From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755935AbZBJOzc (ORCPT ); Tue, 10 Feb 2009 09:55:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754555AbZBJOzO (ORCPT ); Tue, 10 Feb 2009 09:55:14 -0500 Received: from lon1-post-2.mail.demon.net ([195.173.77.149]:45757 "EHLO lon1-post-2.mail.demon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755075AbZBJOzL convert rfc822-to-8bit (ORCPT ); Tue, 10 Feb 2009 09:55:11 -0500 Date: Tue, 10 Feb 2009 14:12:44 +0000 From: Darren Salt To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, "Rafael J. Wysocki" , Len Brown , Linus Torvalds , Andrew Morton , Jesse Barnes , Thomas Gleixner , "H. Peter Anvin" , Matthew Garrett , Corentin Chary Message-ID: <5030E21460%linux@youmustbejoking.demon.co.uk> In-Reply-To: <20090209234911.GB862@elte.hu> References: <20090209234911.GB862@elte.hu> Mail-Followup-To: Ingo Molnar , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, "Rafael J. Wysocki" , Len Brown , Linus Torvalds , Andrew Morton , Jesse Barnes , Thomas Gleixner , "H. Peter Anvin" , Darren Salt , Matthew Garrett , Corentin Chary User-Agent: Gemini/2.29m (Qt/3.3.8b) (Linux-x86_64) X-SDate: Tue, 5642 Sep 1993 14:12:44 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-SA-Exim-Connect-IP: 192.168.0.5 X-SA-Exim-Mail-From: linux@youmustbejoking.demon.co.uk Subject: Re: Oopses and ACPI problems (Linus 2.6.29-rc4) X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:23:22 +0000) X-SA-Exim-Scanned: Yes (on pentagram.youmustbejoking.demon.co.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [Adding Matthew Garrett & Corentin Chary to Cc] I demand that Ingo Molnar may or may not have written... > * Darren Salt wrote: >> I'm seeing various oopses with -rc4, where -rc3 is fine; config, dmesg >> (captured via netconsole) and decoded oops data attached ¹. The last few >> oopses were followed by a scrambled display and a hard lockup. >> All oopses follow an otherwise successful suspend-to-RAM. > Various folks Cc:-ed. There's been a late, rather large ACPI merge, so > one post-rc3 suspect would be one of these commits: [snip] > 7695fb0: eeepc-laptop: fix oops when changing backlight brightness during eeepc-laptop init No, that one's harmless :-) [snip] > 2b25c9f: eeepc-laptop: use netlink interface That one makes acpid (apparently) useless. The rest of the commit description is: To be prepared for /proc/acpi/event removal we export events also through generic netlink interface. Note that "also". The actual effect of the patch is "instead". Adding the two removed lines (but removing the post-increment of the event count) fixes this. > 5740294: eeepc-laptop: Implement rfkill hotplugging in eeepc-laptop Reverting this fixes the rfkill oops; things work correctly again. I don't know why this appears to be needed, since things work fine without this patch ‒ both Fn-F2 and echoing to /sys/class/rfkill/rfkill0/state ‒ even when I start up with init=/bin/sh and test directly from that shell. (901; BIOS rev. 1808.) [snip] > 2a7dc0d: asus-laptop: use generic netlink interface That one also says "also" where it should say "instead" (not that it affects me). ... oh yes, there's a long delay between output of these two lines during boot: input: ETPS/2 Elantech Touchpad as /class/input/input5 eeepc: Hotkey init flags 0x41 (not seen in .28 or .28.1; not checked later .28.*.) Anyway, a patch for the ACPI reporting problems will follow this message. [snip] -- | Darren Salt | linux or ds at | nr. Ashington, | Toon | RISC OS, Linux | youmustbejoking,demon,co,uk | Northumberland | Army | + Output less CO2 => avoid massive flooding. TIME IS RUNNING OUT *FAST*. Life is that brief interlude between nothingness and eternity.