From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Smolik Subject: Re: Thinkpad A21m oops when go to sleep second time Date: Mon, 18 Jul 2005 00:18:36 +0200 Message-ID: <42DAD93C.4060602@mydatex.cz> References: <16A54BF5D6E14E4D916CE26C9AD3057502A49971@pdsmsx402.ccr.corp.intel.com> <42D62E48.3030306@mydatex.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <42D62E48.3030306-0pWKB23IDFjrBKCeMvbIDA@public.gmane.org> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Daniel Smolik Cc: "Li, Shaohua" , Matthew Garrett , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Daniel Smolik napsal(a): > Li, Shaohua napsal(a): > >> Hi, >> >>>> [] uart_suspend_port+0xde/0xf0 >>> >>> >>> This is in the serial code. The problem seems to be that not all serial >>> ports are found on resume. Take a look at the following boot-time dmesg >>> output: >>> >>> [4294670.599000] ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A >>> [4294670.599000] ttyS2 at I/O 0x3e8 (irq = 4) is a 16550A >>> [4294670.601000] ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A >>> >>> Note that ttyS0 is found twice. After resume, ttyS0 is still available, >>> but ttyS2 now gives ENODEV. If the device was held open over suspend, >>> then the next suspend explodes when it tries to suspend the second >>> serial device. >> >> >> How about disable pnpacpi? >> >> Thanks, >> Shaohua >> > I disable PNP ACPI ,disable detect Serial port via ACPI. Serial port is > now detected right but system still oops after second sleep. I compile 2.6.13-rc3 with ACPI debuging and when I do echo 3 > /proc/acpi/sleep second time system freeze an on console I see this. Stopping tasks:=======================| osl-961 [35] os_wait_semaphore : Failed to acquire semaphore[cbfee4e0|1|0],AE_TIME Dan ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click