The following reply was made to PR kern/30831; it has been noted by GNATS.

From: Patrick Welche <prlw1@newn.cam.ac.uk>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/30831
Date: Mon, 2 Apr 2007 16:08:26 +0100

 (gdb) frame 8
 #8  0xc0216ec2 in smbfs_sync (mp=0xc14ca000, waitfor=3, cred=0xcad40ee0, 
     l=0xcad4f7a0) at ../../../../fs/smbfs/smbfs_vfsops.c:460
 460                     if ((vp->v_type == VNON || (np->n_flag & NMODIFIED) == 0) &&
 (gdb) print *vp
 $1 = {v_uobj = {vmobjlock = {lock_data = 1 '\001', lock_pad = "\000\000", 
       lock_file = 0xc056aa8c "../../../../fs/smbfs/smbfs_vfsops.c", 
       unlock_file = 0xc0577f7c "../../../../miscfs/genfs/genfs_vnops.c", 
       lock_line = 457, unlock_line = 1081, list = {tqe_next = 0x0, 
         tqe_prev = 0xc05a29d0}, lock_holder = 0}, pgops = 0xc059e9ec, memq = {
       tqh_first = 0x0, tqh_last = 0xcf110988}, uo_npages = 0, uo_refs = 0}, 
   v_size = 0, v_flag = 256, v_numoutput = 0, v_writecount = 0, v_holdcnt = 0, 
   v_mount = 0xc14ca000, v_op = 0xc118a400, v_freelist = {
     tqe_next = 0xcd5a9ae4, tqe_prev = 0xdeadb}, v_mntvnodes = {
     tqe_next = 0xcc1e7108, tqe_prev = 0xcc01b34c}, v_cleanblkhd = {
     lh_first = 0x0}, v_dirtyblkhd = {lh_first = 0x0}, v_synclist_slot = 0, 
   v_synclist = {tqe_next = 0x0, tqe_prev = 0x0}, v_dnclist = {lh_first = 0x0}, 
   v_nclist = {lh_first = 0x0}, v_un = {vu_mountedhere = 0x0, vu_socket = 0x0, 
     vu_specinfo = 0x0, vu_fifoinfo = 0x0, vu_ractx = 0x0}, v_type = VDIR, 
   v_tag = VT_SMBFS, v_lock = {lk_interlock = {lock_data = 0 '\0', 
       lock_pad = "\000\000", 
       lock_file = 0xc0534a4f "../../../../kern/kern_lock.c", 
       unlock_file = 0xc0534a4f "../../../../kern/kern_lock.c", 
       lock_line = 626, unlock_line = 977, list = {tqe_next = 0x0, 
         tqe_prev = 0x0}, lock_holder = 4294967295}, lk_flags = 32768, 
     lk_sharecount = 0, lk_exclusivecount = 0, lk_recurselevel = 0, 
     lk_waitcount = 0, lk_wmesg = 0xc053825b "vnlock", lk_un = {lk_un_sleep = {
         lk_sleep_lockholder = -1, lk_sleep_locklwp = 0, lk_sleep_prio = 20, 
         lk_sleep_timo = 0, lk_newlock = 0x0}, lk_un_spin = {
         lk_spin_cpu = 4294967295, lk_spin_list = {tqe_next = 0x0, 
           tqe_prev = 0x14}}}, 
     lk_lock_file = 0xc0577f7c "../../../../miscfs/genfs/genfs_vnops.c", 
     lk_unlock_file = 0xc0577f7c "../../../../miscfs/genfs/genfs_vnops.c", 
     lk_lock_line = 298, lk_unlock_line = 314}, v_vnlock = 0xcf1109f0, 
   v_data = 0x0, v_klist = {slh_first = 0x0}}
 (gdb)