Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753509AbZDVMRX (ORCPT ); Wed, 22 Apr 2009 08:17:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752315AbZDVMRL (ORCPT ); Wed, 22 Apr 2009 08:17:11 -0400 Received: from an-out-0708.google.com ([209.85.132.243]:64219 "EHLO an-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750830AbZDVMRJ (ORCPT ); Wed, 22 Apr 2009 08:17:09 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=Faj/0/49cIGyZ+eqY1pLv/qefRjP+y/ghJ7XAcnGOy5FI8OkqBIxjdUP5oQjKO+xAQ tHSVgZwceuejxqN1S6WU2uCAc8GHfVK9nPy9LNMOjdbG63Lr3nzTRKMW/yEluPIK7S0E MqVQd9OycWgtYd4UkQRjfRDpEAwSKTKshjtcs= Message-ID: <49EF0ABD.2080801@tuffmail.co.uk> Date: Wed, 22 Apr 2009 13:17:01 +0100 From: Alan Jenkins User-Agent: Thunderbird 2.0.0.21 (X11/20090318) MIME-Version: 1.0 To: Arjan van de Ven CC: Bjorn Helgaas , linux-acpi@vger.kernel.org, linux-kernel , Kernel Testers List , Venkatesh Pallipadi Subject: Re: [FIXED] EEE PC hangs when booting off battery References: <49E065CF.6040408@tuffmail.co.uk> <200904140859.02188.bjorn.helgaas@hp.com> <20090414081728.10de978a@infradead.org> <200904140948.37633.bjorn.helgaas@hp.com> <49E5F01B.2060201@tuffmail.co.uk> In-Reply-To: <49E5F01B.2060201@tuffmail.co.uk> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1965 Lines: 59 Alan Jenkins wrote: > Bjorn Helgaas wrote: > >> On Tuesday 14 April 2009 09:17:28 am Arjan van de Ven wrote: >> >> >>> On Tue, 14 Apr 2009 08:59:01 -0600 >>> Bjorn Helgaas wrote: >>> >>> >>> >>>> I can't help with the real problem of why the asynchronous battery >>>> init causes the hang. >>>> >>>> >>> that got fixed already for the module case. >>> >>> >> But apparently still broken for the builtin case? I think Alan is >> running pretty new bits -- he said "latest git" on April 11. >> >> > > It's now fixed, in 2.6.30-rc2. My battery is modular btw. I suspect > > 5d38258ec026921a7b266f4047ebeaa75db358e5 "ACPI battery: fix async boot > oops" [removal of __init] > > was not sufficient to fix my problem, but it was solved by the "real" fix, > > d6de2c80e9d758d2e36c21699117db6178c0f517 "async: Fix module loading > async-work regression" [module loading waits on async work] > > > I would argue there's still a question over why the asynchronous battery > init (_with_ the oops fix) should cause a hang in the idle routine. But > since the regression is fixed, it's not exactly an urgent question. > Ugh. Recently I tried building the battery driver into the kernel, to benefit from the async work. Later, I tried booting from the battery and it hung again. This time, the kernel did not even respond to SysRq. I tried nmi_watchdog=1 and waiting 2 minutes, but the watchdog didn't trigger either. As before, it doesn't happen with acpi=off. I checked that this still happened in todays rc3, and it doesn't happen if I revert 0f66af530116e9f4dd97f328d91718b56a6fc5a4 "ACPI: battery: asynchronous init" Regards Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/