6.1 panic after approx. 49 days uptime

[Mark Knight]

Just awoke to fine my home server (6.1-RELEASE) had panicked during its
daily update of /usr/ports with an uptime of 49 days.

Stack trace is here:

  <http://www.knigma.org.uk/scratch/crash_160706.txt>

Looks file system related to me.  Any advice appreciated.

Cheers,
-- 
Mark A. R. Knight                               finger: markk at knigma.org
Tel: +44 7880 556751                            http://www.knigma.org/