Subject: Re: mlx4 2.6.31-rc5: SW2HW_EQ failed.

From: Roland Dreier <[email-masked]>
Date: Wed, 19 Aug 2009 00:03:26 -0700

By the way, my dual-socket nehalem EP system says:

    SMP: Allowing 16 CPUs, 0 hotplug CPUs

which I think (haven't checked but the code sure looks that way) means
that num_possible_cpus() is 16.  This is a supermicro workstation board,
forget the exact model.

And the fact that your system is different is not really a bug -- it
just points to slightly incorrect data somewhere, most likely ACPI
tables; having 32 possible CPUs on a system that can only ever really
have 16 CPUs just leads to some overallocations, and tickles the mlx4
bug where it can't handle more than 32 interrupts).

Just FWIW.

 - R.