From: David Miller <davem@davemloft.net>
To: galak@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org, tglx@linutronix.de, csnook@redhat.com,
linux-kernel@vger.kernel.org, maxk@qualcomm.com
Subject: Re: default IRQ affinity change in v2.6.27 (breaking several SMP PPC based systems)
Date: Fri, 24 Oct 2008 16:18:18 -0700 (PDT) [thread overview]
Message-ID: <20081024.161818.256978293.davem@davemloft.net> (raw)
In-Reply-To: <36A821E7-7F37-42AF-9A05-7205FCBF89EE@kernel.crashing.org>
From: Kumar Gala <galak@kernel.crashing.org>
Date: Fri, 24 Oct 2008 10:39:05 -0500
> As for making it ARCH specific, that doesn't really help since not
> all PPC hw has the limitation I spoke of. Not even all MPIC (in our
> cases) have the limitation.
Since the PPC code knows exactly which MPICs have the problem the
PPC code is where the constraining can occur.
I agree completely with the suggestion that the arch code has to
interpret the cpumask as appropriate for the hardware, since the
user can stick "illegal" values there anyways.
next prev parent reply other threads:[~2008-10-24 23:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-24 12:45 default IRQ affinity change in v2.6.27 (breaking several SMP PPC based systems) Kumar Gala
2008-10-24 15:17 ` Chris Snook
2008-10-24 15:39 ` Kumar Gala
2008-10-24 16:09 ` Chris Snook
2008-10-24 16:36 ` Kumar Gala
2008-10-24 17:39 ` Scott Wood
2008-10-24 18:18 ` Chris Snook
2008-10-24 18:26 ` Scott Wood
2008-10-24 17:51 ` Chris Snook
2008-10-24 23:18 ` David Miller [this message]
2008-11-19 6:43 ` Max Krasnyansky
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