User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101230 Lanikai/3.1.7
I assume that both of you use X and as a consequence don't see the
kernel panic output. Try to trigger the error with copying some files to
the disk from e.g. tty1. Then useful debug information should be visible
there.
