Re: smp/dac960/i450gx boot problem

From: Tom G. Christensen (tom.christensen@get2net.dk)
Date: Thu May 02 2002 - 07:36:01 EST


On Tue, 30 Apr 2002, Carlos Francisco Regis wrote:

>
>
> Hello all,
>
> I'm with some troubles on trying to boot a kernel in a dual PPro machine. When a compile the kernel with smp support the machine hungs during the boot, this occurs exactly when the dac960 driver is being loaded. When I remove the smp support the driver is loaded but I have only one processor running.
>
> I think the problem is the i450kx/gx pci bridge and the pci->apic irq transform. But I can't figure out why this is happening.
>
> If someone knows some workaround, please let me know.
>
>
Me too.

I have what looks like the same problem here only my machine is a quad
PPro system (Intel Alder arch).

One thing is different though, I can't get the DAC960 to initialize no
matter what I do (it's a DAC960PL-2, fw 2.73)
Only thing I've gotten working so far is boot off a RH 7.2 install CD in
rescue mode (DAC960 driver in RH 7.2 CD is too old to support 2.73 fw)

If I boot the RH 7.2 installer the machine hangs right after loading the
AIC7xxx driver.
The symptoms are the same with kernel 2.4.18 booted of a floppy. If I
include the DAC960 driver the machine will hang as soon as it
loads, only displaying the 2 lines with driver version and copyright information.
A 2.4.18 SMP kernel boots until the DAC960 driver then hangs.

I get these PCI messages on boot (kernel 2.4.18 built for i386)
PCI: Cannot allocate resource region 1 of device 00:0f.0
PCI: Cannot allocate resource region 2 of device 00:0f.0
PCI: Cannot allocate resource region 3 of device 00:0f.0
PCI: Cannot allocate resource region 4 of device 00:0f.0
PCI: Cannot allocate resource region 5 of device 00:0f.0
PCI: Error while updating region 00:0f.0/1 (20000408 != 20000008)
PCI: Error while updating region 00:0f.0/2 (20000408 != 20000008)
PCI: Error while updating region 00:0f.0/3 (20000408 != 20000008)
PCI: Error while updating region 00:0f.0/4 (20000408 != 20000008)
PCI: Error while updating region 00:0f.0/5 (20000408 != 20000008)

lspci output is available if needed.

I tried a few other OS just to make sure the machine is okay, and I found
that Win2000 and Solaris 8/IA will install and run without any problems.
FreeBSD 4.5 release seems to have the same problem as Linux, a
hang soon after initializing the AIC7xxx driver.

-tgc

-- 
Tom G. Christensen - Email: tom.christensen@get2net.dk
Linux ares 2.4.18 on an i686

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