Support Notes for Red Hat Enterprise Linux 5.1 for HP Integrity Servers

34. The lspci -v command may on occasion generate a large amount of output. This may be

worked around by piping the output of the lspci command to the head command with

the desired number of lines of output. Example for 100 lines of output:

# lspci -v | head -n 100

35. The HP Integrity Essentials Foundation Pack for Linux (HPIEFPL) Support Pack does not

currently support servers running Xen kernels for RHEL 5.1. Installation and configuration

of any software packages delivered by the HPIEFPL Support Pack could result in system

downtime due to potential kernel panics. To determine whether a server is running within

a Xen kernel, execute the command uname -r and verify that the kernel string contains

the substring "xen" (such as 2.6.18-8.el5xen).

36. The RHEL 5.1 update includes the completion of virtualization support on Intel Itanium

processor-based platforms. HP endorses the use of this virtualization technology for those

customers interested in early deployments. HP’s recommended reading for customers

seeking to use the virtualization technology includes Red Hat’s RHEL 5.1 documentation

(release notes, installation and virtualization guides), and how-to guide for RHEL 5.1

virtualization deployments on HP Integrity servers. These documents will cover feature

updates, known issues, minimum and maximum configuration limits for RHEL 5.1

virtualization on HP Integrity servers as well as suggested best practices.

Red Hat’s RHEL 5.1 documentation can be found at:

http://www.redhat.com/docs/manuals/enterprise/

Links to the HP Integrity RHEL 5.1 support notes and the how-to guide will be posted in

January on the Linux Integrity certification web page:

www.hp.com/go/lxintegritycert

37. When Linux boots on an mid-range/high-end (cellular) IA-64 machine with discontiguous

memory, a cell may end up in a state where it has too little contiguous memory available,

and could cause an MCA.

If you experience this issue, try one of the following methods to resolve the problem:

a. Try changing the memory configuration so that the memory in each cell is equal.

b. Try changing the CLM (Cell Local Memory) setting to increase the size of contiguous

memory.

If the system was working previously, try the pdt command at the EFI prompt. If there are

PDT entries, consider replacing the bad memory.