nfs4 client bug

[Bret Towe]

i encountered the following error while using nfs4
ive hit this error i think twice now not sure what causes it yet tho
this time the only io related items going on was emerge sync running
in the background (which shouldnt of touched nfs at all) and xmms
playing some music

another problem i had was iowait was showing near 100% but nothing
over nfs was working
but no errors or anything was showing in dmesg if i encounter this
again is there a way to
find out where it locked up so i can give a report on what the problem is?

attached is my config the box is an athlon64
if any further information is needed let me know

Unable to handle kernel paging request at 0000000000100108 RIP:
<ffffffff80189538>{generic_drop_inode+56}
PGD 27bec067 PUD 27be9067 PMD 0
Oops: 0002 [1]
CPU 0
Modules linked in: fglrx agpgart snd_seq_midi snd_emu10k1_synth
snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_pcm_oss
snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq snd_emu10k1
snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm snd_timer
snd_page_alloc snd_util_mem snd_hwdep snd w83627hf i2c_sensor i2c_isa
i2c_core usb_storage r8169 ehci_hcd uhci_hcd dm_mirror dm_snapshot
dm_mod
Pid: 149, comm: kswapd0 Tainted: P   M  2.6.13
RIP: 0010:[<ffffffff80189538>] <ffffffff80189538>{generic_drop_inode+56}
RSP: 0018:ffff81002f9d9b78  EFLAGS: 00010246
RAX: 0000000000100100 RBX: ffff810022d4d950 RCX: 0000000000200200
RDX: ffff810022d4d960 RSI: ffff81002ea21000 RDI: ffff810022d4d950
RBP: ffff810022d4d950 R08: 00000000fffffffa R09: ffff810022d4da68
R10: 0000000000000001 R11: ffffffff80189500 R12: 0000000000000000
R13: ffff810022d4d7d0 R14: ffff810022d4d860 R15: ffff81002c3cec00
FS:  00002aaaabc64f80(0000) GS:ffffffff805bc800(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000100108 CR3: 0000000027468000 CR4: 00000000000006e0
Process kswapd0 (pid: 149, threadinfo ffff81002f9d8000, task ffff81002f9d2760)
Stack: ffff81002a65fa00 ffffffff801e2925 000000012f9d9bf8 ffff81002f9d9c28
       ffffffffffffffff ffff81002f9d9c28 ffff81002f9d9c10 ffff810022d4d938
       0000000000000001 0000000000000000
Call Trace:<ffffffff801e2925>{__nfs_revalidate_inode+261}
<ffffffff80151dcf>{find_get_pages_tag+31}
       <ffffffff8015af2a>{pagevec_lookup_tag+26}
<ffffffff801517fe>{wait_on_page_writeback_range+206}
       <ffffffff801fc0ca>{nfs_do_return_delegation+42}
<ffffffff801fc1f5>{nfs_inode_return_delegation+197}
       <ffffffff801e3910>{nfs4_clear_inode+32}
<ffffffff8018839e>{clear_inode+158}
       <ffffffff80188fee>{dispose_list+94}
<ffffffff80189222>{shrink_icache_memory+434}
       <ffffffff8015b77b>{shrink_slab+219} <ffffffff8015cb99>{balance_pgdat+617}
       <ffffffff8015c932>{balance_pgdat+2} <ffffffff8015ce17>{kswapd+295}
       <ffffffff80144730>{autoremove_wake_function+0}
<ffffffff80144730>{autoremove_wake_function+0}
       <ffffffff8010f3e6>{child_rip+8} <ffffffff8015ccf0>{kswapd+0}
       <ffffffff8010f3de>{child_rip+0}

Code: 48 89 48 08 48 89 01 48 8b 05 8a 4e 30 00 48 89 50 08 48 89
RIP <ffffffff80189538>{generic_drop_inode+56} RSP <ffff81002f9d9b78>
CR2: 0000000000100108
 ----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at "fs/inode.c":1142
invalid operand: 0000 [2]
CPU 0
Modules linked in: fglrx agpgart snd_seq_midi snd_emu10k1_synth
snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_pcm_oss
snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq snd_emu10k1
snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm snd_timer
snd_page_alloc snd_util_mem snd_hwdep snd w83627hf i2c_sensor i2c_isa
i2c_core usb_storage r8169 ehci_hcd uhci_hcd dm_mirror dm_snapshot
dm_mod
Pid: 9539, comm: rpciod/0 Tainted: P   M  2.6.13
RIP: 0010:[<ffffffff8018853e>] <ffffffff8018853e>{iput+30}
RSP: 0018:ffff81002a181e08  EFLAGS: 00010246
RAX: ffffffff80494a00 RBX: ffff810023da8d40 RCX: ffff81002311f490
RDX: ffff810022919680 RSI: ffff81002614da40 RDI: ffff810023da8d40
RBP: ffff8100286af780 R08: ffff8100230f64e0 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff801f8c90 R12: ffff81002311f480
R13: ffff81002614da00 R14: ffff81002c3cec00 R15: ffffffff805c3fb0
FS:  00002aaaaade6b00(0000) GS:ffffffff805bc800(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00002aaaaade0680 CR3: 0000000022d19000 CR4: 00000000000006e0
Process rpciod/0 (pid: 9539, threadinfo ffff81002a180000, task ffff81002a4a2330)
Stack: ffff81002311f480 ffffffff801fb0fd 00000000fffffff3 ffff81002fb0f1c0
       ffff8100286af780 ffffffff801efa51 ffff81002fb0f1c0 ffff81002d9be310
       ffff81002fb0f2a8 ffff81002d9be320
Call Trace:<ffffffff801fb0fd>{nfs4_put_open_state+109}
<ffffffff801efa51>{nfs4_close_done+225}
       <ffffffff803940a5>{__rpc_execute+165}
<ffffffff8014046a>{worker_thread+442}
       <ffffffff8012e060>{default_wake_function+0}
<ffffffff8012e060>{default_wake_function+0}
       <ffffffff801402b0>{worker_thread+0} <ffffffff8014424d>{kthread+205}
       <ffffffff8010f3e6>{child_rip+8}
<ffffffff80144290>{keventd_create_kthread+0}
       <ffffffff80144180>{kthread+0} <ffffffff8010f3de>{child_rip+0}


Code: 0f 0b a3 e0 61 3c 80 ff ff ff ff c2 76 04 66 66 66 90 48 85
RIP <ffffffff8018853e>{iput+30} RSP <ffff81002a181e08>

Attachment: ghoststar-config
Description: Binary data