From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: ec locking issue Date: Mon, 19 Feb 2007 16:45:02 -0500 Message-ID: <20070219214502.GA19762@isilmar.linta.de> References: <20070215192616.GA31595@isilmar.linta.de> <45D4BF92.5050401@linux.intel.com> <200702161254.55430.lenb@kernel.org> <20070219134431.GG9283@isilmar.linta.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from isilmar.linta.de ([213.239.214.66]:52461 "EHLO linta.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932713AbXBSVpG (ORCPT ); Mon, 19 Feb 2007 16:45:06 -0500 Content-Disposition: inline In-Reply-To: <20070219134431.GG9283@isilmar.linta.de> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown Cc: Alexey Starikovskiy , linux-acpi@vger.kernel.org Hi, On Mon, Feb 19, 2007 at 08:44:31AM -0500, Dominik Brodowski wrote: > On Fri, Feb 16, 2007 at 12:54:55PM -0500, Len Brown wrote: > > > > acpi_ec_transaction > > > > acpi_ec_read > > > > acpi_ec_space_handler > > > > acpi_ev_address_space_dispatch > > > > acpi_ex_access_region > > > > acpi_ex_field_datum_ > > > > acpi_ex_extract_from_field > > > > ... > > > > acpi_ex_ns_evaluate > > > > acpi_ev_execute_reg_method > > > > acpi_ev_reg_run > > > > acpi_ns_walk_namespace > > > > acpi_ev_execute_reg_methods > > > > acpi_install_address_space_handler > > > > acpi_ec_start > > > > acpi_start_single_object > > > > acpi_device_probe > > > > really_probe > > > > ... > > > > bus_add_driver > > > > ... > > > > acpi_ec_init > > > > Alexey, > > Thanks for the fix -- it is applied. > > > > Dominik, > > Did this fix help, or is the problem elsehwere? > > Unfortunately, this doesn't solve the issue for me -- now I get a panic with > EIP at __list_add+0x2d/0x60, with the call trace being > > ... > die > do_page_fault > error_code > __mutex_lock_slowpath > mutex_lock > acpi_ec_transaction > > and then the same as above... Will try it out with lockdep disabled. No, doesn't seem to be lockdep-related; same issue continues. "acpi=off" fixes the issue, though, of course... Thanks, Dominik