From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulrich Dobramysl Subject: Gericom Supersonic ACPI hang (smi_cmd) Date: Fri, 11 Oct 2002 17:52:39 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <3DA6F3C7.3040108@gmx.at> Reply-To: Ulrich Dobramysl Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hello there again! I posted some days ago, that I have problems getting ACPI up and running on my Gericom Laptop. The Kernel just hangs without any error message. Arndt Schoenewald suggested some Kernel Configurations to me (thanks again!) , but none of them did work. It seems like I have a very rare Version of this laptop model, with a (very) broken BIOS. So I tried to debug that myself. I'm not a very good C Programmer and have no clue about the ACPI specifications, so I cannot solve this problem myself. I was able to trace down the hang where acpi_enable gets called and itself calls acpi_hw_set_mode. This goes into the function acpi_os_write_port(acpi_gbl_FADT->smi_cmd, (acpi_integer) acpi_gbl_FADT->acpi_enable, 8), where outb gets called with port acpi_gbl_FADT->smi_cmd and value acpi_gbl_FADT->acpi_enable. I think there is something wrong with the address smi_cmd. I could not find the part in the code where it gets set. Tell me if I can provide more information about this problem or something. Ulrich Dobramysl ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf