On 4/25/2011 10:26 AM, Johnny Hughes wrote:
> On 04/25/2011 08:58 AM, Windsor Dave L. (AdP/TEF7.1) wrote:
>> Just thought I'd pass along an error I received this weekend after
>> upgrading two servers to 5.6. Both are HP Proliant DL380 servers
>> running 64-bit, but one is a G6 model and one is a G7. After the
>> upgrade and the reboot to the 2.6.18-238.9.1.el5 kernel, both servers
>> displayed the following error at boot:
>> "pci_mmcfg_init marking 256MB space uncacheable."
>>
>> Some Googling found me the following link:
>> https://partner-bugzilla.redhat.com/show_bug.cgi?id=581933
>>
>> There are apparently performance implications due to this issue.
>> Fortunately, the solution is simple: just boot with the kernel parameter
>> acpi_mcfg_max_pci_bus_num=on
>>
>> If everyone is already familiar with this, please ignore. :-)
>>
>
> Supposedly this issue is fixed in the 5.6 kernel ... not introduced in it :D
>
> https://bugzilla.redhat.com/show_bug.cgi?id=581933
>
> However, the advise is good regardless of version of kernel.
>
Yes, I saw the reference to RHEL 5.5 in the bug description, but I never
saw the message before the upgrade to CentOS 5.6. Hardware differences,
I guess. The bug description mentions a Dell Precision.
Best Regards,
Dave Windsor
Robert Bosch LLC
Team Leader, MES Database Infrastructure Group (AdP/TEF7.1)
4421 Highway 81 North
Anderson, SC 29621 USA
www.bosch.us
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