From: Pavol Cvengros <pavol.cvengros@primeinteractive.net>
Organization: Prime Interactive Ltd.
To: linux-kernel@vger.kernel.org
Subject: ICH9 & Core2 Duo - kernel crash
Date: Tue, 4 Dec 2007 13:31:24 +0100
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Hello,

I am trying LKML to get some help on one linux kernel related problem.
Lately we got a machine with new HW from Intel. CPU is Intel Core2 Duo E6850 
3GHz with 2GB of RAM. Motherboard is Intel DG33BU with G33 chipset.

After long fight with kernel crashes on different things, we figured out that 
if the multicore is disabled in bios, everything is ok and machine is running 
good. No kernel crashes no problems, but with one core only.

This small table will maybe explain:

Cores   -     kernel   -   state
   2  -   nonsmp or smp  - crash
   1  -  smp or nonsmp  - ok

All crashes have been different (swaper, rcu, irq, init.....) or we just got 
internal gcc compiler error while compiling kernel/glibc/.... and the machine 
was frozen.

Please can somebody advise what to do to identify that problem more precisely.
(debug kernel options?)

Our immpresion - ICH9 & ICH9R support in kernel is bad... sorry to say..

lspci:
00:00.0 Host bridge: Intel Corporation DRAM Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Integrated Graphics 
Controller (rev 02)
00:03.0 Communication controller: Intel Corporation MEI Controller (rev 02)
00:1a.0 USB Controller: Intel Corporation USB UHCI Controller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation USB UHCI Controller #5 (rev 02)
00:1a.2 USB Controller: Intel Corporation USB UHCI Controller #6 (rev 02)
00:1a.7 USB Controller: Intel Corporation USB2 EHCI Controller #2 (rev 02)
00:1c.0 PCI bridge: Intel Corporation PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation PCI Express Port 4 (rev 02)
00:1c.4 PCI bridge: Intel Corporation PCI Express Port 5 (rev 02)
00:1d.0 USB Controller: Intel Corporation USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation LPC Interface Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 4 port SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation SMBus Controller (rev 02)
00:1f.5 IDE interface: Intel Corporation 2 port SATA IDE Controller (rev 02)
02:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6101 single-port 
PATA133 interface (rev b1)
06:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL-8139/8139C/8139C+ (rev 10)

Thanks for any kind of help...

Best regards,

Pavol Cvengros

-- 
-----------[ Signature ]---------
Name: Pavol Cvengros
Company: Prime Interactive, Ltd.
E-mail: pavol.cvengros@primeinteractive.net
Web: http://www.primeinteractive.net
Personal web: http://orpheus.grass.sk
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