How often do those messages occur (once a second, once a minute, once an hour, etc.)?
Are you experiencing any problems with your wireless, or are you just concerned about those entries in the log file out of curiosity?
Log files contain a bunch of stuff, and seeing something akin to "Error: no something-something found, killing process" or "Warning: Assertion failed on port 123456, falling back to stone-age mode" don't necessarily mean that anything is wrong with your computer; in fact, those messages may be perfectly normal. Errors may not indicate anything wrong -- in fact, errors are encountered many times per second even when you're working on a perfectly-fine computer... it's just
how those errors are handled by the processes that determine if anything's wrong.
For example, concerning AirDrop (which is Apple's drag-and-drop wireless sharing feature), your computer may find another computer on the network that doesn't support AirDrop. Your log file may contain entries such as:
Code:
12:34:56: Found: BSD member computer ID 12:34:56:78:90
12:34:56: WARNING: No promiscuous mode on wireless dev wan0 supported
12:34:57: ERROR: Cannot initiate AirDrop connection to 12:34:56:78:90: unsupported mode
12:34:58: FAILED ASSERTION on interface wan0 to 12:34:56:78:90... DYING
Despite the "WARNING" and "ERROR" and "FAILED" words in the log, the process is acting EXACTLY as it should be, and there really aren't any errors happening at all. It is simply a computer trying to make a connection to another computer, failing to do so (rightly), and
erroring out gracefully. That's normal operation for a computer: try something, if it fails (for perfectly normal reasons), error
gracefully.
In the case of AirDrop, a computer won't know if another computer supports it
without trying to connect to it first. If the computer doesn't support it, that means that an
error has occurred, but not an error in the sense of improper operation -- an error in the sense of "I tried, but failed to do this, so it doesn't support AirDrop, so let's just go about our business anyway."
So, are you seeing your logs FLOODED with those messages (which may indicate a potential situation), or are they sporadic, which would mean they're just fine and otherwise benign and an indication of proper operation?