Messages in this thread Patch in this message | | | Date | Tue, 02 Dec 2008 19:36:07 +0100 | From | Harald Dunkel <> | Subject | 2.6.27.7 built for Geode: Clock drift |
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Hi folks,
If I build a kernel for AMD Geode, then I see a clock drift of appr. 30 min. to 1 hour per day. If I build the same kernel for i486, then the clock drift is gone. Running ntp makes no difference.
Hardware is a Linutop PC. /proc/cpuinfo says
processor : 0 vendor_id : AuthenticAMD cpu family : 5 model : 10 model name : Geode(TM) Integrated Processor by AMD PCS stepping : 2 cpu MHz : 0.000 cache size : 128 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu de pse tsc msr cx8 sep pge cmov clflush mmx mmxext 3dnowext 3dnow bogomips : 429.05 clflush size : 32 power management:
BTW, the CPU is running with 500 MHz (AFAIK). 0.000 MHz is surely not correct. /proc/cpuinfo reports the same for both kernels.
Attached is the diff of the config files. Please mail if you are interested in the complete config files, or if I can help to track this down.
Regards
Harri --- config-2.6.27.7-486 2008-12-02 03:36:11.000000000 +0100 +++ config-2.6.27.7-geode 2008-11-23 10:46:54.000000000 +0100 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.27.7 -# Mon Dec 1 22:42:26 2008 +# Sun Nov 23 05:01:04 2008 # # CONFIG_64BIT is not set CONFIG_X86_32=y @@ -56,7 +56,7 @@ CONFIG_EXPERIMENTAL=y CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 -CONFIG_LOCALVERSION="-486" +CONFIG_LOCALVERSION="-geode" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_SWAP=y CONFIG_SYSVIPC=y @@ -197,7 +197,7 @@ # CONFIG_PARAVIRT_DEBUG is not set # CONFIG_MEMTEST is not set # CONFIG_M386 is not set -CONFIG_M486=y +# CONFIG_M486 is not set # CONFIG_M586 is not set # CONFIG_M586TSC is not set # CONFIG_M586MMX is not set @@ -215,7 +215,7 @@ # CONFIG_MWINCHIP2 is not set # CONFIG_MWINCHIP3D is not set # CONFIG_MGEODEGX1 is not set -# CONFIG_MGEODE_LX is not set +CONFIG_MGEODE_LX=y # CONFIG_MCYRIXIII is not set # CONFIG_MVIAC3_2 is not set # CONFIG_MVIAC7 is not set @@ -227,15 +227,16 @@ CONFIG_X86_CMPXCHG=y CONFIG_X86_L1_CACHE_SHIFT=7 CONFIG_X86_XADD=y -# CONFIG_X86_PPRO_FENCE is not set -CONFIG_X86_F00F_BUG=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y -CONFIG_X86_ALIGNMENT_16=y CONFIG_X86_INTEL_USERCOPY=y +CONFIG_X86_USE_PPRO_CHECKSUM=y +CONFIG_X86_USE_3DNOW=y +CONFIG_X86_TSC=y CONFIG_X86_MINIMUM_CPU_FAMILY=4 +CONFIG_X86_DEBUGCTLMSR=y CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_DMI=y @@ -423,6 +424,7 @@ # CONFIG_MCA_PROC_FS is not set CONFIG_SCx200=m CONFIG_SCx200HR_TIMER=m +CONFIG_GEODE_MFGPT_TIMER=y # CONFIG_OLPC is not set CONFIG_K8_NB=y # CONFIG_PCCARD is not set @@ -1919,6 +1921,7 @@ CONFIG_ADVANTECH_WDT=m CONFIG_ALIM1535_WDT=m CONFIG_ALIM7101_WDT=m +CONFIG_GEODE_WDT=m CONFIG_SC520_WDT=m CONFIG_EUROTECH_WDT=m CONFIG_IB700_WDT=m | |