Date: Sat, 1 Apr 2006 14:54:26 -0500 From: "Scott Lipcon" <slipcon@gmail.com> To: "Nate Lawson" <nate@root.org> Cc: freebsd-acpi@freebsd.org Subject: Re: ACPI blacklist - important? Message-ID: <580cd3b30604011154h3cccb0a4ub5a12a73f2e1756a@mail.gmail.com> In-Reply-To: <442ED3FB.6030904@root.org> References: <580cd3b30603312143o4edc0dd7q667e7e3c578a114c@mail.gmail.com> <442ED3FB.6030904@root.org>
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On 4/1/06, Nate Lawson <nate@root.org> wrote:
>
> Scott Lipcon wrote:
> > Hi,
> >
> > I've got a question, and I have to admit I really don't know much about
> > ACPI, but I'd appreciate any advice.
> >
> > My email server was an Athlon XP running FreeBSD 5.4-STABLE, and the
> > motherboard died. I put the disks in an old machine, which is an ASUS
> P2D-B
> > board, dual 350Mhz PII. It panic'ed on boot, saying the ACPI
> implementation
> > was on the blacklist. I was able to figure out how to disable the
> blacklist
> > check ("set hint.acpi.0.disabled=3D0") and it booted up and seems to be
> > running OK.
>
> If you upgrade the BIOS, the message will likely go away.
I'm running the 2nd latest BIOS - the board is quite old, and the latest
BIOS is 4 years old. The change log doesn't say anything useful.
The blacklist check should NOT panic, it should just boot with acpi
> disabled. So please give the panic message and any associated info
> (i.e. trap frame).
I wrote it down so this might not be exactly right, but its close:
ACPI APIC table (ASUS P2B D)
ACPI Disabled by blacklist. Contact BIOS vendor
MADT: ACPI startup failed with AE_ERROR
Try disabling either ACPI or apic support.
panic. Using MADT but ACPI doesn't work.
> My question is - what is the side-effect of having this blacklisted ACPI
> > implementation running? My kernel is a single CPU kernel (since my
> Athlon
> > was only single CPU) so if the lack of SMP has any effect I'd like to
> know.
> > Specifically, is this setup likely to be stable? I'm certainly
> planning on
> > replacing the Athlon motherboard with a new board/CPU, but I'm going ou=
t
> of
> > town this week and probably wont have time to get replacement parts
> before I
> > leave, and I'd really like to have some confidence that my email server
> will
> > stay up while I'm gone.
>
> Different machines are blacklisted for various reasons. I believe the
> ASUS P2* series had a bad interrupt routing table, possibly for the SCI.
> That would mean that it could be unstable with acpi *enabled*. So
> disabling acpi should be perfectly safe, stable, etc. That's what the
> blacklist entry is supposed to do. We need to fix the panic problem, so
> please provide that info when you get a chance.
Perhaps this is related then - when I disabled the blacklist check, and it
didn't panic, during the boot I get:
Timecounter "TSC" frequency 350797176 Hz quality 800
Timecounters tick every 10.000 msec
Interrupt storm detected on "irq20: acpi0"; throttling interrupt source
Since then, no related messages, and the system seems to be running OK (15
hr uptime).
This is a dual CPU board, but since I'm booting it from the disk from my
athlon, its a single processor kernel - would that have any affect on its
stability? I can provide my kernel config if anyone can suggest changes =
-
like I said, I most concerned that it stay up for the next two weeks.
thanks,
Scott
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