From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: [BUG] 2.6.24 refuses to boot - ATA problem? Date: Mon, 04 Feb 2008 14:13:24 -0500 Message-ID: <47A763D4.5090606@rtr.ca> References: <745427.71265.qm@web52907.mail.re2.yahoo.com> <200802030011.34086.gene.heskett@gmail.com> <20080203055807.GA25545@elte.hu> <200802030125.24663.gene.heskett@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:4567 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753857AbYBDTN0 (ORCPT ); Mon, 4 Feb 2008 14:13:26 -0500 In-Reply-To: <200802030125.24663.gene.heskett@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Gene Heskett Cc: Ingo Molnar , Jeff Garzik , Chris Rankin , linux-ide@vger.kernel.org, LKML Gene Heskett wrote: > On Sunday 03 February 2008, Ingo Molnar wrote: >> * Gene Heskett wrote: >>> I believe its the same, but lemme paste it for sure, yes: >>> [ 26.339926] ENABLING IO-APIC IRQs >>> [ 26.340119] ..TIMER: vector=0x31 apic1=0 pin1=0 apic2=-1 pin2=-1 >>> [ 26.350129] ..MP-BIOS bug: 8254 timer not connected to IO-APIC >>> [ 26.350182] ...trying to set up timer (IRQ0) through the 8259A ... >>> failed. [ 26.350185] ...trying to set up timer as Virtual Wire IRQ... >>> failed. [ 26.360186] ...trying to set up timer as ExtINT IRQ... works. >>> >>> The third line is the only line that makes it to the screen during the >>> boot trace. >>> >>> Now, what does this tell us? >> the question would be: >> >> - if you remove the acpi_use_timer_override boot flag >> - and if you boot a kernel with this hack applied >> >> => do those weird PATA failures come back? >> >> If the failues do _not_ come back then the problem is somehow >> affected/worked-around by the IO-APIC code that generates the above 4 >> lines. If the failures are still the same then the above 4 lines are >> really just an uninteresting side-effect of the acpi_use_timer_override >> flag - and the real side-effects (that fixes PATA on your box) are to be >> found elsewhere. >> >> Sadly, the latter variant is the expected answer. >> >> Ingo > > And at this point, I can't tell. This reboot was from a cold start, without > the argument, and cold by long enough to make the rounds about the house and > pick up a beer, but not take my evening pillbox. A minute cold, maybe 2 max. > The log is clean since except for a kudzu nag of some sort: .. Just to muddy your observations: it is quite possible that a cold (power-off) reboot may be required to properly observe what happens here. Cheers