo

Even with irqbalance removed from the L0/L1 machines the hang still occurs.
Using the debug patch as described here:

This results in no 'apic: vector* or 'ack_APIC*' messages being displayed.

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