Support Notes for SUSE LINUX Enterprise Server 10 Service Pack 2 for HP Integrity Servers

18. The ELILO bootloader can pass command-line options to the Linux kernel. The max_addr=

and mem= options limit the amount of memory used by the kernel.

Some versions of the kernel handle these arguments incorrectly, resulting in an MCA that

crashes the system during boot. If the system boots successfully, there is no risk of a crash

due to this problem.

Booting with max_addr= or mem= is sometimes useful for debugging problems, but is not

a tested feature. A similar effect can be achieved by deconfiguring (with the EFI dimmconfig

command) or physically removing DIMMs.

19. System panics may occur on Integrity servers running Linux that have fibre channel (FC)

storage arrays directly connected.

If you plan to connect FC storage to Integrity Servers running Linux, you must connect

through a FC switch. For the BL860c Blade servers, customers must use either the FC switch

module (AE370A/AE371A/AE372A) or an external FC switch.

20. After installing the operating system, if a message similar to the following is displayed, you

will need to take action.

Loading.: SUSE Linux Enterprise Server Load of SUSE Linux Enterprise

Server SP2 failed: Not Found Press any key to continue

To resolve this problem, enter the following commands:

# reconnect -r

# map -r

Then reboot. This can be done by exiting the shell (using the exit command) and reselecting

the EFI boot menu entry.

21. 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.

22. The Kernel Debugger (KDB) is included in SLES 10. When a Transfer of Control (TOC) is

issued, instead of producing a dump, the SLES 10 kernel enters the KDB. This process may

cause issues, and HP recommends that you do not use TOC.

23. This problem is specific to the LSI1068 SAS I/O controller in the rx2660, BL860c and the

BL870c.

The mpt driver included in SLES10 SP2 does not have the necessary agent components

required by HP System Insight Manager. To fix this problem, HP has qualified a special

version of the mpt driver, which can be downloaded from the drivers area of www.hp.com.