Date: Sun, 14 Oct 2001 22:47:21 -0700 From: Mike Smith <msmith@freebsd.org> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: ia64@FreeBSD.ORG, Andrew.Grover@intel.com Subject: Re: Faulty ACPI debug code [was: Re: Booting a dual ...] Message-ID: <200110150547.f9F5lLx04912@mass.dis.org> In-Reply-To: Your message of "Sun, 14 Oct 2001 22:31:34 PDT." <20011014223134.A543@dhcp01.pn.xcllnt.net>
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I've copied the Intel ACPI CA folks on this, since I'm sure they'll be
interested.
Thanks!
> On Sun, Oct 14, 2001 at 09:12:43PM -0700, Marcel Moolenaar wrote:
> > It helps to actually attach the trace...
> >
> > fatal kernel trap:
> >
> > trap vector = 0x1e (Unaligned Reference)
> > cr.iip = 0xe00000000053e590
> > cr.ipsr = 0x121008022010 (mfl,ic,dt,rt,cpl=0,it,ri=1,bn)
> > cr.isr = 0x20400000000 (r,ei=1)
> > cr.ifa = 0xc00000007fe9663f
> > cr.iim = 0xcf
> > curthread = 0xe000000000b5b1c8
> > pid = 0, comm = swapper
> >
> > Stopped at AcpiDsGetRegionArguments+0x141: ld4 r48=[r47]
>
> I located the spot. It's in /sys/contrib/dev/acpi/dsopcode.c:325:
>
> ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Init at AML %p[%x]\n",
> &Node->Name, ExtraDesc->Extra.AmlStart,
> *(UINT32*) ExtraDesc->Extra.AmlStart));
>
> AmlStart is defined as a pointer to UINT8, so it looks like faulty
> debug code...
>
> I'll remove ACPI_DEBUG from my kernel config file and try again when
> I get a chance.
>
> --
> Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net
>
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