hi,all.yesterday I found our NAS-R3 was wrong,the logical volume losted,only can see lv0000 and the size was only 0.34GB.here is some error logs:

2010/08/14 18:21:30 [] xfs_bmap_search_extents+0x4f/0xf0
2010/08/14 18:21:30 [] __kfree_skb+0x8/0x10
2010/08/14 18:21:30 Pid: 16292, comm: smbd Not tainted 2.6.25.13-oe32 #61
2010/08/14 18:30:36 [] netif_receive_skb+0x218/0x250
2010/08/14 18:30:36 [] ip_rcv+0x18d/0x290
2010/08/14 18:46:31 [] net_rx_action+0x7a/0x150
2010/08/14 18:24:46 [] __alloc_pages+0x49/0x330
2010/08/14 18:24:46 [] get_page_from_freelist+0x79/0xc0
2010/08/14 18:48:48 [] xfs_vn_permission+0x0/0x10
2010/08/14 18:48:48 [] do_lookup+0x38/0xb0
2010/08/14 19:09:16 [] xfs_attr_leaf_get+0x6c/0x90
2010/08/14 19:09:16 [] _atomic_dec_and_lock+0x2b/0x50
2010/08/14 19:21:47 [] tcp_rtt_estimator+0x9f/0x110
2010/08/14 19:30:53 [] _xfs_buf_lookup_pages+0x218/0x320
2010/08/14 18:21:30 [] abituguru_detect_no_pwms+0x220/0x260
2010/08/14 18:21:30 =======================
2010/08/14 18:21:30 [] syscall_call+0x7/0xb
2010/08/14 18:21:30 [] sys_mkdir+0x11/0x20
2010/08/14 18:21:30 [] sys_mkdirat+0x8f/0xc0
2010/08/14 18:21:30 [] vfs_mkdir+0x89/0x110
2010/08/14 18:21:30 [] xfs_vn_mkdir+0xa/0x10
2010/08/14 18:21:30 [] xfs_vn_mknod+0x1ce/0x2b0
2010/08/14 18:21:30 [] xfs_acl_get_attr+0x3d/0x60
2010/08/14 18:21:30 [] xfs_mkdir+0x203/0x4b0
2010/08/14 18:21:30 [] xfs_dir_ialloc+0x6d/0x270
2010/08/14 18:21:30 [] xfs_trans_mod_dquot+0x1e/0x180
2010/08/14 18:21:30 [] xfs_ialloc+0x4c/0x560
2010/08/14 18:21:30 [] __do_softirq+0x78/0xf0


any suggestions?

best regards.