From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: Another 2.6.25rc7 lockdep trace Date: Thu, 27 Mar 2008 21:54:16 -0400 Message-ID: <20080328015416.GB4695@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]:53365 "EHLO testure.choralone.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753957AbYC1ByX (ORCPT ); Thu, 27 Mar 2008 21:54:23 -0400 Received: from c-66-30-206-50.hsd1.ma.comcast.net ([66.30.206.50] helo=gelk.kernelslacker.org) by testure.choralone.org with esmtpsa (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1Jf3jO-0004y7-Kp for netdev@vger.kernel.org; Fri, 28 Mar 2008 01:50:10 +0000 Received: from davej by gelk.kernelslacker.org with local (Exim 4.68) (envelope-from ) id 1Jf3nM-00053B-2O for netdev@vger.kernel.org; Thu, 27 Mar 2008 21:54:16 -0400 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Seems different to the one I just posted. This one popped up after a barrage of random packets.. Dave ================================= [ INFO: inconsistent lock state ] 2.6.25-0.161.rc7.fc9.i686 #1 --------------------------------- inconsistent {in-softirq-W} -> {softirq-on-R} usage. modprobe/7285 [HC0[0]:SC0[0]:HE1:SE1] takes: (&f->lock){-+-?}, at: [inet_frag_evictor+60/175] inet_frag_evictor+0x3c/0xaf {in-softirq-W} state was registered at: [__lock_acquire+1216/3089] __lock_acquire+0x4c0/0xc11 [lock_acquire+106/144] lock_acquire+0x6a/0x90 [_write_lock+28/73] _write_lock+0x1c/0x49 [inet_frag_find+216/405] inet_frag_find+0xd8/0x195 [ip_defrag+174/2168] ip_defrag+0xae/0x878 [] ipv4_conntrack_defrag+0x4c/0x72 [nf_conntrack_ipv4] [nf_iterate+47/100] nf_iterate+0x2f/0x64 [nf_hook_slow+85/193] nf_hook_slow+0x55/0xc1 [ip_rcv+494/551] ip_rcv+0x1ee/0x227 [netif_receive_skb+901/968] netif_receive_skb+0x385/0x3c8 [] e100_poll+0x165/0x2fb [e100] [net_rx_action+203/506] net_rx_action+0xcb/0x1fa [__do_softirq+132/266] __do_softirq+0x84/0x10a [do_softirq+121/218] do_softirq+0x79/0xda [] 0xffffffff irq event stamp: 7247 hardirqs last enabled at (7247): [_spin_unlock_irqrestore+64/80] _spin_unlock_irqrestore+0x40/0x50 hardirqs last disabled at (7246): [_spin_lock_irqsave+35/104] _spin_lock_irqsave+0x23/0x68 softirqs last enabled at (7244): [] nf_ct_iterate_cleanup+0xdc/0xfb [nf_conntrack] softirqs last disabled at (7242): [_spin_lock_bh+12/78] _spin_lock_bh+0xc/0x4e other info that might help us debug this: no locks held by modprobe/7285. stack backtrace: Pid: 7285, comm: modprobe Not tainted 2.6.25-0.161.rc7.fc9.i686 #1 [print_usage_bug+266/279] print_usage_bug+0x10a/0x117 [mark_lock+822/1009] mark_lock+0x336/0x3f1 [__lock_acquire+1349/3089] __lock_acquire+0x545/0xc11 [_spin_unlock_irq+34/47] ? _spin_unlock_irq+0x22/0x2f [lock_acquire+106/144] lock_acquire+0x6a/0x90 [inet_frag_evictor+60/175] ? inet_frag_evictor+0x3c/0xaf [_read_lock+28/73] _read_lock+0x1c/0x49 [inet_frag_evictor+60/175] ? inet_frag_evictor+0x3c/0xaf [inet_frag_evictor+60/175] inet_frag_evictor+0x3c/0xaf [] nf_ct_frag6_cleanup+0x26/0x28 [nf_conntrack_ipv6] [] nf_conntrack_l3proto_ipv6_fini+0x44/0x46 [nf_conntrack_ipv6] [sys_delete_module+418/475] sys_delete_module+0x1a2/0x1db [audit_syscall_entry+249/291] ? audit_syscall_entry+0xf9/0x123 [syscall_call+7/11] syscall_call+0x7/0xb ======================= -- http://www.codemonkey.org.uk