From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Subject: Re: 2.6.25 pci=noacpi Date: Fri, 02 May 2008 14:11:26 +0100 Message-ID: <481B12FE.1050805@gmail.com> References: <20080425183807.366134771@ldl.fc.hp.com> <200805010110.40709.lenb@kernel.org> <48196CC5.6070704@gmail.com> <200805011159.38059.lenb@kernel.org> <481AF995.3000305@gmail.com> <20080502054729.a91e601c.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from fg-out-1718.google.com ([72.14.220.159]:20373 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760698AbYEBNLd (ORCPT ); Fri, 2 May 2008 09:11:33 -0400 Received: by fg-out-1718.google.com with SMTP id 19so937884fgg.17 for ; Fri, 02 May 2008 06:11:31 -0700 (PDT) In-Reply-To: <20080502054729.a91e601c.akpm@linux-foundation.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Andrew Morton Cc: Len Brown , linux-acpi@vger.kernel.org, Adam M Belay , Li Shaohua , Matthieu Castet , Thomas Renninger , Jaroslav Kysela Andrew Morton wrote: > On Fri, 02 May 2008 12:23:01 +0100 Richard wrote: > > >> Len Brown wrote: >> >>> On Thursday 01 May 2008, Richard wrote: >>> >>> >>>> Len Brown wrote: >>>> >>>> >>>>> On Tuesday 29 April 2008, Richard wrote: >>>>> >>>>> >>>>> >>>>>> Hi there, >>>>>> >>>>>> Now I am at a loss.. I cant get any logs from netconsole. With ACPI >>>>>> enabled it drops dead just after the kernel hands control to Init. When >>>>>> I reboot with acpi disabled there is no trace of the previous boot in >>>>>> /var/log/message or kernel logs. >>>>>> >>>>>> The network card I have is a Tigon3 and its not initialised before the >>>>>> system dies... or so it looks (altho I cant seem to get any netconsole >>>>>> working - I suspect pebkac) >>>>>> >>>>>> I have tried to find an option where the kernel boot is logged >>>>>> explicitly to disk, but I cant seem to find the option. There is so much >>>>>> chaff I cant seem to get my brain to find the REAL options list thats up >>>>>> to date. >>>>>> >>>>>> Any pointers are appreciated >>>>>> >>>>>> >>>>>> >>>>> go fishing with this bait: >>>>> >>>>> idle=poll >>>>> acpi=noirq >>>>> >>>>> -Len >>>>> >>>>> >>>>> >>>>> >>>> Thanks :-) With help from Thomas (and his team) , noapictimer seems to >>>> have fixed the symptom.. now its to hunt for the cure :-) >>>> >>>> >>> if the problem is the apic timer stopping during C-states, >>> then you should find that idle=poll will also work around the problem. >>> If idle=poll does not work around it but noapictimer does, then >>> the problem is the apic timer when the system is non-idle. >>> >>> -Len >>> >>> >>> >> Hi Len, >> >> thanks - the idle=poll works to fix the problem. >> > > Well, that's hardly a "fix". The power consumption will be very high. > > Hehehe, its a start. A booting kernel is definitely a good start (even one what drinks battery). I have some avenues in the source to investigate, but being a ACPI n00bie its trying to get my head around the mass of code thats a daunting task. Richard