RE: one more ACPI Error (utglobal-0125): Unknown exception code: 0xFFFFFFEA [Re: 2.6.18-rc4-mm3]

From: Li, Shaohua
Date: Mon Aug 28 2006 - 22:03:30 EST




>-----Original Message-----
>From: linux-kernel-owner@xxxxxxxxxxxxxxx [mailto:linux-kernel-
>owner@xxxxxxxxxxxxxxx] On Behalf Of Mattia Dongili
>Sent: Tuesday, August 29, 2006 4:24 AM
>To: Andrew Morton
>Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-acpi@xxxxxxxxxxxxxxx
>Subject: one more ACPI Error (utglobal-0125): Unknown exception code:
>0xFFFFFFEA [Re: 2.6.18-rc4-mm3]
>
>On Sat, Aug 26, 2006 at 04:09:22PM -0700, Andrew Morton wrote:
>>
>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-
>rc4/2.6.18-rc4-mm3/
>[...]
>> git-acpi.patch
>
>Sorry for reporting separately, I deleted the other thread on the
issue.
>Here we go:
>[ 9.386644] PCI: Using ACPI for IRQ routing
>[ 9.386688] PCI: If a device doesn't work, try "pci=routeirq". If
it
>helps, post a report
>[ 9.391209] ACPI Error (utglobal-0125): Unknown exception code:
>0xFFFFFFEA [20060707]
>[ 9.391521] [<c0103a9f>] dump_trace+0x1ef/0x230
>[ 9.391626] [<c0103b06>] show_trace_log_lvl+0x26/0x40
>[ 9.391724] [<c01042bb>] show_trace+0x1b/0x20
>[ 9.391820] [<c01043a4>] dump_stack+0x24/0x30
>[ 9.391918] [<c0249f15>] acpi_format_exception+0xa3/0xb0
>[ 9.392729] [<c0246fb6>] acpi_ut_status_exit+0x31/0x5e
>[ 9.393453] [<c0243352>] acpi_walk_resources+0x10e/0x11b
>[ 9.394174] [<c025697e>] acpi_motherboard_add+0x22/0x31
>[ 9.394977] [<c0255890>] acpi_bus_driver_init+0x2b/0x7c
>[ 9.395742] [<c02568da>] acpi_bus_register_driver+0xa1/0x123
>[ 9.396507] [<c0418adb>] acpi_motherboard_init+0x17/0xfb
>[ 9.397268] [<c01003d0>] init+0x80/0x290
>[ 9.397343] [<c0103593>] kernel_thread_helper+0x7/0x14
>[ 9.397439] =======================
>
>full dmesg: http://oioio.altervista.org/linux/dmesg-2.6.18-rc4-mm3-1
>config: http://oioio.altervista.org/linux/config-2.6.18-rc4-mm3-1
>DSDT: http://oioio.altervista.org/linux/DSDT.aml
> http://oioio.altervista.org/linux/DSDT.dsl
>lspci: http://oioio.altervista.org/linux/lspci-v
Below patch is the root cause.
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc
4/2.6.18-rc4-mm3/broken-out/hot-add-mem-x86_64-acpi-motherboard-fix.patc
h

motherboard driver is expected to reserve resources used by motherboard,
so hotplug will not fail. I don't know why memory hotplug guys change
it.

Thanks,
Shaohua
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