From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261500AbUEFIIj (ORCPT ); Thu, 6 May 2004 04:08:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261582AbUEFIIj (ORCPT ); Thu, 6 May 2004 04:08:39 -0400 Received: from skynet06.in-ulm.de ([217.10.0.16]:61861 "EHLO skynet06.in-ulm.de") by vger.kernel.org with ESMTP id S261500AbUEFIIe (ORCPT ); Thu, 6 May 2004 04:08:34 -0400 Message-ID: <1083830912.4099f280db57d@skynet06.in-ulm.de> Date: Thu, 6 May 2004 10:08:32 +0200 From: Simon Natterer To: linux-kernel@vger.kernel.org Subject: Re: ISDN/Capi Driver or PPP problem References: <409964EE.4090805@natterer-legau.de> In-Reply-To: <409964EE.4090805@natterer-legau.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT User-Agent: Internet Messaging Program (IMP) 3.2.2 X-Originating-IP: 53.122.197.194 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Simon Natterer wrote: > I've got a problem with Kernel 2.6.6-rc2 and my AVM-B1 PCI card > together with a PPP connection. > When using Asterisk PBX I've got strange problems like dropped > connections (ppp) or hangups. > I captured this oops: Sorry for the disrupted OOps file, here it is again: Unable to handle kernel NULL pointer dereference at virtual address 00000004 printing eip: d0a6dff3 *pde = 00000000 Oops: 0002 [#1] PREEMPT CPU: 0 Stack: 00000004 00000000 00000001 41210a28 00000000 c4465180 c44651a0 00 EFLAGS: 00010046 (2.6.6-rc2) EIP is at capi_read+0x53/0x220 [capi] eax: 00000000 ebx: cb3e9c80 ecx: 00000004 edx: 00000206 esi: ca70c000 edi: c6315530 ebp: c63154a0 esp: ca70df54 ds: 007b es: 007b ss: 0068 Process asterisk (pid: 8087, threadinfo=ca70c000 task=cd3e2e90) Stack: 00000004 00000000 00000001 41210a28 00000000 c4465180 c44651a0 00000880 c015201d c4465180 080f2168 00000880 c44651a0 c31758e0 00000009 c4465180 fffffff7 00000003 ca70c000 c01522f2 c4465180 080f2168 00000880 c44651a0 Call Trace: [vfs_read+237/352] vfs_read+0xed/0x160 [sys_read+66/112] sys_read+0x42/0x70 [syscall_call+7/11] syscall_call+0x7/0xb Code: 89 78 04 89 85 90 00 00 00 c7 43 04 00 00 00 00 c7 03 00 00 <6>note: asterisk[8087] exited with preempt_count 1 capilib_new_ncci: kcapi: appl 4 ncci 0x20201 up Unable to handle kernel paging request at virtual address 7b230b2a printing eip: c029a2f4 *pde = 00000000 Oops: 0000 [#2] PREEMPT CPU: 0 EIP: 0060:[skb_release_data+68/176] Not tainted EFLAGS: 00010297 (2.6.6-rc2) EIP is at skb_release_data+0x44/0xb0 eax: c88b7480 ebx: 00000000 ecx: c88b7480 edx: 7b230b2a esi: cda066a0 edi: cc183ec8 ebp: 00000057 esp: cc183d6c ds: 007b es: 007b ss: 0068 Process pppoe (pid: 20338, threadinfo=cc182000 task=c5150d10) Stack: c029c3d4 cda066a0 cda066e8 c029a373 cda066a0 00000000 00000000 c029a433 cda066a0 000005f0 cc183f34 cda066a0 d0a3183b cda066a0 cda066a0 cc183ea8 00000057 c02b8bd0 cffcd6a0 00000057 00000000 000005f0 cc183f34 cc183de4 Call Trace: [skb_copy_datagram_iovec+84/576] skb_copy_datagram_iovec+0x54/0x240 [kfree_skbmem+19/48] kfree_skbmem+0x13/0x30 [__kfree_skb+163/320] __kfree_skb+0xa3/0x140 [__crc_copy_strings_kernel+1461661/3318524] packet_recvmsg+0x12b/0x160 [af_packet] [ip_rcv_finish+0/640] ip_rcv_finish+0x0/0x280 [sock_recvmsg+150/192] sock_recvmsg+0x96/0xc0 [ip_rcv_finish+0/640] ip_rcv_finish+0x0/0x280 [__crc_copy_strings_kernel+1427723/3318524] ppp_receive_nonmp_frame+0x1a9/0x620 [ppp_generic] [netif_receive_skb+443/544] netif_receive_skb+0x1bb/0x220 [recalc_task_prio+168/464] recalc_task_prio+0xa8/0x1d0 [schedule+813/1472] schedule+0x32d/0x5c0 [sockfd_lookup+28/128] sockfd_lookup+0x1c/0x80 [sys_recvfrom+178/288] sys_recvfrom+0xb2/0x120 [poll_freewait+68/80] poll_freewait+0x44/0x50 [do_select+431/720] do_select+0x1af/0x2d0 [sys_recv+51/64] sys_recv+0x33/0x40 [sys_socketcall+356/608] sys_socketcall+0x164/0x260 [syscall_call+7/11] syscall_call+0x7/0xb Code: 8b 02 f6 c4 08 75 17 8b 42 04 85 c0 74 4a ff 4a 04 0f 94 c0 <6>kcapi: appl 4 ncci 0x20201 down