Some more stuff brought into the 2.8 branch

[Matthew Dillon]

    * sysctl net.wlan.force_swcrypto has been brought in.  Setting this
      to 1 causes software crypto to be used instead of the on-wifi-chip
      hardware crypto, working around problems in certain chipsets when
      used with certain combinations.  It must be set prior to running
      wpa_supplicant.

      In particular, some atheros chipsets operating in WPA2+WPS mode
      use the wrong encryption key for broadcast packets.  If your wireless
      authenticates fine but you can't seem to get an IP after that you can
      try using this setting.

    * 2.8 now recognizes HAMMER version 5 filesystems, for those people who
      are switching between 2.8 and the development tree.

      I also brought in HAMMER de-dup but please note that de-dup is
      considered highly experimental still and should not be used on
      production machines.

    * A possible bug fix to a rare 'panic: assertion: lf_global_counter>=0...'
      panic has been brought in.

    * The mbuf cluster size has been bumped from 2K to 4K as a temporary
      workaround to other wireless issues (wpi in this case).  This is not
      ideal and causes a bit of ram to be wasted but it's the best we could
      come up with for now.  And truth be told, mbuf/mbuf-cluster limits
      have fallen behind the times anyway relative to the amount of ram
      machines have these days.

    * Added sysctl kern.sysbeep_enable (defaults to 1).  For those people
      like me whos laptops would beep every time a terminal beep occured,
      it can get rather annoying in a conference or public place.  Setting
      this to 0 will disable the annoying beeps.

    * A few minor bug fixes have also been brought in.

    We are working on a 2.8.3 sub-release in a week or two to incorporate
    these and other bug fixes (including an annoying console deadlock which
    was fixed just after the release).  If you don't want to wait you
    can track the 2.8.x branch and build/update your kernel yourself.
    Generic instructions on building kernels can be found here:

    http://www.dragonflybsd.org/docs/newhandbook/ConfigureKernel/

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>