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Date:      Tue, 7 Feb 2006 12:37:31 -0600
From:      "Donald J. O'Neill" <duncan.fbsd@gmail.com>
To:        freebsd-acpi@freebsd.org
Subject:   Re: Kernel panic with ACPI enabled
Message-ID:  <200602071237.31791.duncan.fbsd@gmail.com>
In-Reply-To: <200602071048.56326.jhb@freebsd.org>
References:  <43E7D1A2.1030008@o2.pl> <43E8B8CB.2060703@o2.pl> <200602071048.56326.jhb@freebsd.org>

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On Tuesday 07 February 2006 09:48, John Baldwin wrote:
> On Tuesday 07 February 2006 10:12, Przemys=B3aw Celej wrote:
> > John Baldwin wrote:
> > > On Monday 06 February 2006 17:45, Przemys=B3aw Celej wrote:
> > >> Hi,
> > >>
> > >> Since I'm using FreeBSD 5.X and 6.X I've got seriously problem
> > >> with ACPI. When I setup ACPI as module, I've got panic soon
> > >> after kernel recognize processor:
> > >> pmap_mapdev: Couldn't alloc kernel virtual memory
> > >>
> > >> *but* on GENERIC kernel ACPI works without any problems. I'm
> > >> convinced that, this problem is depending on hardware (actually
> > >> only on motherboard).
> > >>
> > >> Please help me, I need ACPI enabled.
> > >>
> > >> Environment:
> > >> System version: FreeBSD-6.0 (but this problem steps out on
> > >> FreeBSD 5.X also) Motherboard: Abit NF7-S (on nforce2 chipset)
> > >> Memory: 512MB DDR (333Mhz)
> > >> Hard drive: Seagate V 60GB/ATA100
> > >> Processor: AMD Athlon2500+/333Mhz
> > >
> > > What kernel are you using that breaks?  Is it a custom kernel
> > > config?
> >
> > Yes, here is the config (currently I'm using FreeBSD 6.0):
> > http://80.50.250.246/siano/forum/SYS-acpi-as-module.txt
> >
> > When I compile acpi directly into the kernel, I've got panic with
> > the same message as above (pmap_mapdev...).
> > Unfortunately I can't do backtrace, because kernel didn't mount
> > disk *before* panic, I will try to move function responsible for
> > mounting root device before pmap_mapdev().
>
> You can get a backtrace if you include DDB in your kernel and use
> 'tr' at the db> prompt after the panic.  It might be easier to
> capture it if you can setup a serial console.
>
> Also, you probably don't want the NO_MEMORY_HOLE (only applies to K6
> CPUs, you have an Athlon (K8)),  CPU_UPGRADE_HW_CACHE (only applies
> to PC-98 machines in Japan), CPU_FASTER_5X86_FPU (only applies to
> Cyrix 5x86 CPUs), or CPU_SUSP_HLT (only applies to Cyrix CPUs)
> options.  You probably don't want the CPU_ATHLON_SSE_HACK unless you
> really need it as well, though it won't hurt.  Also, try removing the
> 'MAXMEM' option and letting the kernel figure out the mappings from
> the BIOS.  This might actually be the source of the panic since the
> kernel might be corrupting the ACPI tables due to the MAXMEM option.
>
> > Sorry, if my english is terrible, but I come from Poland.
> > Regards.
>
> It's not terrible at all. :)

I have a few things. Is there a reason you have 'device apm'? Are you=20
trying to use APM and ACPI at the same time? Why do you have 'device=20
isa' rather than 'device eisa'? Where you, by any chance, just re-using=20
your conf file from 5.x? It kind of looks that way. Have you looked at=20
i386/conf/NOTES? There is some more information in there.

Don



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