Memory allocation conflict with ILO

[timy2000]

I have 2 x DL580 G5 Oracle 11g database server, a primary and standby database server. Both are identical hardware configuration. Both are running RHEL 5.3 64-bit and Oracle 11g 64-bit. When I initially set up the standby server, I was able to use the ILO. But now the DBA has set up the database, I can't access the ILO and I have these errors when booting:

hpilo 0000:01:04.2: Open could not dequeue a packet

and

Program vcagentd tried to read /dev/mem between ef0000->f00000.

Primary database server is okay.

Has my DBA allocated too much memory to the database?