"ressource temporarily unavailable" on 2.4 GHz, not on 5GHz

[Dennis Borgmann]

Hello wireless-list!
Hello hostapd-list!

I am using ath5k with hostapd-0.6.9 on a debian running kernel 2.6.34
and I am observing a "ressource temporarily unavailable" - error code 11
if I pump out multicast-packets quite fast. I wrote a small
test-program, that handles this test and as soon as I go down to a
8ms-pause or below in betweens the packets, the error is thrown quite
soon after starting the program. Funny thing is, that this error only
occurs in g-band (2.4 GHz), not in a-band (5GHz).

What could be the problem? Is this due to backoff-times in 2.4 GHz, that
don't occur on 5 GHz? Or could this be a bug?

Find attached my small piece of code to test and reproduce this effect.

Kind regards,
Dennis
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