RE: 2.6.18-rc4-mm2

["Moore, Robert" <robert.moore@intel.com>]

If the status returned by the user function called from
acpi_walk_resources returns non-zero status, this status is returned
immediately.

I would guess that this is the origin of the unknown exception.
Bob

> -----Original Message-----
> From: linux-acpi-owner@vger.kernel.org [mailto:linux-acpi-
> owner@vger.kernel.org] On Behalf Of Grant Wilson
> Sent: Tuesday, August 22, 2006 11:59 AM
> To: Len Brown
> Cc: Maciej Rutecki; Andrew Morton; linux-kernel@vger.kernel.org;
linux-
> acpi@vger.kernel.org
> Subject: Re: 2.6.18-rc4-mm2
> 
> On Mon, Aug 21, 2006 at 07:22:09PM -0400, Len Brown wrote:
> > Please dump the stack so we can find the secretive caller to
> > acpi_format_exception().
> 
> I get three of these when booting and the output from dump_stack
> is the same for each.  I've observed no problems as a result of
> these reported failures.  Here is the output from the first call
> of dump_stack:
> 
> Aug 22 19:39:33 tlg kernel: ACPI Error (utglobal-0125): Unknown
exception
> code: 0xFFFFFFEA [20060707]
> Aug 22 19:39:33 tlg kernel:
> Aug 22 19:39:33 tlg kernel: Call Trace:
> Aug 22 19:39:33 tlg kernel:  [<ffffffff80267cb8>]
dump_trace+0xba/0x39e
> Aug 22 19:39:33 tlg kernel:  [<ffffffff80267fd8>] show_trace+0x3c/0x52
> Aug 22 19:39:33 tlg kernel:  [<ffffffff80268003>] dump_stack+0x15/0x17
> Aug 22 19:39:33 tlg kernel:  [<ffffffff803c8d10>]
> acpi_format_exception+0xc0/0xcb
> Aug 22 19:39:33 tlg kernel:  [<ffffffff803c54e5>]
> acpi_ut_status_exit+0x38/0x73
> Aug 22 19:39:33 tlg kernel:  [<ffffffff803c11a0>]
> acpi_walk_resources+0x12e/0x140
> Aug 22 19:39:33 tlg kernel:  [<ffffffff803d85e5>]
> acpi_motherboard_add+0x26/0x32
> Aug 22 19:39:33 tlg kernel:  [<ffffffff803d73d7>]
> acpi_bus_driver_init+0x3a/0x98
> Aug 22 19:39:33 tlg kernel:  [<ffffffff803d796c>]
> acpi_bus_register_driver+0xbd/0x144
> Aug 22 19:39:33 tlg kernel:  [<ffffffff807dcbd4>]
> acpi_motherboard_init+0x10/0x130
> Aug 22 19:39:33 tlg kernel:  [<ffffffff802668f1>] init+0x13b/0x313
> Aug 22 19:39:33 tlg kernel:  [<ffffffff8025dba8>] child_rip+0xa/0x12
> Aug 22 19:39:33 tlg kernel: DWARF2 unwinder stuck at
child_rip+0xa/0x12
> Aug 22 19:39:33 tlg kernel: Leftover inexact backtrace:
> Aug 22 19:39:33 tlg kernel:  [<ffffffff802632ae>]
> _spin_unlock_irq+0x2b/0x53
> Aug 22 19:39:33 tlg kernel:  [<ffffffff8025d300>]
restore_args+0x0/0x30
> Aug 22 19:39:33 tlg kernel:  [<ffffffff80215fed>]
> release_console_sem+0x4d/0x238
> Aug 22 19:39:33 tlg kernel:  [<ffffffff802667b6>] init+0x0/0x313
> Aug 22 19:39:33 tlg kernel:  [<ffffffff8025db9e>] child_rip+0x0/0x12
> 
> Cheers,
> Grant
> 
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