From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756902AbYDALq4 (ORCPT ); Tue, 1 Apr 2008 07:46:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756894AbYDALqt (ORCPT ); Tue, 1 Apr 2008 07:46:49 -0400 Received: from s131.mittwaldmedien.de ([62.216.178.31]:20578 "EHLO s131.mittwaldmedien.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756575AbYDALqr (ORCPT ); Tue, 1 Apr 2008 07:46:47 -0400 X-Greylist: delayed 1968 seconds by postgrey-1.27 at vger.kernel.org; Tue, 01 Apr 2008 07:46:47 EDT From: Holger Schurig To: linux-kernel@vger.kernel.org Subject: BUG: spinlock tryout failure (in netconsole?) Date: Tue, 1 Apr 2008 13:11:03 +0200 User-Agent: KMail/1.9.7 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200804011311.03219.hs4233@mail.mn-solutions.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This happend with the wireless-testing tree. $ git-describe v2.6.25-rc7-3570-g78f8e64 Netconsole was loaded with $ modprobe netconsole netconsole="5555@/eth0,5555@192.168.233.66/00:1D:60:14:33:2B" The routing was in a way that the netconsole packets would have to go via the ethernet device, not via wlan interface. The ARP entry for the mac address above also says eth0: $ arp -n Address HWtype HWaddress Flags Mask Iface 192.168.233.1 ether 00:0C:6E:49:9B:27 C eth0 192.168.233.66 ether 00:1D:60:14:33:2B C eth0 Apr 1 11:05:39 laptop kernel: libertas_cs enter (INT): if_cs_interrupt() Apr 1 11:05:39 laptop kernel: BUG: spinlock trylock failure on UP on CPU#0, syslogd/1277 Apr 1 11:05:39 laptop kernel: lock: f7c8a1d0, .magic: dead4ead, .owner: syslogd/1277, .owner_cpu: 0 Apr 1 11:05:39 laptop kernel: Pid: 1277, comm: syslogd Not tainted 2.6.25-rc7-wl #25 Apr 1 11:05:39 laptop kernel: [] spin_bug+0x76/0xb1 Apr 1 11:05:39 laptop kernel: [] _raw_spin_trylock+0x36/0x3b Apr 1 11:05:39 laptop kernel: [] _spin_trylock+0x17/0x5b Apr 1 11:05:39 laptop kernel: [] netpoll_send_skb+0x85/0x14c Apr 1 11:05:39 laptop kernel: [] netpoll_send_udp+0x252/0x25a Apr 1 11:05:39 laptop kernel: [] write_msg+0x67/0x94 [netconsole] Apr 1 11:05:39 laptop kernel: [] ? write_msg+0x0/0x94 [netconsole] Apr 1 11:05:39 laptop kernel: [] __call_console_drivers+0x3b/0x48 Apr 1 11:05:39 laptop kernel: [] _call_console_drivers+0x57/0x5b Apr 1 11:05:39 laptop kernel: [] release_console_sem+0x11b/0x1b7 Apr 1 11:05:39 laptop kernel: [] vprintk+0x263/0x29a Apr 1 11:05:39 laptop kernel: [] printk+0x15/0x17 Apr 1 11:05:39 laptop kernel: [] if_cs_interrupt+0x63/0x4f9 [libertas_cs] Apr 1 11:05:39 laptop kernel: [] handle_IRQ_event+0x1a/0x46 Apr 1 11:05:39 laptop kernel: [] handle_level_irq+0x6f/0xba Apr 1 11:05:39 laptop kernel: [] do_IRQ+0x53/0x6d Apr 1 11:05:39 laptop kernel: [] common_interrupt+0x2e/0x34 Apr 1 11:05:39 laptop kernel: [] ? get_usage_chars+0x78/0x7d Apr 1 11:05:39 laptop kernel: [] ? _spin_unlock_irqrestore+0x38/0x51 Apr 1 11:05:39 laptop kernel: [] rtl8139_start_xmit+0xe9/0x10f Apr 1 11:05:39 laptop kernel: [] dev_hard_start_xmit+0x16f/0x1dc Apr 1 11:05:39 laptop kernel: [] __qdisc_run+0x7a/0x14e Apr 1 11:05:39 laptop kernel: [] dev_queue_xmit+0x119/0x23d Apr 1 11:05:39 laptop kernel: [] ip_finish_output+0x1d1/0x20c Apr 1 11:05:39 laptop kernel: [] ip_output+0x56/0x5a Apr 1 11:05:39 laptop kernel: [] ip_local_out+0x18/0x1b Apr 1 11:05:39 laptop kernel: [] ip_push_pending_frames+0x259/0x2c9 Apr 1 11:05:39 laptop kernel: [] udp_push_pending_frames+0x2b2/0x345 Apr 1 11:05:39 laptop kernel: [] udp_sendmsg+0x416/0x51a Apr 1 11:05:39 laptop kernel: [] inet_sendmsg+0x3b/0x48 Apr 1 11:05:39 laptop kernel: [] sock_sendmsg+0xc9/0xe0 Apr 1 11:05:39 laptop kernel: [] ? autoremove_wake_function+0x0/0x33 Apr 1 11:05:39 laptop kernel: [] ? copy_from_user+0x3b/0x5e Apr 1 11:05:39 laptop kernel: [] sys_sendto+0xa4/0xc3 Apr 1 11:05:39 laptop kernel: [] ? dnotify_parent+0x57/0x5c Apr 1 11:05:39 laptop kernel: [] ? do_readv_writev+0x132/0x140 Apr 1 11:05:39 laptop kernel: [] sys_socketcall+0xde/0x166 Apr 1 11:05:39 laptop kernel: [] sysenter_past_esp+0x5f/0xa5 Apr 1 11:05:39 laptop kernel: ======================= Apr 1 11:05:39 laptop kernel: libertas_cs cs (INT): int_cause 0x0002