unexpected IO-APIC

Hi,

Just setup RHAS 2.1 on a new Dual Xeon HT 2.4Ghz server, and I'm getting weird errors on bootup. Here's the relevant portion of the messages log.

Any ideas on this, and is this a real problem ?

Thanks,
Ben Osborne.

================================================================

May 20 22:22:35 stats1 kernel: CPU2: Intel(R) Xeon(TM) CPU 2.40GHz stepping 07
May 20 22:22:35 stats1 rc: Starting sshd:  succeeded
May 20 22:22:16 stats1 rc.sysinit: Enabling swap space:  succeeded
May 20 22:22:35 stats1 kernel: Booting processor 3/7 eip 2000
May 20 22:22:18 stats1 init: Entering runlevel: 5
May 20 22:22:35 stats1 kernel: Initializing CPU#3
May 20 22:22:18 stats1 kudzu: Updating /etc/fstab succeeded
May 20 22:22:35 stats1 kernel: masked ExtINT on CPU#3
May 20 22:22:29 stats1 kudzu:  succeeded
May 20 22:22:35 stats1 kernel: ESR value before enabling vector: 00000000
May 20 22:22:29 stats1 sysctl: net.ipv4.ip_forward = 0
May 20 22:22:35 stats1 kernel: ESR value after enabling vector: 00000000
May 20 22:22:29 stats1 sysctl: net.ipv4.conf.default.rp_filter = 1
May 20 22:22:35 stats1 kernel: Calibrating delay loop... 4784.12 BogoMIPS
May 20 22:22:29 stats1 sysctl: kernel.sysrq = 0
May 20 22:22:29 stats1 network: Setting network parameters:  succeeded
May 20 22:22:36 stats1 kernel: CPU: L1 I cache: 12K, L1 D cache: 8K
May 20 22:22:29 stats1 network: Bringing up interface lo:  succeeded
May 20 22:22:36 stats1 kernel: CPU: L2 cache: 512K
May 20 22:22:36 stats1 kernel: CPU: Physical Processor ID: 3
May 20 22:22:31 stats1 network: Bringing up interface eth0:  succeeded
May 20 22:22:36 stats1 kernel: Intel machine check reporting enabled on CPU#3.
May 20 22:22:36 stats1 kernel: CPU3: Intel(R) Xeon(TM) CPU 2.40GHz stepping 07
May 20 22:22:36 stats1 kernel: Total of 4 processors activated (19123.40 BogoMIPS).
May 20 22:22:36 stats1 kernel: cpu_sibling_map[0] = 1
May 20 22:22:36 stats1 kernel: cpu_sibling_map[1] = 0
May 20 22:22:36 stats1 kernel: cpu_sibling_map[2] = 3
May 20 22:22:36 stats1 kernel: cpu_sibling_map[3] = 2
May 20 22:22:36 stats1 kernel: ENABLING IO-APIC IRQs
May 20 22:22:36 stats1 kernel: ...changing IO-APIC physical APIC ID to 8 ... ok.
May 20 22:22:36 stats1 kernel: ...changing IO-APIC physical APIC ID to 9 ... ok.
May 20 22:22:36 stats1 kernel: ...changing IO-APIC physical APIC ID to 10 ... ok.
May 20 22:22:36 stats1 kernel: ..TIMER: vector=0x31 pin1=2 pin2=0
May 20 22:22:36 stats1 kernel: testing the IO APIC.......................
May 20 22:22:36 stats1 kernel:
May 20 22:22:36 stats1 kernel:  WARNING: unexpected IO-APIC, please mail
May 20 22:22:36 stats1 kernel:           to [email protected]
May 20 22:22:36 stats1 kernel:
May 20 22:22:36 stats1 kernel:  WARNING: unexpected IO-APIC, please mail
May 20 22:22:36 stats1 kernel:           to [email protected]
May 20 22:22:36 stats1 kernel:
May 20 22:22:36 stats1 kernel:  WARNING: unexpected IO-APIC, please mail
May 20 22:22:36 stats1 kernel:           to [email protected]
May 20 22:22:36 stats1 kernel: .................................... done.

AS 2.1 is quite an old base kernel, it expects the IO APIC to have certain properties which are not true on the Xeons. Its fine working with them it just logged stuff at boot

Its not