Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750905AbVIWMPm (ORCPT ); Fri, 23 Sep 2005 08:15:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750906AbVIWMPm (ORCPT ); Fri, 23 Sep 2005 08:15:42 -0400 Received: from web8509.mail.in.yahoo.com ([202.43.219.171]:58024 "HELO web8509.mail.in.yahoo.com") by vger.kernel.org with SMTP id S1750903AbVIWMPm (ORCPT ); Fri, 23 Sep 2005 08:15:42 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.in; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=aDGdKidNLb2Dtt2q3gJ9sD8q80NRLZi/rKv65qYAsARfYFds8pATcHhif8ukbAShbFRS5pkTh1kv+Z3NmpnmF35MLJykw1YjbhrvTtHi0RRzniWW4Yz0p3EyFWgE887HOIvsLhD5eSX7HQL+hsmtA6qKszT0fGbpb6HGwH8SjHA= ; Message-ID: <20050923121538.88627.qmail@web8509.mail.in.yahoo.com> Date: Fri, 23 Sep 2005 13:15:38 +0100 (BST) From: manomugdha biswas Subject: kernel 2.6 panic To: linux-kernel@vger.kernel.org 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: 2894 Lines: 79 Hi, I have a kernel module. I can install (insmod) my module successfully. I start my module by ioctl() from user application and also use ioctl() to stop my module from user application. But sometimes after removing (stoping) my module kernel panic happens. Following is the dump: Sep 23 02:40:09 localhost kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000025 Sep 23 02:40:09 localhost kernel: printing eip: Sep 23 02:40:09 localhost kernel: c0163516 Sep 23 02:40:09 localhost kernel: *pde = 00000000 Sep 23 02:40:09 localhost kernel: Oops: 0000 [#1] Sep 23 02:40:09 localhost kernel: Modules linked in: vnicclient(U) i915 parport_pc lp parport autofs4 i2c_dev i2c_core sunrpc dm_mod button battery ac md5 ipv6 uhci_hcd ehci_hcd snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore e100 mii floppy ext3 jbd Sep 23 02:40:09 localhost kernel: CPU: 0 Sep 23 02:40:09 localhost kernel: EIP: 0060:[] Not tainted VLI Sep 23 02:40:09 localhost kernel: EFLAGS: 00010202 (2.6.9-11.EL) Sep 23 02:40:09 localhost kernel: EIP is at sys_read+0x1d/0x62 Sep 23 02:40:09 localhost kernel: eax: 00000001 ebx: 00000001 ecx: f2067380 edx: 00000001 Sep 23 02:40:09 localhost kernel: esi: fffffff7 edi: 00000000 ebp: f29e5000 esp: f29e5fac Sep 23 02:40:09 localhost kernel: ds: 007b es: 007b ss: 0068 Sep 23 02:40:09 localhost kernel: Process bash (pid: 10171, threadinfo=f29e5000 task=f21111a0) Sep 23 02:40:09 localhost kernel: Stack: 00000000 00000000 00000000 00000000 bffdcbaf c03036f3 00000000 bffdcbaf Sep 23 02:40:09 localhost kernel: 00000001 bffdcbaf 00000000 bffdcbb8 00000003 0000007b 0000007b 00000003 Sep 23 02:40:09 localhost kernel: 006e77a2 00000073 00000246 bffdcb94 0000007b Sep 23 02:40:09 localhost kernel: Call Trace: Sep 23 02:40:09 localhost kernel: [] syscall_call+0x7/0xb Sep 23 02:40:09 localhost kernel: Code: 00 e8 ed fc 01 00 89 d8 5d 5b 5e 5f 5d c3 56 be f7 ff ff ff 53 83 ec 0c 8b 44 24 18 8d 54 24 08 e8 8c 0d 00 00 85 c0 89 c3 74 3d <8b> 40 24 8b 53 28 89 04 24 89 e0 89 54 24 04 50 8b 54 24 20 89 Sep 23 02:40:09 localhost kernel: <0>Fatal exception: panic in 5 seconds vnicclient is my module. Could you please tell me what is meant by "Not tainted VLI" ? This is happening after comming out my module. Could you please give some light on this issue? Thanks and Regards, Mano Manomugdha Biswas __________________________________________________________ Yahoo! India Matrimony: Find your partner now. Go to http://yahoo.shaadi.com - 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/