[CentOS] Issue with Cent OS 5.5 x64 on AMD machine

Hi,

Cent OS 5.5 x64 does not boot on certain AMD-based servers. Following error
is displayed:

Code: 8b 72 40 48 8d 4c 24 1c 48 8b 7a 20 ba c4 01 00 00 e8 5f 77
RIP [<ffffffff8008192f>] cpuid4_cache_lookup+0x256/0x356
RSP <ffff810104737d60>
CR2: 000000000040
<0>Kernel panic -- not syncing: Fatal exception
This issue was noticed on Dell PowerEdge R715 with AMD Opteron 12-core
processor. Is there any kernel specific patch which addresses this issue?

Thanks,
Anumeha