Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755460AbYGVMwj (ORCPT ); Tue, 22 Jul 2008 08:52:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752320AbYGVMw2 (ORCPT ); Tue, 22 Jul 2008 08:52:28 -0400 Received: from mtiwmhc12.worldnet.att.net ([204.127.131.116]:50736 "EHLO mtiwmhc12.worldnet.att.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752022AbYGVMw1 (ORCPT ); Tue, 22 Jul 2008 08:52:27 -0400 Message-ID: <4885D808.9060203@lwfinger.net> Date: Tue, 22 Jul 2008 07:52:24 -0500 From: Larry Finger User-Agent: Thunderbird 2.0.0.12 (X11/20071114) MIME-Version: 1.0 To: David Miller CC: kaber@trash.net, mingo@elte.hu, ischram@telenet.be, torvalds@linux-foundation.org, akpm@linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, j@w1.fi Subject: Re: [crash] BUG: unable to handle kernel NULL pointer dereference at 0000000000000370 References: <4885104A.2070201@lwfinger.net> <20080721.161517.27161039.davem@davemloft.net> <48857F74.2040406@lwfinger.net> <20080722.043220.247312412.davem@davemloft.net> In-Reply-To: <20080722.043220.247312412.davem@davemloft.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3797 Lines: 86 David Miller wrote: > From: Larry Finger > Date: Tue, 22 Jul 2008 01:34:28 -0500 > >> David Miller wrote: >>> From: Larry Finger >>> Date: Mon, 21 Jul 2008 17:40:10 -0500 >>> >>>> Sorry :( >>>> >>>> I used the davem patch, the second version of your first one, and your second >>>> one. Both problems persist. >>>> >>>> Still plugging away on bisection. >>> GIT bisecting the lockdep problem is surely going the land you on: >>> >>> commit e308a5d806c852f56590ffdd3834d0df0cbed8d7 >> No. It landed on this one. > > For the lockdep warnings? No - this one triggers the kernel BUG as follows: ------------[ cut here ]------------ kernel BUG at net/core/dev.c:1328! invalid opcode: 0000 [1] SMP CPU 0 Modules linked in: af_packet rfkill_input nfs lockd nfs_acl sunrpc cpufreq_conservative cpufreq_userspace cpufreq_powersave powernow_k8 fuse loop dm_mod arc4 ecb crypto_blkcipher b43 firmware_class rfkill mac80211 cfg80211 led_class input_polldev k8temp sr_mod battery ac ssb button hwmon forcedeth cdrom serio_raw sg ohci_hcd ehci_hcd sd_mod usbcore edd fan thermal processor ext3 mbcache jbd pata_amd ahci libata scsi_mod dock Pid: 2003, comm: b43 Not tainted 2.6.26-rc8-Linus-git-01424-g37437bb #43 RIP: 0010:[] [] __netif_schedule+0x12/0x75 RSP: 0018:ffff8100b9e33de0 EFLAGS: 00010246 RAX: ffff8100b63819c0 RBX: ffffffff80545300 RCX: ffff8100b6381980 RDX: 00000000ffffffff RSI: 0000000000000001 RDI: ffffffff80545300 RBP: ffff8100b7b45158 R08: ffff8100b89d8000 R09: ffff8100b9d26000 R10: ffff8100b7b44480 R11: ffffffffa01239ef R12: ffff8100b7b44480 R13: ffff8100b9d26000 R14: ffff8100b89d8000 R15: 0000000000000000 FS: 00007f494406a6f0(0000) GS:ffffffff8055e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00007f49440933dc CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process b43 (pid: 2003, threadinfo ffff8100b9e32000, task ffff8100b4a3e480) Stack: ffff8100b7b45158 ffff8100b89d8900 ffff8100b7b45158 ffffffffa0158455 ffff8100ba3287c0 0000000000000246 0000000000000000 0000000000000000 ffff8100b9e33e70 ffff8100b7b451b8 ffff8100ba3287c0 ffff8100b7b451b0 Call Trace: [] ? :mac80211:ieee80211_scan_completed+0x25b/0x2e1 [] ? :mac80211:ieee80211_sta_scan_work+0x0/0x1b8 [] ? run_workqueue+0xf1/0x1f3 [] ? worker_thread+0xdb/0xea [] ? autoremove_wake_function+0x0/0x2e [] ? worker_thread+0x0/0xea [] ? kthread+0x47/0x73 [] ? trace_hardirqs_on_thunk+0x35/0x3a [] ? child_rip+0xa/0x12 [] ? restore_args+0x0/0x30 [] ? flat_send_IPI_mask+0x0/0x67 [] ? kthreadd+0x188/0x1ad [] ? kthreadd+0x188/0x1ad [] ? kthread+0x0/0x73 [] ? child_rip+0x0/0x12 Code: 00 00 75 0a 55 9d 5e 5b 5d e9 32 64 eb ff e8 21 73 eb ff 55 9d 59 5b 5d c3 55 53 48 89 fb 48 83 ec 08 48 81 ff 00 53 54 80 75 04 <0f> 0b eb fe 48 8d 47 30 f0 0f ba 28 01 19 d2 85 d2 75 4c 9c 5d RIP [] __netif_schedule+0x12/0x75 RSP ---[ end trace 396dc6bdf73da468 ]--- I'll have to trace back to see which of the bisections produced both the lockdep and the kernel bug. Larry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/