I was reading a locally stored group, on my own INN server, when the
following error appeared. The symptom was that changing articles did not
update the body text:

Sun, 13 Apr 2003 14:38:17 - Unable to set group "uk.radio.amateur": Error
reading from socket.
Sun, 13 Apr 2003 14:38:17 - GLib - giounix.c:395:g_io_unix_get_flags()Error
while getting flags for FD: Bad file descriptor (9)
Sun, 13 Apr 2003 14:38:17 - GLib - Invalid file descriptor.
Sun, 13 Apr 2003 14:38:17 - GLib - Invalid file descriptor.
Sun, 13 Apr 2003 14:38:17 - GLib - Error flushing string: Bad file descriptor
Sun, 13 Apr 2003 14:38:17 - News server connection count: 3

Seen this quite a few times, first time I managed to isolate the error and
bugzilla it though.