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From: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
To: Andrew Theurer <habanero@us.ibm.com>, linux-kernel@vger.kernel.org
Subject: Re: Hyperthreading and physical/logical CPU identification
Date: Mon, 29 Apr 2002 15:41:55 -0700	[thread overview]
Message-ID: <26950000.1020120115@flay> (raw)
In-Reply-To: <200204291849.NAA23906@popmail.austin.ibm.com>

> The problem is, I have 4 physical processors, but kernel.org kernels so far 
> do not recognize all of them.  2.4.18 will find 3, while 2.5.11 will find 
> only 2 (BIOS hyperthreading support off, no acpismp=force).  However, on 
> 2.5.11, if I enable hyperthreading (thru BIOS and acpismp=force, I see 4 
> processors.  

When you say the kernel doesn't recognise all of the physical processors, 
do you mean it doesn't see them in the MPS/ACPI table, or that they fail to 
boot? Can you post your boot log?

I see you have a "us.ibm.com" email address ... is this machine an x440,
one of it's smaller brethren, or something totally different?

M.




  reply	other threads:[~2002-04-29 21:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-29 18:31 Hyperthreading and physical/logical CPU identification Andrew Theurer
2002-04-29 22:41 ` Martin J. Bligh [this message]
2002-04-30 17:00   ` Jack F. Vogel
  -- strict thread matches above, loose matches on Subject: below --
2002-04-29 19:40 Grover, Andrew
2002-04-29 19:59 ` Andrew Theurer
2002-04-29 22:20   ` J.A. Magallon
2002-04-29 23:14 ` Jauder Ho
2002-04-29 20:41 Holzrichter, Bruce

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