Re: Box freezes if I enable "AMD 76x native power management"

Thomas Hofer
2003-02-22T22:14:05Z

On Saturday 22 February 2003 19:53, John W. M. Stevens wrote:
> On Sat, Feb 22, 2003 at 04:30:57PM +0300, Oleg Drokin wrote:
> > Starting from 2.4.20 until now (including 2.4.21-pre4 and
> > 2.4.21-pre4-ac5", whenever I enable "AMD 76x native power
> > management" in my kernel config, I get kernel that hangs at boot
> > after reporting elevator stuff about my IDE drives. Is anybody
> > interested?
> [..]
> 1) Exact Mother board (Tyan what? Tiger MPX 2466N . . . ?)
> 2) Do you have DMA turned on for your IDE drives?
> 3) Are you enabling the AMD chip support for IDE?
>
> . . . and anything else you can find out about the box?
>
> Most importantly . . . does the problem go away if you turn off DMA
> support for IDE?

I have some problems with this hardware, too. Maybe I can provide some
useful bugreports - I'd gladly do some tests with the 2.4.x kernels if
someone is interested (I only tried 2.4.19 and 2.4.20 with this
hardware so far).

I have a Tyan S2466N-4M (Tiger MPX, Chipset AMD 760MPX, 762, 768),
2x Athlon MP 2000+,
512MB Reg. ECC SDRAM
2-3 IDE drives and a DVD-ROM on the onboard channels
DMA support enabled (I don't like to disable this, because when I copy
over 100MB from the DVD to a harddrive with DMA disabled the cpu-usage
wents well above 50% and then the machine _freezes_.)

With 2.4.19, the power-switch didn't work after shutdown (It works now
with 2.4.20). Automatic power-off (halt -p) doesn't work with neighter
2.4.19 nor 2.4.20.

With "AMD 76x native power management" I experienced freezes under X11
when the system was idle for about 30 min that usually went away when I
typed on the keyboard. Using the (USB) mouse had no effect. But I had
no problems at boot-time.

Thomas.