From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: _xmit_ETHER lockdep warning. (-git8) Date: Fri, 1 Aug 2008 15:29:47 -0400 Message-ID: <20080801192947.GA26210@codemonkey.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: netdev@vger.kernel.org Return-path: Received: from testure.choralone.org ([194.9.77.134]:40717 "EHLO testure.choralone.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751934AbYHAT3Q (ORCPT ); Fri, 1 Aug 2008 15:29:16 -0400 Received: from davej by testure.choralone.org with local (Exim 4.69) (envelope-from ) id 1KP0Jv-0001PB-LB for netdev@vger.kernel.org; Fri, 01 Aug 2008 20:29:47 +0100 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: A week or so old, but possibly still valid.. https://bugzilla.redhat.com/show_bug.cgi?id=456521 ============================================= [ INFO: possible recursive locking detected ] 2.6.27-0.166.rc0.git8.fc10.x86_64 #1 --------------------------------------------- swapper/0 is trying to acquire lock: (_xmit_ETHER){-+..}, at: [] dev_watchdog+0x41/0x1a7 but task is already holding lock: (_xmit_ETHER){-+..}, at: [] dev_watchdog+0x41/0x1a7 other info that might help us debug this: 1 lock held by swapper/0: #0: (_xmit_ETHER){-+..}, at: [] dev_watchdog+0x41/0x1a7 stack backtrace: Pid: 0, comm: swapper Not tainted 2.6.27-0.166.rc0.git8.fc10.x86_64 #1 Call Trace: [] __lock_acquire+0x790/0xaa7 [] ? trace_hardirqs_on+0xd/0xf [] ? dev_watchdog+0x41/0x1a7 [] lock_acquire+0x96/0xc3 [] ? dev_watchdog+0x41/0x1a7 [] _spin_lock+0x2b/0x58 [] dev_watchdog+0x41/0x1a7 [] ? dev_watchdog+0x0/0x1a7 [] run_timer_softirq+0x17f/0x1f7 [] __do_softirq+0x83/0x110 [] call_softirq+0x1c/0x28 [] do_softirq+0x52/0xb5 [] irq_exit+0x53/0xa0 [] smp_apic_timer_interrupt+0x94/0xad [] apic_timer_interrupt+0x88/0x90 [] ? native_safe_halt+0x6/0x8 [] ? trace_hardirqs_on+0xd/0xf [] ? default_idle+0x2f/0x51 [] ? c1e_idle+0x108/0x10f [] ? atomic_notifier_call_chain+0x14/0x16 [] ? cpu_idle+0x92/0xeb [] ? start_secondary+0x1a1/0x1a3 -- http://www.codemonkey.org.uk