Re: PROBLEM: Can't boot a (HZ = 1000) kernel using an AMD Phenom-II processor

john stultz
2009-01-20T00:25:51Z

On Sun, Jan 18, 2009 at 4:38 AM, Mark Hounschell <dmarkh@cfl.rr.com> wrote:
> I upgraded from a Phenom to a Phenom-II processor and I could no longer boot.
>
> I have tried kernels from 2.6.26 through 2.6.28.
>
> I _can_ however boot these kernels when they are configured for HZ = 250. I
> haven't tried HZ = 300. But certainly if HZ = 1000 the boot hangs at the spot
> indicated below in the dmesg output.
>
> The machine is up and stable running 2.6.26.8 with a (HZ = 1000) configured kernel.
>
> While running a 2.6.26.8 kernel configured for HZ = 250:
[snip]
> vmalloc : 0xf4800000 - 0xff7fe000 ( 175 MB)
> lowmem : 0xc0000000 - 0xf4000000 ( 832 MB)
> .init : 0xc0373000 - 0xc03a9000 ( 216 kB)
> .data : 0xc02b5336 - 0xc036c6d0 ( 732 kB)
> .text : 0xc0100000 - 0xc02b5336 (1748 kB)
> Checking if this processor honours the WP bit even in supervisor mode...Ok.
>
>
> The 2.6.26.8 kernel hangs up right here.
>
>
> CPA: page pool initialized 1 of 1 pages preallocated
> SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
> hpet clockevent registered
> calibrate_delay_direct() failed to get a good estimate for loops_per_jiffy.

This looks suspect. Probably something is off with the timer
interrupt, that's causing the calibration to be way off.

Does booting with hpet=disable change anything?

thanks
-john