[Samba] Streaming large videos causes server's networking to crash

[Paul Accisano]

Greetings all; I really hope someone can help me.  I recently upgraded
to the most recent version (from a year-old version) of Samba, on a
server now running on Ubuntu Server Jaunty Jackalope x64.  After
upgrading, whenever I play large media files on my Vista machine
streamed from the Samba server, the networking functionality on the
server drops out.  Sometimes it happens after playing a video for 2
minutes, sometimes it takes 2 hours.  After it drops out, running
/etc/init.d/networking restart on the local terminal restores networking
functionality.  Rebooting also has this effect.  This never happened
before I upgraded, so I doubt it's a hardware problem.  I see the
following in the log for the computer the video was being viewed on:

[2009/07/29 01:13:21,  0] lib/util_sock.c:write_data(1136)
[2009/07/29 01:13:21,  0] lib/util_sock.c:get_peer_addr_internal(1676)
  getpeername failed. Error was Transport endpoint is not connected
  write_data: write failure in writing to client 0.0.0.0. Error
Connection reset by peer
[2009/07/29 01:13:21,  0] smbd/process.c:srv_send_smb(74)
  Error writing 4159 bytes to client. -1. (Transport endpoint is not
connected)
[2009/07/29 01:13:21,  1] smbd/service.c:close_cnum(1323)
  murahime (::ffff:192.168.1.100) closed connection to service Paul's Folder

and the following in log.nmbd:

[2009/07/29 01:13:23,  0]
nmbd/nmbd_become_lmb.c:become_local_master_stage2(395)
  *****

  Samba name server DITE is now a local master browser for workgroup
WORKGROUP on subnet 192.168.1.200

  *****

Any ideas?

--Paul Accisano