Messages in this thread |  | | Date | Sun, 24 Apr 2011 20:55:13 +0200 | | From | Jörg-Volker Peetz <> | | Subject | Re: Linux 2.6.38.4 : regression due to x86 AMD ARAT feature |
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Borislav Petkov wrote, on 04/24/11 20:20: > On Sun, Apr 24, 2011 at 10:06:36AM +0200, Jörg-Volker Peetz wrote: >> With 2.6.38.4 the clock slows down and the affected laptop sometimes, e.g. for >> the output of "ps axuw" to appear, needs an input from the keyboard or the >> touchpad. Please find attached the kernel config file and the output of dmesg. >> >> Commenting out the the lines >> >> if (c->x86 >= 0xf && !cpu_has_amd_erratum(amd_erratum_400)) >> set_cpu_cap(c, X86_FEATURE_ARAT); >> >> in arch/x86/kernel/cpu/amd.c makes this laptop work as before with kernel >> 2.6.38.3. I think these lines came with commit >> d7b7f0c401303dd7eafcff11752fe74d3b75c766. > > Hmm, interesting. > > Can you send also /proc/cpuinfo please? > > Looks like your CPU is a single core K8 revE or something but we'd need > the exact family info. > > Thanks. >
Here it comes:
processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 36 model name : AMD Turion(tm) 64 Mobile Technology MT-40 stepping : 2 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 fxsr_opt lm 3dnowext 3dnow rep_good nopl pni lahf_lm bogomips : 1592.98 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 tm stc
This is a nice mobile processor and i thought it was sold quite a lot. -- Best regards, Jörg-Volker. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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