From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263740AbUGHVPp (ORCPT ); Thu, 8 Jul 2004 17:15:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261682AbUGHVPp (ORCPT ); Thu, 8 Jul 2004 17:15:45 -0400 Received: from grendel.digitalservice.pl ([217.67.200.140]:29315 "HELO mail.digitalservice.pl") by vger.kernel.org with SMTP id S263740AbUGHVPo (ORCPT ); Thu, 8 Jul 2004 17:15:44 -0400 From: "R. J. Wysocki" Organization: SiSK To: linux-kernel@vger.kernel.org Subject: 2.6.7-mm6: system hang with KAMix on dual Opteron w/ NUMA Date: Thu, 8 Jul 2004 23:24:55 +0200 User-Agent: KMail/1.5 Cc: Andrew Morton MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200407082324.55181.rjwysocki@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I've just discovered that I'm (consistently) able to hang the system solid by trying to adjust the sound volume using KAMix on 2.6.7-mm6 (SuSE 9.1/ AMD64). This problem does not occur on 2.6.7-mm5, so it's been introduced recently, it appears. Unfortunately, I'm unable to get any oops etc. from the kernel, even on the serial console (it only prints four spaces and hangs). I can only say it's unrelated to CONFIG_DEBUG_SLAB (it occurs with CONFIG_DEBUG_SLAB on and off). The system is a dual Opteron w/ NUMA w/o kernel preemption (hardware info log and kernel config attached). Yours, rjw -- Rafael J. Wysocki ---------------------------- For a successful technology, reality must take precedence over public relations, for nature cannot be fooled. -- Richard P. Feynman