hi, My server is dell poweredge 2850, os is linux AS3,when i start system,i find some errors on dmesg process: [root@localhost root]# dmesg|more ..... An unexpected IO-APIC was found. If this kernel release is less than three months old please report this to linux-smp@xxxxxxxxxxxxxxx .... IRQ redirection table: NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect: 00 000 00 1 0 0 0 0 0 0 00 01 00F 0F 0 0 0 0 0 1 1 39 02 00F 0F 0 0 0 0 0 1 1 31 03 000 00 1 0 0 0 0 0 0 00 04 00F 0F 0 0 0 0 0 1 1 41 05 000 00 1 0 0 0 0 0 0 00 06 000 00 1 0 0 0 0 0 0 00 07 00F 0F 0 0 0 0 0 1 1 49 08 00F 0F 0 0 0 0 0 1 1 51 09 00F 0F 0 0 0 0 0 1 1 59 0a 000 00 1 0 0 0 0 0 0 00 is that say that my kernel is too old? thanks! syzhao@xxxxxxxxxxxxx - : send the line "unsubscribe linux-smp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html