Subject: Re: Box freezes if I enable "AMD 76x native power management"
From: Paul Giordano <giordano@covad.net>
To: linux-kernel@vger.kernel.org
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Message-Id: <1046142808.24476.42.camel@tyan.crapulence.org>
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Date: 24 Feb 2003 21:13:29 -0600
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Just another voice in the crowd...

TYAN 2462 dual 1200MP, and another w/ dual 1900MP
Dual WD100 IDE, seperate channels
Current BIOS 2.13
1GB RAM

I noticed this behavior when I started playing with 2.4.20 and could
never figger it out - went so far as to bring up KGDB and was way down
in the IDE DMA code, scary stuff... Kept scanning LKML and finally found
this gem of a thread...

Ran up a clean, fresh kernel from pre4-ac5, four combos
1) CONFIG_AMD_PM768=Y CONFIG_BLK_DEV_IDEDMA_PCI=y
2) CONFIG_AMD_PM768=m CONFIG_BLK_DEV_IDEDMA_PCI=y
3) CONFIG_AMD_PM768=Y CONFIG_BLK_DEV_IDEDMA_PCI is not set
4) CONFIG_AMD_PM768=m CONFIG_BLK_DEV_IDEDMA_PCI is not set

In cases 1 and 3, hang at boot, pressing the power button frees it up.
In cases 2 and 4, no boot hang, and, at lease for me, no hang when
amd76x_pm module's loaded

So, back to playing - if you need some testing on this board, let me
know - I use one at work and one at home, takes no time at all to gen up
and try things out, and they'll get pretty good exercise.

Regards,
Gio

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