I was attempting to make /var/lib/nfs a symlink on my 2.6.15/Lustre-1.5.95 setup to a Lustre filesystem, so that I can share it amongst a group of LVS NFS servers. I can make all the files and directories inside /var/lib/nfs to be symlinks, but if the whole directory is a symlink, then nfsd hangs on startup, and I get Lustre errors in dmesg such as the following: [4348843.896000] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory [4348843.896000] LustreError: 2313:0:(ldlm_lock.c:81:ldlm_it2str()) Unknown intent 0 [4348843.896000] LustreError: 2313:0:(linux-debug.c:130:lbug_with_loc()) LBUG [4348843.897000] Lustre: 2313:0:(linux-debug.c:155:libcfs_debug_dumpstack()) showing stack for process 2313 [4348843.897000] rpc.nfsd R running 0 2313 2291 (NOTLB) [4348843.897000] dfd8d5c0 c0198cf6 eca79004 bfdc8fd8 00000002 0000000b dfd8d5c0 bfdc8fd8 [4348843.897000] f90158f7 dfd8d5c0 eca79004 00000002 00000002 dfd8d5c0 c01718f3 dfd8d5c0 [4348843.897000] bfdc8fd8 00000002 ecb0bfa4 dfd8d5c0 fffffff7 bfdc8fdb ecb0a000 c0171a81 [4348843.897000] Call Trace: [4348843.897000] [<c0198cf6>] simple_transaction_get+0x96/0xb0 [4348843.897000] [<f90158f7>] nfsctl_transaction_write+0x77/0xb0 [nfsd] [4348843.897000] [<c01718f3>] vfs_write+0xf3/0x1b0 [4348843.897000] [<c0171a81>] sys_write+0x51/0x80 [4348843.897000] [<c010329f>] sysenter_past_esp+0x54/0x75 [4348843.897000] LustreError: dumping log to /tmp/lustre-log.1161702798.2313 [4348844.303000] Lustre: 2313:0:(linux-debug.c:96:libcfs_run_upcall()) Invoked LNET upcall /usr/lib/lustre/lnet_upcall LBUG,/root/lustre-1.5.95/lustre/mdc/mdc_locks.c,it_to_lock_mode,70 In this particular case, the Lustre client seems to have survived; it just left rpc.nfsd in a ''D'' state. The call trace varies considerably, and previous attempts did seem to hang the Lustre client for that filesystem at least partially. nfsd always hangs on startup in this case, however. Any ideas? I should be able to get around it without difficulty, but it is odd... Thanks, Brent Nelson Director of Computing Dept. of Physics University of Florida