Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263022AbVCJTLL (ORCPT ); Thu, 10 Mar 2005 14:11:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262783AbVCJTDK (ORCPT ); Thu, 10 Mar 2005 14:03:10 -0500 Received: from citi.umich.edu ([141.211.133.111]:49760 "EHLO citi.umich.edu") by vger.kernel.org with ESMTP id S262866AbVCJSyR (ORCPT ); Thu, 10 Mar 2005 13:54:17 -0500 Message-ID: <423097D5.30605@citi.umich.edu> Date: Thu, 10 Mar 2005 13:54:13 -0500 From: Chuck Lever Reply-To: cel@citi.umich.edu Organization: Network Appliance, Inc. User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: netdev@oss.sgi.com Cc: linux-kernel@vger.kernel.org Subject: 2.6.11 oops in skb_drop_fraglist Content-Type: multipart/mixed; boundary="------------060206010409030806030001" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4898 Lines: 128 This is a multi-part message in MIME format. --------------060206010409030806030001 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit testing NFS client workloads on a dual Pentium-III system running 2.6.11 with some NFS patches. i hit this oops while doing simple-minded ftps and tars. the system locks up once or twice a day under this workload. this is the first time i had the console and captured the oops output. Unable to handle kernel NULL pointer dereference at virtual address 00000001 printing eip: c02fc752 *pde = 00000000 Oops: 0000 [#1] SMP CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010202 (2.6.11-CITI_NFS4_ALL-1) EIP is at skb_drop_fraglist+0x22/0x50 eax: f6fe26e0 ebx: 00000001 ecx: f6fe26e0 edx: 00000001 esi: f6f29240 edi: 00000004 ebp: f697ed24 esp: c04cadd8 ds: 007b es: 007b ss: 0068 Process swapper (pid: 0, threadinfo=c04ca000 task=c03efb60) Stack: 00000001 c02fc7fa f6f29240 f697ecc0 c02fc838 00000000 c02fc8ba ccbf2ab0 00000b50 c0326a16 f6f87740 f6f29240 f6f29240 c0321c4a 00000020 f6f87778 f6f87740 f697ecc0 f69d1560 00625a79 c04cae6c 00000000 00000012 f697ecc0 Call Trace: [] skb_release_data+0x5a/0x90 [] kfree_skbmem+0x8/0x20 [] __kfree_skb+0x6a/0xf0 [] tcp_transmit_skb+0x406/0x720 [] tcp_clean_rtx_queue+0x17a/0x410 [] tcp_ack+0xf6/0x580 [] tcp_rcv_established+0x409/0x7f0 [] apic_timer_interrupt+0x1c/0x24 [] tcp_v4_do_rcv+0x110/0x120 [] tcp_v4_rcv+0x6bf/0x940 [] ip_local_deliver+0xc2/0x1f0 [] ip_rcv+0x336/0x450 [] alloc_skb+0x41/0xf0 [] netif_receive_skb+0x136/0x1a0 [] e1000_clean_rx_irq+0x15e/0x4a0 [] __kfree_skb+0x6a/0xf0 [] e1000_clean+0xba/0xf0 [] net_rx_action+0x6f/0x100 [] __do_softirq+0xb9/0xd0 [] do_softirq+0x4a/0x60 c02fc730: 53 push %ebx c02fc731: 8b 80 94 00 00 00 mov 0x94(%eax),%eax c02fc737: 8b 58 0c mov 0xc(%eax),%ebx c02fc73a: c7 40 0c 00 00 00 00 movl $0x0,0xc(%eax) c02fc741: eb 0d jmp c02fc750 c02fc743: 90 nop c02fc744: 90 nop c02fc745: 90 nop c02fc746: 90 nop c02fc747: 90 nop c02fc748: 90 nop c02fc749: 90 nop c02fc74a: 90 nop c02fc74b: 90 nop c02fc74c: 90 nop c02fc74d: 90 nop c02fc74e: 90 nop c02fc74f: 90 nop c02fc750: 89 da mov %ebx,%edx c02fc752: 8b 1b mov (%ebx),%ebx c02fc754: 8b 82 84 00 00 00 mov 0x84(%edx),%eax c02fc75a: 48 dec %eax c02fc75b: 75 13 jne c02fc770 c02fc75d: f0 83 44 24 00 00 lock addl $0x0,0x0(%esp,1) c02fc763: 89 d0 mov %edx,%eax c02fc765: e8 e6 00 00 00 call c02fc850 <__kfree_skb> c02fc76a: 85 db test %ebx,%ebx c02fc76c: 75 e2 jne c02fc750 c02fc76e: 5b pop %ebx c02fc76f: c3 ret c02fc770: f0 ff 8a 84 00 00 00 lock decl 0x84(%edx) c02fc777: 0f 94 c0 sete %al c02fc77a: 84 c0 test %al,%al c02fc77c: 74 ec je c02fc76a c02fc77e: eb e3 jmp c02fc763 --------------060206010409030806030001 Content-Type: text/x-vcard; charset=utf-8; name="cel.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="cel.vcf" begin:vcard fn:Chuck Lever n:Lever;Charles org:Network Appliance, Incorporated;Linux NFS Client Development adr:535 West William Street, Suite 3100;;Center for Information Technology Integration;Ann Arbor;MI;48103-4943;USA email;internet:cel@citi.umich.edu title:Member of Technical Staff tel;work:+1 734 763-4415 tel;fax:+1 734 763 4434 tel;home:+1 734 668-1089 x-mozilla-html:FALSE url:http://www.monkey.org/~cel/ version:2.1 end:vcard --------------060206010409030806030001-- - 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/