From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270693AbTG0I16 (ORCPT ); Sun, 27 Jul 2003 04:27:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270694AbTG0I15 (ORCPT ); Sun, 27 Jul 2003 04:27:57 -0400 Received: from smtp-send.myrealbox.com ([192.108.102.143]:33367 "EHLO smtp-send.myrealbox.com") by vger.kernel.org with ESMTP id S270693AbTG0I1y (ORCPT ); Sun, 27 Jul 2003 04:27:54 -0400 Message-ID: <3F239071.7000905@myrealbox.com> Date: Sun, 27 Jul 2003 16:42:25 +0800 From: Romit Dasgupta User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020830 X-Accept-Language: en-us, en MIME-Version: 1.0 To: akpm@osdl.org CC: linux-kernel@vger.kernel.org Subject: Re : Re: Debug: sleeping function called from invalid context Content-Type: multipart/mixed; boundary="------------060707080100000202080303" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------060707080100000202080303 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit />> / />> Just found some debug messages like the subject above, from / />> the latest kernel compiled with debug options. Attached are the dmesg / />> output and the .config file. Not sure if anyone has seen this. / >Probably some initcall has more spin_lock()s than spin_unlock()s and the >init process's preempt count ended up permanently out of whack. >Please boot with "initcall_debug=1" on the boot command line and if you see >a line of the form: >error in initcall at 0xXXXXXXXX: returned with preemption imbalance >then please look up 0xXXXXXXXX in System.map and let us know. Hello Andrew, Thanks for your help. The problem does not show up on every boot. I really dont know, what causes it to trigger. Nevertheless, I booted with the options you suggested. I kept executing dmesg often, and this time i was lucky to get those errors back again! So I am attaching the output of dmesg. Unfortunately, I can't see any message like ".....: returned with preemption imbalance". 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