From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: netlink locking warnings in 2.6.21-rc7-mm1 Date: Wed, 25 Apr 2007 12:44:49 -0700 Message-ID: <20070425124449.98bf091c.akpm@linux-foundation.org> References: <462F54F3.9050306@trash.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Herbert Xu , David Miller , netdev@vger.kernel.org To: Patrick McHardy Return-path: Received: from smtp1.linux-foundation.org ([65.172.181.25]:56717 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030998AbXDYTpd (ORCPT ); Wed, 25 Apr 2007 15:45:33 -0400 In-Reply-To: <462F54F3.9050306@trash.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org I just retested bare net-2.6.22, pulled 30 minutes ago. I got just one warning: PM: Removing info for No Bus:0000:06:0b.0 eth0: no IPv6 routers present ipw2200: Radio Frequency Kill Switch is On: Kill switch must be turned off for wireless networking to work. PM: Adding info for No Bus:eth1 ipw2200: Detected geography ZZA (11 802.11bg channels, 13 802.11a channels) ipw2200: Failed to send WEP_KEY: Aborted due to RF kill switch. ipw2200: Failed to send WEP_KEY: Command timed out. ipw2200: Failed to send WEP_KEY: Command timed out. BUG: at kernel/mutex-debug.c:82 debug_mutex_unlock() [] debug_mutex_unlock+0x5a/0x134 [] __mutex_unlock_slowpath+0x9d/0xcf [] ipw_wx_set_encode+0x0/0x82 [ipw2200] [] rtnl_unlock+0xa/0x29 [] dev_ioctl+0x3d0/0x402 [] __handle_mm_fault+0x7c6/0x7e8 [] selinux_file_alloc_security+0x1f/0x40 [] sock_ioctl+0x0/0x1be [] do_ioctl+0x19/0x4d [] vfs_ioctl+0x1ff/0x216 [] sys_ioctl+0x4c/0x65 [] syscall_call+0x7/0xb [] unix_dgram_sendmsg+0x76/0x400 ======================= It's 100% reproducible here, using http://userweb.kernel.org/~akpm/config-sony.txt The weird ASSERT_RTNL warnings aren't there, so something else in -mm (prior to git-net.patch in the series file) would appear to be interacting with net changes.