From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: kernel BUG at kernel/timer.c:748! Date: Wed, 5 Sep 2012 00:35:23 -0400 Message-ID: <20120905043523.GA12988@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: netdev@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:27678 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753607Ab2IENtm (ORCPT ); Wed, 5 Sep 2012 09:49:42 -0400 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q85DnfGf011098 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 5 Sep 2012 09:49:42 -0400 Received: from gelk.kernelslacker.org (ovpn-113-157.phx2.redhat.com [10.3.113.157]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q85DneSl008597 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 5 Sep 2012 09:49:41 -0400 Received: from gelk.kernelslacker.org (localhost [127.0.0.1]) by gelk.kernelslacker.org (8.14.5/8.14.5) with ESMTP id q854ZN5j013351 for ; Wed, 5 Sep 2012 00:35:24 -0400 Received: (from davej@localhost) by gelk.kernelslacker.org (8.14.5/8.14.5/Submit) id q854ZNkk013348 for netdev@vger.kernel.org; Wed, 5 Sep 2012 00:35:23 -0400 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Just hit this bug on 3.6-rc4. The BUG is.. BUG_ON(!timer->function); Not much to go on... Any thoughts on what I could add to get more debug info on which protocol etc this was ? Dave kernel BUG at kernel/timer.c:748! invalid opcode: 0000 [#1] SMP Modules linked in: tun fuse ipt_ULOG binfmt_misc nfnetlink nfc caif_socket caif phonet can llc2 pppoe pppox ppp_generic slhc irda crc_ccitt rds af_key decnet rose x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 nfsv3 nfs_acl nfs fscache lockd sunrpc bluetooth rfkill ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode pcspkr i2c_i801 e1000e uinput i915 video i2c_algo_bit drm_kms_helper drm i2c_core CPU 3 Pid: 12330, comm: trinity-child3 Not tainted 3.6.0-rc4+ #36 RIP: 0010:[] [] mod_timer+0x2c5/0x2f0 RSP: 0018:ffff88000dfd7e08 EFLAGS: 00010246 RAX: 000000000000001a RBX: ffff880122d62948 RCX: 000000000000001a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88000dfd7e10 RBP: ffff88000dfd7e48 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000001517000 R11: 0000000000000246 R12: 000000016c000000 R13: 000000016c12bcb1 R14: ffff8801236cee00 R15: 00000000ffffff01 FS: 00007fa96745f740(0000) GS:ffff880148200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000100ff000 CR3: 0000000099344000 CR4: 00000000001407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process trinity-child3 (pid: 12330, threadinfo ffff88000dfd6000, task ffff880090890000) Stack: ffffffff8154cb6d 0000000007b5edf7 ffff88000dfd7e28 ffff880122d62520 0000000000000009 0000000000000004 ffff8801236cee00 00000000ffffff01 ffff88000dfd7e68 ffffffff8154c79c ffffffff81550e6c ffff880122d62520 Call Trace: [] ? lock_sock_nested+0x8d/0xa0 [] sk_reset_timer+0x1c/0x30 [] ? sock_setsockopt+0x8c/0x960 [] inet_csk_reset_keepalive_timer+0x20/0x30 [] tcp_set_keepalive+0x3d/0x50 [] sock_setsockopt+0x923/0x960 [] ? trace_hardirqs_on_caller+0x16/0x1e0 [] ? fget_light+0x24c/0x520 [] sys_setsockopt+0xc6/0xe0 [] system_call_fastpath+0x1a/0x1f Code: 00 74 43 9c 58 0f 1f 44 00 00 f6 c4 02 0f 84 14 ff ff ff eb 93 48 c7 c7 20 48 c3 81 e8 f5 70 05 00 85 c0 0f 85 fe fe ff ff eb b7 <0f> 0b 48 8b 75 08 48 89 df e8 3d f6 ff ff e9 b2 fd ff ff 4d 89 RIP [] mod_timer+0x2c5/0x2f0 RSP ---[ end trace 7e7b5910138e49a3 ]---