grep CPU /var/log/dmesg
WARNING: NR_CPUS limit of 1 reached. Processor ignored.
WARNING: NR_CPUS limit of 1 reached. Processor ignored.
WARNING: NR_CPUS limit of 1 reached. Processor ignored.
WARNING: NR_CPUS limit of 1 reached. Processor ignored.
WARNING: NR_CPUS limit of 1 reached. Processor ignored.
WARNING: NR_CPUS limit of 1 reached. Processor ignored.
WARNING: NR_CPUS limit of 1 reached. Processor ignored.
Virtuozzo Fair CPU scheduler
Initializing CPU#0
CPU: After generic identify, caps: bfebfbff 20100000 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 20100000 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 2048K
CPU: After all inits, caps: bfebf3ff 20100000 00000000 00000180
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (24) available
CPU0: Thermal monitoring enabled
CPU: Intel(R) Xeon(TM) CPU 2.80GHz stepping 08
ACPI: Processor [CPU0] (supports C1)

uname -a
Linux server.domain.com 2.6.9-023stab048.4 #1 Fri Jul 11 17:50:54 MSD 2008 i686 i686 i386 GNU/Linux

cat /etc/redhat-release
CentOS release 4.3 (Final)

This is a dual core, dual xeon server so it should be 8 processors total.