From: Jon Loeliger <jdl@jdl.com>
To: Adrian Cox <adrian@humboldt.co.uk>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>
Subject: Re: SMP in 32-bit arch/powerpc
Date: Wed, 02 Aug 2006 09:42:24 -0500 [thread overview]
Message-ID: <E1G8HvV-0007o7-0C@jdl.com> (raw)
In-Reply-To: Your message of "Wed, 02 Aug 2006 09:25:45 BST." <1154507145.24203.0.camel@localhost.localdomain>
So, like, the other day Adrian Cox mumbled:
> Is anybody else having problems with 32-bit SMP support in arch/powerpc?
> I'm using 2.6.17 as my current base, because I've not yet merged the
> latest mpic changes.
>
> I'm currently bringing up a dual-7448 board, and when I build the kernel
> with CONFIG_SMP, the bootmem allocator corrupts the device tree. The
> strange thing is, this still happens when I don't start the second CPU.
> Kernels built without CONFIG_SMP run flawlessly on the same hardware.
As a point of reference, the 32-bit 8641 HPCN seems to be working fine
with both CONFIG_SMP and the device tree mechanism in place. It was working
both before and after the IRQ changes.
Can you nail down any more specifics on how it is failing or where
the corruption happens?
jdl
next prev parent reply other threads:[~2006-08-02 14:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-02 8:25 SMP in 32-bit arch/powerpc Adrian Cox
2006-08-02 9:08 ` Michael Ellerman
2006-08-02 9:27 ` Zhang Wei-r63237
2006-08-02 13:32 ` Kumar Gala
2006-08-02 19:36 ` Adrian Cox
2006-08-02 14:42 ` Jon Loeliger [this message]
2006-08-16 23:12 ` Benjamin Herrenschmidt
2006-08-17 7:19 ` Adrian Cox
2006-08-17 7:45 ` Benjamin Herrenschmidt
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