Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750758AbVLKRyi (ORCPT ); Sun, 11 Dec 2005 12:54:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750761AbVLKRyh (ORCPT ); Sun, 11 Dec 2005 12:54:37 -0500 Received: from xenotime.net ([66.160.160.81]:53694 "HELO xenotime.net") by vger.kernel.org with SMTP id S1750758AbVLKRyh (ORCPT ); Sun, 11 Dec 2005 12:54:37 -0500 Date: Sun, 11 Dec 2005 09:55:06 -0800 From: "Randy.Dunlap" To: Andrew Morton Cc: ashutosh.naik@gmail.com, linux-kernel@vger.kernel.org, greg@kroah.com Subject: Re: [BUG] Early Kernel Panic with 2.6.15-rc5 Message-Id: <20051211095506.176a26ae.rdunlap@xenotime.net> In-Reply-To: <20051210223453.24f7515b.akpm@osdl.org> References: <81083a450512102211r608cee8wc16cc19565a1488f@mail.gmail.com> <20051210223453.24f7515b.akpm@osdl.org> Organization: YPO4 X-Mailer: Sylpheed version 1.0.5 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2737 Lines: 71 On Sat, 10 Dec 2005 22:34:53 -0800 Andrew Morton wrote: > Ashutosh Naik wrote: > > > > Distribution: > > Fedora Core 2, 2.6.15-rc5 kernel > > > > Hardware Environment: > > Acer Travelmate 240 ,Intel Celeron 2.6 Ghz, lspci with 2.6.14 attached > > > > Description > > I am getting an early kernel panic when I compiled the Kernel > > 2.6.15-rc5 on my Acer Laptop. The dump is as follows. It is > > reproducible every time on bootup. > > > > Uncompressing Linux... Ok, booting the kernel. > > Unable to handle kernel NULL pointer dereference at virtual address 00000000 > > printing eip: > > *pde = 00000000 > > Oops: 0002 [#1] > > PREEMPT > > Modules linked in : > > CPU: 0 > > EIP: 0060:[] Not tainted VLI > > EFLAGS: 00010292 (2.6.15-rc5) > > EIP is at kobject_add+0x94/0xd0 > > eax: c0455d80 ebx: c0455b4c ecx: 00000000 edx: c0455b68 > > esi: ffffffea edi: c0455d88 ebp: 00000000 esp: c6e8bf4c > > ds: 007b es: 007b ss: 0068 > > Process swapper (pid = 1 threadinfo = c6e8a00 task = c6e88a50) > > Stack : c0455b4c ffffffea c0455d20 c020e4f2 00000000 c0455b38 c0455b4c c0455b38 > > c0455b4c c0294b12 c0455b4c c040e7c2 c03cdd36 c0455b38 00000000 00000000 > > 00000000 c0295542 00000000 c021fa65 c011d377 c0411638 00000000 c04ed0dc > > Call Trace: > > [] kobject_register+0x22/0x70 > > [] bus_add_driver+0x52/0xc0 > > [] driver_register+0x32/0x40 > > [] pcie_start_thread+0x15/0x60 > > [] printk+0x17/0x20 > > [] pcied_init+0x1c/0xa0 > > [] pci_proc_init+0x65/0x70 > > [] do_init_calls+0x2b/0xc0 > > [] init+0x0/0x160 > > [] init+0x0/0x160 > > [] init+0x37/0x160 > > [] kernel_thread_helper+0x5/0xc > > Code: 74 df 89 f8 e8 ce 02 00 00 eb d6 b8 01 00 00 00 e8 42 af f0 ff 85 ff 74 36 > > 8b 43 28 8d 53 1c 83 c0 08 89 43 1c 8b 48 04 89 50 04 <89> 11 89 4a 04 b8 01 00 > > 00 00 e8 5d af f0 ff b8 00 e0 ff ff 21 > > <0>Kernel panic - not syncing: Attempted to kill init! > > > > Looks like this: > > list_add_tail(&kobj->entry,&kobj->kset->list); > > went oops over null pointers in kobj->kset->list. > > At a wild guess, I'd say that pcie_port_bus_register() hasn't run yet. I reported this about 2 weeks ago. Rajesh (iirc) says that it's a timing issue and he is reworking some of the init code... (like Greg said, it won't be fixed real quickly). --- ~Randy - 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/