Hi, Shortly after removing the wins.dat files as John T suggested, the nmb process died with the following backtrace. I restarted it, and all seems well. The Samba version is that from latest FC3 (samba-3.0.10-1.fc3). I can post config info if required: [2005/01/28 00:34:51, 0] nmbd/nmbd_become_dmb.c:become_domain_master_browser_bcast(295) become_domain_master_browser_bcast: querying subnet 192.168.0.7 for domain master browser on workgroup HOME [2005/01/28 00:34:55, 0] nmbd/nmbd_logonnames.c:become_logon_server_success(124) become_logon_server_success: Samba is now a logon server for workgroup HOME on subnet 192.168.0.7 [2005/01/28 00:34:59, 0] nmbd/nmbd_become_dmb.c:become_domain_master_stage2(113) ***** Samba server FILESTORE is now a domain master browser for workgroup HOME on subnet 192.168.0.7 ***** [2005/01/28 00:35:14, 0] nmbd/nmbd_become_lmb.c:become_local_master_stage2(396) ***** Samba name server FILESTORE is now a local master browser for workgroup HOME on subnet 192.168.0.7 ***** [2005/01/28 00:38:53, 0] lib/fault.c:fault_report(36) ==============================================================[2005/01/28 00:38:53, 0] lib/fault.c:fault_report(37) INTERNAL ERROR: Signal 11 in pid 16184 (3.0.10-1.fc3) Please read the appendix Bugs of the Samba HOWTO collection [2005/01/28 00:38:53, 0] lib/fault.c:fault_report(39) ==============================================================[2005/01/28 00:38:53, 0] lib/util.c:smb_panic2(1504) PANIC: internal error [2005/01/28 00:38:53, 0] lib/util.c:smb_panic2(1512) BACKTRACE: 8 stack frames: #0 nmbd(smb_panic2+0x8a) [0x6df1bd] #1 nmbd(smb_panic+0x19) [0x6df3e9] #2 nmbd [0x6ca929] #3 /lib/tls/libc.so.6 [0x153a48] #4 nmbd(refresh_my_names+0x45) [0x675421] #5 nmbd(main+0x4da) [0x66be97] #6 /lib/tls/libc.so.6(__libc_start_main+0xe3) [0x140e33] #7 nmbd [0x66a661]