Return-Path: linux-nfs-owner@vger.kernel.org Received: from connotech.com ([76.10.176.241]:52140 "EHLO mail.connotech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751217Ab3A2Vud (ORCPT ); Tue, 29 Jan 2013 16:50:33 -0500 Message-ID: <51084428.6080302@connotech.com> Date: Tue, 29 Jan 2013 16:50:32 -0500 From: Thierry Moreau MIME-Version: 1.0 To: "J. Bruce Fields" CC: linux-nfs@vger.kernel.org Subject: Re: Kernel message when no support for NFSv4 compiled into it References: <510812C0.1070307@connotech.com> <20130129194729.GC4209@fieldses.org> <51084167.8060802@connotech.com> In-Reply-To: <51084167.8060802@connotech.com> Content-Type: text/plain; charset=us-ascii; format=flowed Sender: linux-nfs-owner@vger.kernel.org List-ID: Oh, I got the kernel log for the very first occurrence of this symptom, this time with what-looks-like kernel symbols (BUG at 14:17:52): - Thierry Jan 29 14:06:04 host----name kernel: Adding 1542204k swap on /dev/sda7. Priority:62 extents:1 across:1542204k Jan 29 14:06:04 host----name kernel: NET: Registered protocol family 10 Jan 29 14:17:52 host----name kernel: RPC: Registered named UNIX socket transport module. Jan 29 14:17:52 host----name kernel: RPC: Registered udp transport module. Jan 29 14:17:52 host----name kernel: RPC: Registered tcp transport module. Jan 29 14:17:52 host----name kernel: RPC: Registered tcp NFSv4.1 backchannel transport module. Jan 29 14:17:52 host----name kernel: Installing knfsd (copyright (C) 1996 okir@monad.swb.de). Jan 29 14:17:52 host----name kernel: BUG: unable to handle kernel paging request at 01ffffff Jan 29 14:17:52 host----name kernel: IP: [] rpcauth_lookupcred+0x30/0x66 [sunrpc] Jan 29 14:17:52 host----name kernel: *pde = 00000000 Jan 29 14:17:52 host----name kernel: Oops: 0002 [#1] SMP Jan 29 14:17:52 host----name kernel: Modules linked in: nfsd exportfs lockd sunrpc ipv6 dm_mod snd_via82xx snd_mpu401_uart snd_rawmidi snd_ac97_codec ac97_bus snd_pcm snd_page_alloc 8250_pnp snd_timer snd soundcore ehci_hcd uhci_hcd sr_mod usbcore usb_common cdrom floppy 8250 parport_pc serial_core parport via_rhine via_agp agpgart Jan 29 14:17:52 host----name kernel: Jan 29 14:17:52 host----name kernel: Pid: 6769, comm: rpc.nfsd Not tainted 3.5.4 #3 PCCHIPS P25G/P4M800-8237 Jan 29 14:17:52 host----name kernel: EIP: 0060:[] EFLAGS: 00010246 CPU: 0 Jan 29 14:17:52 host----name kernel: EIP is at rpcauth_lookupcred+0x30/0x66 [sunrpc] Jan 29 14:17:52 host----name kernel: EAX: 01ffffff EBX: ccce3a80 ECX: 00000000 EDX: 00000000 Jan 29 14:17:53 host----name kernel: ESI: ccce3c00 EDI: cc261dc8 EBP: cef3e204 ESP: cc261db4 Jan 29 14:17:53 host----name kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Jan 29 14:17:53 host----name kernel: CR0: 8005003b CR2: 01ffffff CR3: 0c258000 CR4: 00000790 Jan 29 14:17:53 host----name kernel: DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 Jan 29 14:17:53 host----name kernel: DR6: ffff0ff0 DR7: 00000400 Jan 29 14:17:53 host----name kernel: Process rpc.nfsd (pid: 6769, ti=cc260000 task=cdb95440 task.ti=cc260000) Jan 29 14:17:53 host----name kernel: Stack: Jan 29 14:17:53 host----name kernel: 00000000 00000000 00000000 00000000 00000000 ccce3a80 ccce3a80 00000000 Jan 29 14:17:53 host----name kernel: cdaeab00 cef301a6 cef2c068 ccce3a80 cef2c7f3 cdb7ba64 00000000 ccce3ab8 Jan 29 14:17:53 host----name kernel: ccce3a80 00000000 cdaaa000 cef2f5e7 ccce3ab8 c102c9af ccce3a80 cc261e2c Jan 29 14:17:53 host----name kernel: Call Trace: Jan 29 14:17:53 host----name kernel: [] ? rpcauth_refreshcred+0x5a/0x95 [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? xprt_release_xprt+0x31/0x3f [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? xprt_reserve+0x184/0x1ad [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? __rpc_execute+0x34/0x158 [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? wake_up_bit+0xb/0x16 Jan 29 14:17:53 host----name kernel: [] ? rpc_run_task+0x57/0x5c [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? rpc_call_sync+0x39/0x54 [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? rpcb_register_call+0x11/0x20 [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? rpcb_v4_register+0x82/0xed [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? svc_unregister.isra.15+0x3c/0x98 [sunrpc] Jan 29 14:17:53 host----name kernel: [] ? write_filehandle+0x14b/0x14b [nfsd] Jan 29 14:17:53 host----name kernel: [] ? svc_rpcb_setup+0x1f/0x25 [sunrpc] Jan 29 14:17:54 host----name kernel: [] ? nfsd_create_serv+0xba/0x10a [nfsd] Jan 29 14:17:54 host----name kernel: [] ? simple_strtoull+0x23/0x3f Jan 29 14:17:54 host----name kernel: [] ? export_features_show+0x18/0x18 [nfsd] Jan 29 14:17:54 host----name kernel: [] ? write_ports+0x99/0x2be [nfsd] Jan 29 14:17:54 host----name kernel: [] ? get_random_bytes+0x12/0x15 Jan 29 14:17:54 host----name kernel: [] ? _raw_write_lock_bh+0x9/0x1c Jan 29 14:17:54 host----name kernel: [] ? simple_transaction_get+0x66/0x80 Jan 29 14:17:54 host----name kernel: [] ? export_features_show+0x18/0x18 [nfsd] Jan 29 14:17:54 host----name kernel: [] ? nfsctl_transaction_write+0x37/0x51 [nfsd] Jan 29 14:17:54 host----name kernel: [] ? vfs_write+0x7b/0xf3 Jan 29 14:17:54 host----name kernel: [] ? sys_write+0x38/0x65 Jan 29 14:17:54 host----name kernel: [] ? sysenter_do_call+0x12/0x26 Jan 29 14:17:54 host----name kernel: Code: 00 57 89 c5 56 53 83 ec 14 64 a1 b8 45 31 c1 89 e7 8b b0 c4 01 00 00 31 c0 f3 ab 8b 46 1c 89 04 24 8b 46 20 89 44 24 04 8b 46 60 <3e> ff 00 8b 75 10 89 d1 89 e2 89 44 24 08 89 e8 ff 56 14 8b 54 Jan 29 14:17:54 host----name kernel: EIP: [] rpcauth_lookupcred+0x30/0x66 [sunrpc] SS:ESP 0068:cc261db4 Jan 29 14:17:54 host----name kernel: CR2: 0000000001ffffff Jan 29 14:17:54 host----name kernel: ---[ end trace 7dad9f92a03954c6 ]--- --- end of message ---