From mboxrd@z Thu Jan 1 00:00:00 1970 From: chris stones Subject: cpu-freq causing kernel lock-up after upgrading to 1GB ram. Date: Sun, 15 May 2005 17:37:05 +0100 Message-ID: <42877AB1.8050100@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@lists.linux.org.uk Content-Type: text/plain; charset="us-ascii"; format="flowed" To: cpufreq@lists.linux.org.uk This is my first attempt at a bug report, so forgive me for making a mess, I will try my best. ------------------------- hardware: ------------------------- mobo: Chaintech VNF3-250 chipset: nForce-3 CPU: amd64 Athlon 3400+ Ram: 2 * Kingston 512Meg DDR400 PC3200 2T timeing 3-3-8-3. (total 1GB) Swap : 1.3 Gb. -------------------------- software: -------------------------- Distro: Gentoo 2005.0 (comiped as 64bit with multilib) GCC: gcc version 3.4.3 20041125 (Gentoo Linux 3.4.3-r1, ssp-3.4.3-0, pie-8.7.7) kernel versions: gentoo 2.6.11-r7; vanilla-2.6.10; vanilla-2.6.11.9 -------------------------- description: -------------------------- I have been using the modules freq_table, cpufreq_ondemand, powernow_k8 to regulate my cpu clock for over 6 months with the hardware configureation shown above, minus one 512meg ram module. Recently, i shutdown the box, and added the second memory module. At the time, the cpu_fre drivers were compiled into the kernel, shortly after booting, the system would freese when cpu_freq lowered my cpu to its idle state of 1Ghz. These conditions must all be met to cause the lock-up. 1) Both Ram moodules are used (1GB ram) 2) the modules freq_table, cpufreq_ondemand, powernow_k8 are loaded. 3) The lockup occurs when the cpu is slowing down from a period of heavy load. 2 hours running memtest86 shows that my memory is not the problem. one one occasion, the kernel gave a memory dump before the freeze. i regret i didnt take note of its rull contents, but a function trace line mentioned a cpu_freq function call. If i remove one of the 512meg memory modules, the cpu_freq performsperfectly, as it has for the past 6 months. Thankyou for taking the time to read my post. Is there anything i can do (other than go without ram or cpu_freq) to solve this ? is there any more information you require from me ? I have googled, but found no other similar bug reports. From Chris.stones@gmail.com.