From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id BAFFAB7165 for ; Fri, 12 Jun 2009 01:24:27 +1000 (EST) Received: from sj-iport-4.cisco.com (sj-iport-4.cisco.com [171.68.10.86]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "sj-iport-4.cisco.com", Issuer "Cisco SSCA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 0DA53DDD01 for ; Fri, 12 Jun 2009 01:24:26 +1000 (EST) Received: from sj-core-4.cisco.com (sj-core-4.cisco.com [171.68.223.138]) by sj-dkim-4.cisco.com (8.12.11/8.12.11) with ESMTP id n5BFDukI031830 for ; Thu, 11 Jun 2009 08:13:56 -0700 Received: from sj-webmail-9.cisco.com (sj-webmail-9.cisco.com [171.71.183.158]) by sj-core-4.cisco.com (8.13.8/8.13.8) with ESMTP id n5BFDusL004748 for ; Thu, 11 Jun 2009 15:13:56 GMT Received: from sj-webmail-9.cisco.com (localhost.localdomain [127.0.0.1]) by sj-webmail-9.cisco.com (8.13.1/8.13.1) with ESMTP id n5BFDuJw015688 for ; Thu, 11 Jun 2009 08:13:56 -0700 Received: from sj-webmail-9 (root@localhost) by sj-webmail-9.cisco.com (8.13.1/8.13.1/Submit) with ESMTP id n5BFDtmt015687 for ; Thu, 11 Jun 2009 08:13:56 -0700 Date: Thu, 11 Jun 2009 08:13:54 -0700 From: Subodh Nijsure To: Message-ID: <008701c9eaa7$3c8336c0$8dde520a@cisco.com> Subject: System clock systems to be twice as fast as RTC MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I am running system with kernel 2.6.10 with following cpuinfo sh-2.05b# cat /proc/cpuinfo processor : 0 cpu : 440 in Virtex-5 FXT clock : 200MHz revision : 25.18 (pvr 7ff2 1912) bogomips : 296.96 machine : Xilinx ML507 PPC440 evaluation board plb bus clock : 100MHz The system clock seems to be running twice as as fast as RTC, sh-2.05b# date ; sleep 60 ; date Fri Sep 11 01:37:11 UTC 1970 Fri Sep 11 01:37:41 UTC 1970 sh-2.05b# date ; sleep 60 ; date Fri Sep 11 01:38:21 UTC 1970 Fri Sep 11 01:38:51 UTC 1970 sh-2.05b# date ; sleep 60 ; date Fri Sep 11 01:38:59 UTC 1970 Fri Sep 11 01:39:29 UTC 1970 I have tried various values of CONFIG_HZ and that didn't help. Google searches has shown up this issue on X86 system but not on PPC. Any hints as to what I should be looking for? I have included relevant portion of config file.. /Subodh CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_ASM_SEMAPHORES=y CONFIG_HAVE_DEC_LOCK=y CONFIG_PPC=y CONFIG_PPC32=y CONFIG_GENERIC_NVRAM=y CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y CONFIG_LOCK_KERNEL=y CONFIG_LOCALVERSION="" CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SEMMNI=128 CONFIG_SYSVIPC_SEMMSL=250 CONFIG_POSIX_MQUEUE=y CONFIG_SYSCTL=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_HOTPLUG=y CONFIG_KOBJECT_UEVENT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_KALLSYMS=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 CONFIG_LTT_MAX_HANDLES=128 CONFIG_LOCKLESS=y CONFIG_BOOT_FLIGHT_BUFFERS=4 CONFIG_BOOT_FLIGHT_SIZE=524288 CONFIG_FLIGHT_PROC_BUFFERS=8 CONFIG_FLIGHT_PROC_SIZE=8192 CONFIG_NEWEV=y CONFIG_CSTM=y CONFIG_CREATE_DEV_CONSOLE=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_OBSOLETE_MODPARM=y CONFIG_KMOD=y CONFIG_44x=y CONFIG_BOOKE=y CONFIG_PTE_64BIT=y CONFIG_PHYS_64BIT=y CONFIG_MATH_EMULATION=y CONFIG_4xx=y CONFIG_XILINX_ML507=y CONFIG_XILINX_OCP=y CONFIG_XILINX_VIRTEX_5_FX=y CONFIG_XILINX_VIRTEX=y CONFIG_EMBEDDEDBOOT=y CONFIG_PPC_GEN550=y CONFIG_UART0_TTYS0=y CONFIG_NOT_COHERENT_CACHE=y CONFIG_PREEMPT_DESKTOP=y CONFIG_PREEMPT=y CONFIG_PREEMPT_BKL=y CONFIG_HIGH_RES_TIMERS=y CONFIG_BINFMT_ELF=y CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="console=ttyS0,9600n8 initrd=0x1800000,32M rw root=/dev/ram ip=$(ipaddr)::(gatewayip):$(subnetmask)::eth0:none eth=$(ethaddr)"