Amd64/Em64T On Hp Xw9300 Workstation Will Panic If 8Gb Installed On Cpu#1; Description; Scope; Resolution - HP xw3400 User Manual

AMD64/EM64T on HP xw9300 Workstation Will Panic if 8GB Installed
on CPU#1

DESCRIPTION

On the HP xw9300 Workstation, there are memory slots associated with each CPU. Because of the
way AMD designs its Opteron processors, you can choose to install memory in both memory banks or
only in one of the memory banks. With RHEL 3 Update 4, if you install 8GB of memory (using 2GB
memory DIMMs) in CPU 1's memory bank and no memory in CPU 0's memory bank, the Red Hat set
installation kernel will panic. Furthermore, if a system has RHEL 3 U4 installed with a functional
memory configuration and then the user changes the configuration to have 8GB only on CPU 1, the
installed kernel will panic when booting.

SCOPE

This problem is only seen on an HP xw9300 Workstation using RHEL 3 Update 4 for x86-64 under
the specified conditions.

RESOLUTION

Divide the memory in an HP xw9300 Workstation between the CPUs equally. This is easily done in
the HP xw9300 Workstation because memory must be loaded in pairs.
AMD64/EM64T on HP xw9300 Workstation with 4GB or More of
Memory Will Panic When Booting the Install Kernel
DESCRIPTION
When installing RHEL 3 Update 4 [AMD64/EM64T] on an HP xw9300 Workstation with 4GB or
more of memory, the install kernel will panic.
SCOPE
This affects an HP xw9300 Workstation with 4GB or more of memory.
RESOLUTION
NOTE: This issue is resolved in RHEL3U5. If you are using RHEL3U4, then the following resolution still
applies.
HP recommends that you boot the install kernel with the additional boot option "acpi=off" by
following these steps:
Start the install as you normally would.
1.
The Red Hat Enterprise Linux install boot prompt "boot: " is displayed.
At the prompt, type linux acpi=off
2.
Continue with the install as usual.
3.
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