kernel crashes on nfs4

[Frank Denissen]

Kernel crashes after logging in KDE. The problem only occurs with the new version 3.0.0-19-generic-pae and not with 3.0.0-17-generic-pae

The problem is reproducable: it occurs every time. The kernel log contains many crashes of the same kind.

May 3 15:42:45 panter kernel: [ 48.154078] BUG: unable to handle kernel paging request at ffffffdc
May 3 15:42:45 panter kernel: [ 48.154103] IP: [<f872d458>] nfs_have_delegation+0x8/0x30 [nfs]
May 3 15:42:45 panter kernel: [ 48.154139] *pdpt = 00000000018b4001 *pde = 00000000018b9067 *pte = 0000000000000000
May 3 15:42:45 panter kernel: [ 48.154153] Oops: 0000 [#1] SMP
May 3 15:42:45 panter kernel: [ 48.154161] Modules linked in: binfmt_misc act_police cls_flow cls_fw cls_u32 sch_htb sch_hfsc sch_ingress sch_sfq xt_time xt_connlimit xt_realm xt_addrtype autofs4 iptable_raw xt_comment xt_recent xt_policy ipt_ULOG ipt_REJECT ipt_REDIRECT ipt_NETMAP ipt_MASQUERADE ipt_ECN ipt_ecn ipt_CLUSTERIP ipt_ah nf_nat_tftp nf_nat_snmp_basic nf_conntrack_snmp nf_nat_sip nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat_amanda ts_kmp nf_conntrack_amanda nf_conntrack_sane nf_conntrack_tftp nf_conntrack_sip nf_conntrack_proto_sctp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp xt_tcpmss xt_pkttype xt_physdev xt_owner xt_NFQUEUE xt_NFLOG nfnetlink_log xt_multiport xt_mark xt_mac xt_limit xt_length xt_iprange xt_helper xt_hashlimit xt_DSCP xt_dscp xt_dccp xt_conntrack xt_connmark xt_CLASSIFY ipt_LOG xt_tcpudp xt_state iptable_nat nf_nat nf_conntrack_ipv4 nf_defr
May 3 15:42:45 panter kernel: ag_ipv4 nf_conntrack iptable_mangle nfnetlink iptable_filter ip_tables x_tables snd_hda_codec_realtek nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc snd_hda_intel snd_hda_codec snd_hwdep snd_pcm nouveau snd_seq_midi snd_rawmidi ppdev ttm snd_seq_midi_event drm_kms_helper drm snd_seq snd_timer snd_seq_device i2c_algo_bit mxm_wmi wmi k8temp parport_pc video snd soundcore nv_tco snd_page_alloc i2c_nforce2 lp parport usbhid usb_storage hid uas forcedeth pata_amd sata_nv
May 3 15:42:45 panter kernel: [ 48.154427]
May 3 15:42:45 panter kernel: [ 48.154432] Pid: 3974, comm: knotes Not tainted 3.0.0-19-generic-pae #33~lucid1-Ubuntu MSI MS-7260/MS-7260
May 3 15:42:45 panter kernel: [ 48.154447] EIP: 0060:[<f872d458>] EFLAGS: 00210246 CPU: 0
May 3 15:42:45 panter kernel: [ 48.154469] EIP is at nfs_have_delegation+0x8/0x30 [nfs]
May 3 15:42:45 panter kernel: [ 48.154476] EAX: 00000000 EBX: eecfbf2c ECX: ef9ffa00 EDX: 00000001
May 3 15:42:45 panter kernel: [ 48.154483] ESI: f10ce800 EDI: f1012480 EBP: eecfbef8 ESP: eecfbef8
May 3 15:42:45 panter kernel: [ 48.154490] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
May 3 15:42:45 panter kernel: [ 48.154498] Process knotes (pid: 3974, ti=eecfa000 task=f4ba1980 task.ti=eecfa000)
May 3 15:42:45 panter kernel: [ 48.154505] Stack:
May 3 15:42:45 panter kernel: [ 48.154509] eecfbf1c f871e8f0 f4f74200 00000007 ef9ffa00 00000000 f4b55068 f1012480
May 3 15:42:45 panter kernel: [ 48.154527] 00000007 eecfbf48 f87230fe f4ba1980 000000fa 00000000 00000000 f1012480
May 3 15:42:45 panter kernel: [ 48.154544] 00000000 f8733700 f17439c0 ef05ae2c eecfbf64 f8708499 f4b55068 00000007
May 3 15:42:45 panter kernel: [ 48.154562] Call Trace:
May 3 15:42:45 panter kernel: [ 48.154581] [<f871e8f0>] nfs4_handle_exception+0x230/0x2c0 [nfs]
May 3 15:42:45 panter kernel: [ 48.154602] [<f87230fe>] nfs4_proc_lock+0xee/0x180 [nfs]
May 3 15:42:45 panter kernel: [ 48.154619] [<f8708499>] do_setlk+0xb9/0xd0 [nfs]
May 3 15:42:45 panter kernel: [ 48.154635] [<f87084b0>] ? do_setlk+0xd0/0xd0 [nfs]
May 3 15:42:45 panter kernel: [ 48.154650] [<f8708526>] nfs_flock+0x76/0xe0 [nfs]
May 3 15:42:45 panter kernel: [ 48.154661] [<c11763a7>] ? locks_alloc_lock+0x17/0x70
May 3 15:42:45 panter kernel: [ 48.154677] [<f87084b0>] ? do_setlk+0xd0/0xd0 [nfs]
May 3 15:42:45 panter kernel: [ 48.154685] [<c117682e>] sys_flock+0xde/0x160
May 3 15:42:45 panter kernel: [ 48.154693] [<c155db5f>] sysenter_do_call+0x12/0x28
May 3 15:42:45 panter kernel: [ 48.154699] Code: e9 48 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 89 e5 3e 8d 74 26 00 3e 80 48 34 04 5d c3 90 55 89 e5 3e 8d 74 26 00 <8b> 40 dc 85 c0 74 0c 8b 48 20 83 e2 03 21 d1 39 d1 74 05 31 c0
May 3 15:42:45 panter kernel: [ 48.154793] EIP: [<f872d458>] nfs_have_delegation+0x8/0x30 [nfs] SS:ESP 0068:eecfbef8
May 3 15:42:45 panter kernel: [ 48.154818] CR2: 00000000ffffffdc
May 3 15:42:45 panter kernel: [ 48.161303] ---[ end trace 34401e905bc8db39 ]---

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-generic-pae-lts-backport-oneiric 3.0.0.19.7
ProcVersionSignature: Ubuntu 3.0.0-17.30~lucid1-generic-pae 3.0.22
Uname: Linux 3.0.0-17-generic-pae i686
Architecture: i386
Date: Thu May 3 18:42:04 2012
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=nl_BE.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-meta-lts-backport-oneiric

[dino99 (9d9)]

version no more supported; not a 'security' problem, so no backport expected