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Subject: RE: [SOLVED] RE: 2.6.0-test3 latest bk hangs when enabling IO-APIC
Date: Mon, 18 Aug 2003 21:15:47 -0400
Message-ID: <BF1FE1855350A0479097B3A0D2A80EE009FC78@hdsmsx402.hd.intel.com>
Thread-Topic: [SOLVED] RE: 2.6.0-test3 latest bk hangs when enabling IO-APIC
Thread-Index: AcNl3iKY+5v7Tof2ToGndsU6XE+i+QAEDM8g
From: "Brown, Len" <len.brown@intel.com>
To: "Stian Jordet" <liste@jordet.nu>
Cc: <linux-kernel@vger.kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 2541
Lines: 70

CONFIG_ACPI_HT is mostly just an alias for CONFIG_ACPI_BOOT -- the early
boot part of ACPI without the run-time events included in the full ACPI
implementation.  Unless I screwed up the config dependencies, it should
be impossible to enable the full CONFIG_ACPI without including
CONFIG_ACPI_HT.

When full CONFIG_ACPI is used, the cmdline "acpi=ht" can be used to
revert to just the CONFIG_ACPI_HT behaviour.

The help built into config should explain this clearly, let me know if
it doesn't.

Thanks,
-Len

Ps. The "noapic" flag is actually broken in the baseline kernel in some
cases (ACPI enabled), a fix will come with the next batch...

> -----Original Message-----
> From: Stian Jordet [mailto:liste@jordet.nu] 
> Sent: Monday, August 18, 2003 7:12 PM
> To: Brown, Len
> Cc: linux-kernel@vger.kernel.org
> Subject: Re: [SOLVED] RE: 2.6.0-test3 latest bk hangs when 
> enabling IO-APIC
> 
> 
> tir, 19.08.2003 kl. 01.06 skrev Stian Jordet:
> > man, 18.08.2003 kl. 22.06 skrev Stian Jordet:
> > > man, 18.08.2003 kl. 21.23 skrev Stian Jordet:
> > > > man, 18.08.2003 kl. 19.53 skrev Brown, Len: 
> > > > > Try booting with pci=noacpi, and if that doesn't work acpi=off
> > > > > If either of those work, then file in bugzilla with 
> component=ACPI and
> > > > > assign it to len.brown@intel.com
> > > > 
> > > > It works when booting with noapic, but not with 
> acpi=off nor pci=noapic.
> > > > Does that mean I can't blame you for it?
> > > 
> > > Just to confuse myself (and whoever reading my mails). 
> When I disabled
> > > the second onboard ide-port, the kernel booted, but usb 
> didn't work.
> > > Absolutely no problem what so ever with -test3.
> > 
> > I had to enable CONFIG_ACPI_HT=y. But you must have screwed 
> something
> > up, since my P3's really, really don't have any Hyper 
> Threading :) ACPI
> > was already enabled, and from the help texts, there shouldn't be any
> > difference with ACPI_HT then. Nevermind, I'm happy :)
> 
> Sorry for spamming, but when I think of it, I don't think acpi is
> enabled at all without the CONFIG_ACPI_HT. Because my 
> computer actually
> uses to hang when enabling io-apic without acpi support enabled (in
> other words, my pc is useless without acpi enabled).
> 
> Once again, sorry for flooding.
> 
> Best regards,
> Stian
> 
> 
-
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