Update the bug list.

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 This is the gpsd to-do list.  If you're viewing it with Emacs, try
 doing Ctl-C Ctl-t and browsing through the outline headers.
 
+** Problems with the leap-second offset
+
+Remco, using a SiRF chip at level 231, is still seeing a 10-second
+offset in his reported GPS times.  Rob Janssen and I, with the same
+hardware, aren't seeing this.
+
+** Devicename pointer may get clobbered during very long runs
+
+Wallace E. Owen <owen@titan.com> and Rainer Scholz <ras@sigos.de>,
+who may or may not be different people :-), have reported that after
+gpsd has been running for a long time (5 hours in Rainer's original
+report) something clobbers the device name and zeros it out.  Rainer
+seems to have established that this is due to some change introduced
+between 2.21 and 2.22; I've sent him a diff which we're going to try
+to whittle down until we can figure out what.
+
+** No data from BU-303?
+
+Roeland Th. Jansen <roeland@linux-it.nl> was reporting no data from
+a BU-303.  I have a BU-303 and it's working fine.  I don't know if
+he has checked out SVN head recently.
+
+** Design problems with he NTP interface:
+
+There's a messy question about how NTP shared-memory segments should
+be associated with GPSes.  At the moment, the code allocates just
+one and all devices report through it.  It would be better for each
+device to have its own segment, so they look like separate time
+sources to NTP and it can apply its heuristics for weeding out
+the less consistent ones.  
+
+The trouble with this is that:
+
+1) The default build of NTP only supports 4 segments.  Thus, if we
+allocate them per GPS device, we're not unlikely to run out of them.
+
+2) We may actually want *two* segments per device, one for message time
+and one for PPS time.
+
+3) We can't grab new segments after privileges are dropped.
+
+I think we're going to be stuck with grabbing pointers to all four
+segments just in case gpsd wants them, and then having control-socket
+commands to bind NTP unit numbers to devices.
+
 ** Set FIFO threshold to 1 to reduce jitter in serial-message times
 
 This can matter if you're using gpsd as a time reference.