Jiang Liu wrote on 08/11/15 23:33:
> On 2015/11/7 15:56, Arthur Marsh wrote:
>> Hi, I've run into a situation where I've been getting a lock-up a few
>> seconds into the boot process on a machine with an ASUS A8V-MX
>> motherboard, BIOS 0503    12/06/2005 with AMD Athlon(tm) 64 Processor
>> 3200+ (single core) with kernel compiled in 32 bit mode (config attached
>> was used for both the problem kernel and kernel with the patch reverted,
>> dmesg attached was for the kernel with the patch reverted).
>>
>> A git bisect traced the problem back to:
>>
>> git bisect good
>> 4d6b4e69a245e9df4b84dba387596086cb66887d is the first bad commit
>> commit 4d6b4e69a245e9df4b84dba387596086cb66887d
>> Author: Jiang Liu <jiang.liu@linux.intel.com>
>> Date:   Wed Oct 14 14:29:41 2015 +0800
>>
>>       x86/PCI/ACPI: Use common interface to support PCI host bridge
>>
>>       Use common interface to simplify ACPI PCI host bridge implementation.
>>
>>       Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
>>       Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
>>       Acked-by: Bjorn Helgaas <bhelgaas@google.com>
>>       Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>>
>> :040000 040000 a3447eea376b5a3e6f57deb35cf064c5481b45e3
>> f64d8e49fd87b776933dfa3dfefcb33509004d3f M      arch
>>
>>  From the boot-up I get the message as shown in the images at:
>> http://www.users.on.net/~arthur.marsh/20151107601.jpg and
>> http://www.users.on.net/~arthur.marsh/20151107602.jpg
>>
>> The boot-up suggests trying rebooting with pci=alloc but that didn't help.
>>
>> The errors shown include
>> "BAR 0: trying firmware assignment [io  size 0x0020]"
>> "BAR 0: [io  size 0x0020] conflicts with PCI Bus #00 [io  0x0000-0xffff]
>> "BAR 0: failed to assign [io  size 0x0020]
>>
>> After reverting the patch and installing the resulting kernel I was able
>> to boot normally.
>>
>> I'd be happy to provide any further information and run further tests to
>> help identify and resolve the proble.
> Hi Arthur,
> 	Sorry for the regression. Could you please also help to
> provide the ACPI tables from the affected system? You may get
> ACPI tables by installing acpidump and then 'acpidump > acpitables.bin'.
> Thanks,
> Gerry

Done!

Arthur.