Hi!! I am gettig messages no more mtrr avaiable.... and my /proc/mtrr have following output reg00: base=0x3ff00000 (1023MB), size= 1MB: uncachable, count=1 reg01: base=0x00000000 ( 0MB), size=1024MB: write-back, count=1 Can any one tell me what does that mean ?? And this is system is loosing some packets..due to receive overruns.(while running click) .and i am sure its not because of pci or NIC . Can that problem be somewhere related to this.. I am running kernel version 2.4.18 on Pentium 4 2.53 Ghz Shilpi Agarwal Graduate Student Dept of Electrical Engineering University of Wisconsin Madison-53706 phone:608-233-3714 - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html