Re: Warning when terminating wpa_supplicant (wext driver)

Johannes Berg
2009-05-07T14:19:42Z

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On Thu, 2009-05-07 at 06:53 -0700, Marcel Holtmann wrote:

> > Copying Wey-Yi, but I think she's aware of this? It's definitely a
> > driver issue. I _suspect_, but am not sure, that the driver kills the
> > aggregation session when we disassoc or something and we only tell it
> > about the STA removal after that, when it already killed the STA. Thus
> > it would be a consequence of iwlwifi not implementing a proper
> > sta_notify() callback.
>
> I don't see it with nl80211 driver, but that might be pure luck.

Hmm, ok, that points to something else maybe... Now I wish I had my
ftrace-mac80211 patch ready. Well, the patch is almost ready but we
can't use ftrace in modules yet...

Maybe there's some timing issue. I still think it's iwlwifi getting
confused about what mac80211 is telling it as described, but it seems
it's a little more subtle than what I said.

johannes

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