Return-path: Received: from mga03.intel.com ([143.182.124.21]:28574 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757374AbYDORXH convert rfc822-to-8bit (ORCPT ); Tue, 15 Apr 2008 13:23:07 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: [Bugme-new] [Bug 10455] New: Kernel lockup when iwl3945 modules is loaded after a few hours Date: Tue, 15 Apr 2008 10:22:58 -0700 Message-ID: (sfid-20080415_182312_946350_A52E5A4D) In-Reply-To: <200804150915.56235.bjorn.helgaas@hp.com> References: <20080415020103.cd8e17f4.akpm@linux-foundation.org> <200804150915.56235.bjorn.helgaas@hp.com> From: "Chatre, Reinette" To: "Bjorn Helgaas" , "Andrew Morton" Cc: "Bart Van Assche" , , , Sender: linux-wireless-owner@vger.kernel.org List-ID: On , Bjorn Helgaas wrote: > iwl3945 modules is loaded after a few hours > >>>> > Apr 14 21:06:00 localhost kernel: ACPI: PCI Interrupt > 0000:05:00.0[A] -> GSI 19 (level, low) -> IRQ 19 >>>> > Apr 14 21:06:00 localhost kernel: ACPI: PCI interrupt > for device 0000:05:00.0 disabled >>>> >>>> Yes, that does look like an ACPI problem. But one would expect >>>> it to kill the interface immediately, not several hours later. > > I can't tell whether this is an ACPI problem. These messages are from > pci_enable_device() and pci_disable_device(). So it looks like you're > seeing an enable/disable pair every 124 seconds. > > This could be a problem somewhere in iwl3945_mac_start() that causes > us to turn around and disable the device immediately. Most of > the problems > there have IWL_ERROR() messages associated with them, and you > apparently aren't seeing those. (duplicate entry will be found in bugzilla) Are there any userspace apps managing this device? (eg. wpa_supplicant?) Could you please load the driver with debugging (modprobe iwl3945 debug=0x43ffb) - that will help us see if iwl3945_mac_start() is being called frequently. Thanks Reinette