Earliest failing kernel version: not known, first noticed on 2.6.22 Distribution: Debian Hardware environment: AMD Athlon64 laptop Problem Description: When this laptop is run on battery, the following error is logged: May 23 15:55:41 jpc kernel: [ 38.255997] powernow-k8: error - out of sync, fix 0x8 0x0, vid 0x6 0x12 Under kernel versions 2.6.22 and 2.6.24, the system eventually hangs, displaying the above error on the console. Under kernel 2.6.25, the hang has so far occurred only during shutdown (prior to unmounting file systems). I can carry out more testing if necessary. Since I don't run this laptop frequently on battery, I don't know when the problem was introduced; it was probably after the 2.6.18 kernel at some point, and definitely before 2.6.22. The laptop has worked on battery in the past with the 2.6 kernel series and powernow-k8 loaded. Steps to reproduce: 1. Load the powernow-k8 module (in my case, this happens during boot as I have selected the ondemand CPU frequency governor). 2. Run the machine on battery rather than from AC power. History of bug: detected and tested with Debian kernels, reported as Debian bug 464664: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=464664 Debian kernel maintainers requested that it be reported upstream (see the Web page cited above) after it was found to occur with the latest Debian 2.6.25 kernel release. /proc/cpuinfo: processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 4 model name : AMD Athlon(tm) 64 Processor 3000+ stepping : 10 cpu MHz : 800.000 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow up rep_good bogomips : 1597.95 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp I also notice the following, which may or may not be related: modprobe acpi Error inserting acpi_cpufreq (/lib/modules/2.6.25-2-amd64/kernel/arch/x86 /cpu/cpufreq/acpi-cpufreq.ko): Device or resource busy
Would it be possible for you to test kernels from 2.6.18 to 2.6.23 to see when the error was introduced? The error code you're seeing has been in the driver since the 1st version and has not changed in years. Getting a clearer idea of what caused the problem could be useful.
I'm also experiencing a similar issue with my desktop running the same processor. uname: Linux A64 2.6.28-16-generic #55-Ubuntu SMP Tue Oct 20 19:48:24 UTC 2009 i686 GNU/Linux cpuinfo: processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 4 model name : AMD Athlon(tm) 64 Processor 3000+ stepping : 10 cpu MHz : 1800.000 cache size : 512 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 vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow up bogomips : 3618.31 clflush size : 64 power management: ts fid vid ttp
Closing as obsolete, if this is incorrect please reopen and update giving a modern kernel showing the problem, thanks