On our server, the command df -h showed the nfs mounts, but the command ls showed 0 files in one nfs mount. other nfs-mounts from the dss works fine.

This error messages are in the critical_errors.log

2007/11/16 20:23:47|<c02b6ba3> xfs_trans_cancel+0x103/0x140 <c02bf280> xfs_create+0x3c0/0x790
2007/11/16 20:23:47|<c02bf280> xfs_create+0x3c0/0x790 <c02cc40e> xfs_vn_mknod+0x38e/0x490
2007/11/16 20:23:47|<c0212160> nfsd_acceptable+0xb0/0x100 <c020f316> find_exported_dentry+0x96/0x530
2007/11/16 20:23:47|<c01387f0> autoremove_wake_function+0x0/0x60 <c0284be8> xfs_dir2_lookup+0x148/0x170
2007/11/16 20:23:47|<c04af23a> inet_sendmsg+0x4a/0x60 <c0460065> sock_sendmsg+0x115/0x120
2007/11/16 20:23:47|<c04600b6> kernel_sendmsg+0x46/0x60 <c011c0cd> activate_task+0x6d/0xb0
2007/11/16 20:23:47|<c017a0f4> permission+0xb4/0xf0 <c017c276> vfs_create+0xd6/0x1b0
2007/11/16 20:23:47|<c0215704> nfsd_create_v3+0x3e4/0x560 <c021c726> nfsd3_proc_create+0x116/0x170
2007/11/16 20:23:47|<c0210277> nfsd_dispatch+0xd7/0x200 <c04e7361> svc_process+0x4d1/0x6e0
2007/11/16 20:23:47|<c0210008> nfsd+0x1c8/0x360 <c020fe40> nfsd+0x0/0x360
2007/11/16 20:23:47|<c01011d5> kernel_thread_helper+0x5/0x10

We have rebooted the DSS and the problem was fixed.

What was the problem?

We can not reboot every time.