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 _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos