[ltp] Interference of wlan usage and hdaps?

[Henrique de Moraes Holschuh]

On Tue, 22 Sep 2009, Elias Oltmanns wrote:
> The rather annoying result of it all is that hdapsd frequently parks the
> disk heads, sometimes preventing all I/O for tens of seconds without
> interruption. Clearly, this strange behaviour only occurs once I have
> connected to my wlan and goes on persistently afterwards, irrespective
> of the current state of the wlan interface.

Is it a function of the interrupt handling of the kernel driver (i.e. normal
behaviour is restored if you rmmod the kernel driver for the wlan card), or
of the hardware itself?

> actual culprit and to point the finger. Unfortunately, the problem
> turned out to be inherently linked with the design of the atheros driver
> (or parts of it) and nontrivial to solve. Now, I'm lead to believe that

Can you give me any hints about what the problem was with the Atheros card?

> Apparently, this issue has not come up so far, which rather surprises
> me. Perhaps there aren't that many hdaps users after all, or they aren't
> heavy wlan usres. But then, it is perfectly possible that I have missed
> something as I'm following developments and discussions rather
> sluggishly these days due to time constraints.

Well, I have never seen anything like it in my T43 with an IPW2950 wlan
card.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh