Здравствуйте.
Система Debian 3.1 Sarge samba 3.0.24

создал динамические шары net usershare add .....права на папку с usershares назначил chmod 1770 ./usershares chown root:nogroup  (root:root также работает)

Не работает - шары появляются, пользователи в них заходят согласно acl, выставленным на шару, но бывает, при переходе в другую папку клиентом winXP все отавливается секунд на 10  и более при этом в логе (syslog = 10) появляются следующие записи

[2007/04/23 19:58:48, 1] smbd/service.c:close_cnum(1150)
  griff (192.168.5.209) closed connection to service _студенту
[2007/04/23 19:59:26, 1] smbd/service.c:make_connection_snum(950)
  griff (192.168.5.209) connect to service _студенту initially as user nobody (uid=65534, gid=65534) (pid 9714)
[2007/04/23 19:59:26, 0] param/loadparm.c:process_usershare_file(4497)
  process_usershare_file: stat of /home/users/_студенту failed. Permission denied
[2007/04/23 19:59:26, 0] param/loadparm.c:process_usershare_file(4497)
  process_usershare_file: stat of /home/users/_студенту failed. Permission denied
[2007/04/23 19:59:28, 0] lib/substitute.c:alloc_sub_basic(460)
  alloc_sub_basic: NULL source string!  This should not happen
[2007/04/23 19:59:28, 0] lib/substitute.c:alloc_sub_basic(460)
  alloc_sub_basic: NULL source string!  This should not happen
[2007/04/23 19:59:28, 0] lib/substitute.c:alloc_sub_basic(460)
  alloc_sub_basic: NULL source string!  This should not happen
[2007/04/23 19:59:28, 0] lib/fault.c:fault_report(41)
  ===============================================================
[2007/04/23 19:59:28, 0] lib/fault.c:fault_report(42)
  INTERNAL ERROR: Signal 11 in pid 9714 (3.0.24)
  Please read the Trouble-Shooting section of the Samba3-HOWTO
[2007/04/23 19:59:28, 0] lib/fault.c:fault_report(44)

  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
[2007/04/23 19:59:28, 0] lib/fault.c:fault_report(45)
  ===============================================================
[2007/04/23 19:59:28, 0] lib/util.c:smb_panic(1599)
  PANIC (pid 9714): internal error
[2007/04/23 19:59:28, 0] lib/util.c:log_stack_trace(1706)
  BACKTRACE: 14 stack frames:
   #0 /usr/sbin/smbd(log_stack_trace+0x23) [0x822d753]
   #1 /usr/sbin/smbd(smb_panic+0x48) [0x822d5d8]
   #2 /usr/sbin/smbd [0x821b26c]
   #3 [0xffffe420]
   #4 /usr/sbin/smbd [0x80c7cdb]
   #5 /usr/sbin/smbd(handle_trans2+0x197) [0x80cf5f7]
   #6 /usr/sbin/smbd(reply_trans2+0x402) [0x80cfd22]
   #7 /usr/sbin/smbd [0x80e9e9f]
   #8 /usr/sbin/smbd [0x80ea0c4]
   #9 /usr/sbin/smbd [0x80ea2e2]
   #10 /usr/sbin/smbd(smbd_process+0x155) [0x80eb1c5]
   #11 /usr/sbin/smbd(main+0x92e) [0x82c305e]
   #12 /lib/tls/libc.so.6(__libc_start_main+0xf4) [0x4019c974]
   #13 /usr/sbin/smbd [0x8082ec1]
[2007/04/23 19:59:28, 0] lib/util.c:smb_panic(1607)
  smb_panic(): calling panic action [/usr/share/samba/panic-action 9714]
[2007/04/23 19:59:38, 0] lib/util.c:smb_panic(1615)
  smb_panic(): action returned status 0
[2007/04/23 19:59:38, 0] lib/fault.c:dump_core(168)
  unable to change to /var/log/samba/cores/smbdrefusing to dump core
[2007/04/23 19:59:48, 1] smbd/service.c:make_connection_snum(950)
  griff (192.168.5.209) connect to service _студенту initially as user nobody (uid=65534, gid=65534) (pid 9763)
[2007/04/23 19:59:48, 0] param/loadparm.c:process_usershare_file(4497)
  process_usershare_file: stat of /home/users/_студенту failed. Permission denied

папка _студенту - шара создана динамически

мой smb.conf

[global]

   browse list = yes
   wide links = yes
   read raw = no
   usershare path = /home/users
   usershare max shares = 100
   usershare allow guests = no
   usershare owner only = yes
   security = user
   encrypt passwords = yes
   smb passwd file = /etc/samba/smbpasswd
   unix password sync = yes
   passwd program = /usr/bin/passwd %u
   passwd chat = *New*password* %n\n *Please*retype*new*password* %n\n *password*successfully*updated*
   workgroup = WORK
   server string = %h server (Samba %v)
   wins support = yes
   dns proxy = no
   log file = /var/log/samba/log.%m
   full_audit:success = read
   max log size = 1000
   syslog = 10
   panic action = /usr/share/samba/panic-action %d
   security = user
   null passwords = yes
   map to guest = bad user
   guest ok = yes
   guest account = nobody
   encrypt passwords = true
   passdb backend = tdbsam
   invalid users = root
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n .
   dos charset = cp1251
   unix charset = koi8-r
   socket options = IPTOS_LOWDELAY TCP_NODELAY
   local master = Yes
   preferred master = Yes
   os level = 255

#======================= Share Definitions =======================

[rwshare]
   path = /home/samba/rwshare
   browseable = yes
   guest ok = yes
   writable = yes

[smb]
   path = /home/samba
   browseable = no
   guest ok = no
   read only = yes
   write list = fadmin

Два вопроса которые не могу выяснить:
1. В логе: process_usershare_file: stat of /home/users/_студенту failed. Permission denied почему denied?

2. как сделать чтобы не тормозило

Искал везде уже добрался до списков рассылки, там тоже ни нашел, ткните носом пожалуйста.