Messages in this thread |  | | Date | Sun, 24 Apr 2011 20:20:41 +0200 | | From | Borislav Petkov <> | | Subject | Re: Linux 2.6.38.4 : regression due to x86 AMD ARAT feature |
| |
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.
-- Regards/Gruss, Boris. -- 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/
|  |