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Subject: RE: Linux 2.4.19ac3rc3 on IBM x330/x340 SMP - "ps" time skew
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: David Luyer <david@luyer.net>
Cc: "'Dana Lacoste'" <dana.lacoste@peregrine.com>,
       linux-kernel@vger.kernel.org
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Date: 31 Jul 2002 16:04:51 +0100
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On Wed, 2002-07-31 at 14:38, David Luyer wrote:
> Yes, the problem is in the -ac train only.  It's the "processor id"
> field that has been added to /proc/cpuinfo which is confusing libc's
> way of counting CPUs.
> 
> That's a libc bug.  But there's also a kernel bug with that field
> it appears.

Currently yes - it got broken during the Summit rearrangements

> The kernel bug: the "processor id" fields are both printing zero.
> 
> Possibly because show_cpuinfo() in arch/i386/kernel/setup.c prints
> directly out of phys_proc_id as at the time it's called, but
> smpboot.c declates phys_proc_id as __initdata (either that, or
> phys_proc_id is actually zero for both CPUs?).

The former is the problem. Thanks for spotting it. As to the text
string, I'll have a chat with Ulrich about it and see what he thinks

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