From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <004801c2df08$90e5b1e0$0400a8c0@pc002> From: "AlessandroPPC" To: Subject: cpu speed Date: Fri, 28 Feb 2003 10:05:39 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Dear all, I 've a MPC8260 board with 2.4.18 kernel version and nfs root fs . First I have configurated it with cpu_clock = 133 MHz, cpm_clock = 100 MHz and bus_clock = 33 Mhz with good results. Then I have changed this configuration with cpu_clock = 166 MHz, cpm_clock = 100 MHz and bus_clock = 33 Mhz with bad results. With cpu clock at 166 Mhz I have several error but typically "Illegal istruction " error message is send on the console. I have checked the bus timing (memory read/write access) with no difference rispect to cpu_clock at 133 MHz. Can be a cache problem ? Tanks to all, Alessandro. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/