From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754805AbYIEQ7H (ORCPT ); Fri, 5 Sep 2008 12:59:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751897AbYIEQ6z (ORCPT ); Fri, 5 Sep 2008 12:58:55 -0400 Received: from 166-70-238-42.ip.xmission.com ([166.70.238.42]:38773 "EHLO ns1.wolfmountaingroup.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751868AbYIEQ6y (ORCPT ); Fri, 5 Sep 2008 12:58:54 -0400 Message-ID: <48761.166.70.238.43.1220632184.squirrel@webmail.wolfmountaingroup.com> Date: Fri, 5 Sep 2008 10:29:44 -0600 (MDT) Subject: 2.6.27-rc5-git7 iwl3945: driver still has receiver lockups and is worse than before From: jmerkey@wolfmountaingroup.com To: linux-kernel@vger.kernel.org User-Agent: SquirrelMail/1.4.6 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Priority: 3 (Normal) Importance: Normal Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Same problems as previously reported, except now it's gotten worse. Where before the adapter would lockup only when setting encryption keys, now it locks up intermittently even without using encryption using the native linux iwl3945 driver This same kernel now causes ndis drivers to crash under ndiswrapper (which wrked before) with bugs being reported in the "workqueue" functions. The specific area where I tracked down some serious bugginess and sickness was here (I LOVE MY SHINY NEW LINUX KERNEL DEBUGGER). if (unlikely(in_atomic() || lockdep_depth(current) > 0)) { printk(KERN_ERR "BUG: workqueue leaked lock or atomic: " "%s/0x%08x/%d\n", current->comm, preempt_count(), task_pid_nr(current)); printk(KERN_ERR " last function: "); print_symbol("%s\n", (unsigned long)f); debug_show_held_locks(current); dump_stack(); } These iwl3945 problems seem related to the copy of Novell's work-to-do subsystem called "workqueues" in linux when preemption is active, at least in the ndiswrapper case. Jeff