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

On Sat, Feb 22, 2003 at 11:53:29AM -0700, John W. M. Stevens 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?
> I am. This sounds suspiciously like the bug I reported.


> But you haven't given quite enough information for me to compare. Can
> you send:
> 1) Exact Mother board (Tyan what? Tiger MPX 2466N . . . ?)

Tyan Tiger MP (bios v1.03)

> 2) Do you have DMA turned on for your IDE drives?

Yes. Tried to boot with "ide=nodma". It hung too, but
first emitted about set_drive_speed_blah: ... error messages.

> 3) Are you enabling the AMD chip support for IDE?

Yes. I tried to disable "AMD Viper" IDE support in kernel,
but that did not help.

> . . . and anything else you can find out about the box?

Well, dual cpu athlon 1700+, 1G RAM. 2 IDE disks on primary channel.
Geforce3 video card. Some cheap cmpci sound board.
That's it.

> Most importantly . . . does the problem go away if you turn off DMA
> support for IDE?


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