ath0 issue

[Lamont Granquist]

On Wed, 15 Nov 2006, Sam Leffler wrote:
> Snapshots are rarely useful; try running athstats 1 and correlate what
> you see with pauses.  Another possible reason for deferred operation is
> something else in the system blocking the taskq threads; that's a bit
> trickier to diagnose.

also, "athtest 1" isn't very helpful:

    input   output altrate   short    long xretry crcerr crypt  phyerr rssi rate
     7195     8266       0       0     502     53    281     0    5564   30  18M
       24       24       0       0       0      0      0     0       4   30   5M
        0        0       0       0       0      0      0     0       0   30   5M
        0        0       0       0       0      0      0     0       0   30   5M
        8       11       0       0       0      0      0     0       0   30  18M
        0        0       0       0       0      0      0     0       0   30  18M
        7       10       0       0       0      0      0     0       0   30  18M
        0        0       0       0       0      0      0     0       0   30  18M
        0        0       0       0       0      0      0     0       0   29  18M
        6        8       0       0       0      0      0     0       0   29  18M
        5        7       0       0       0      0      0     0       1   29  18M
        0        0       0       0       0      0      0     0       0   29  18M
        4        5       0       0       0      0      0     0       0   30  18M
        0        0       0       0       0      0      0     0       0   30  18M
        0        0       0       0       0      0      0     0       0   30  18M
        0        0       0       0       0      0      0     0       0   30  18M
       12       15       0       0       0      0      0     0       0   30  18M
        0        0       0       0       0      0      0     0       0   30  18M
        9       11       0       0       0      0      0     0       1   30  18M
        4        4       0       0       0      0      0     0       0   29  18M
        2        2       0       0       0      0      0     0       0   30  18M

the zeros in input and output correspond to drops and there's some phyerrs 
but nothing that seems to correlate...