From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753381Ab0AMMmK (ORCPT ); Wed, 13 Jan 2010 07:42:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752773Ab0AMMmJ (ORCPT ); Wed, 13 Jan 2010 07:42:09 -0500 Received: from fg-out-1718.google.com ([72.14.220.159]:13574 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751118Ab0AMMmI (ORCPT ); Wed, 13 Jan 2010 07:42:08 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :x-enigmail-version:content-type:content-transfer-encoding; b=YJqnetU8IHjiKxdSTKk/Q5H2IM6ePRjG/lYNsWeciUgBc3KB3/7kfQKy7FiVf0OL/y 6vFY5pYwFc+Q3JGoqlupzIdRMUsyBkiQ1luiONn9DGEqjNo6wlwjgkhOw8etdsh1GmWB yxSES5SqyoTL3/rEP737yNqVHOPrwnlb3/hIg= Message-ID: <4B4DBF9D.7040002@gmail.com> Date: Wed, 13 Jan 2010 13:42:05 +0100 From: Jiri Slaby User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; cs-CZ; rv:1.9.1.5) Gecko/20091130 SUSE/3.0.0-17.1 Thunderbird/3.0 MIME-Version: 1.0 To: linux-pcmcia@lists.infradead.org CC: LKML Subject: broken pcmcia_bus_match for dynids X-Enigmail-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, stanse found that when PCMCIA_DEV_ID_MATCH_FAKE_CIS is set in match_flags for a dynid, the pcmcia layer may deadlock. pcmcia_load_firmware in such case calls non-atomic operations (request_firmware, kzalloc(GFP_KERNEL)), while dynids.lock spinlock is held. Any ideas how to solve this? Any idea, why p_drv->dynids.lock is not a mutex instead? thanks, -- js