linux-kernel - Re: 2.6.27rc1 cannot boot more than 8CPUs

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Date:	Thu, 14 Aug 2008 01:10:36 +0800
From:	"Jeff Chua" <jeff.chua.linux@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Yinghai Lu" <yhlu.kernel@...il.com>,
	"David Miller" <davem@...emloft.net>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.27rc1 cannot boot more than 8CPUs

On Wed, Aug 13, 2008 at 10:16 PM, Ingo Molnar <mingo@...e.hu> wrote:

> btw., could you please check that v2.6.27-rc3 (or later) kernels boot
> fine (with about 8 cpus) even if you have genericarch/bigsmp disabled,
> and do not silently hang as it happened on your box before?

With 16 CPUs, it still hangs, but now the console is showing the
errors as intended.
... but it is supposed to hang?

More than 8 CPUs detected - skipping them.
Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.
More than 8 CPUs detected - skipping them.
Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.
More than 8 CPUs detected - skipping them.
Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.
More than 8 CPUs detected - skipping them.
Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.
Booting processor 8/1 ip 6000
Initializing CPU#8
Calibrating delay using timer specific routine.. 3723.88 BogoMIPS (lpj=7447763)
CPU: L1 I cache: 32Kb, L1 D cache: 32K
CPU: L2 cache: 4096K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1
CPU8: Intel(8) Xeon(R) CPU        L7345  @ 1.86GHz stepping 0b
checking TSC synchronization [CPU#0 -> CPU#8]: passed.
*** HANGS HERE ***

Thanks,
Jeff.
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