Date: Tue, 3 Apr 2012 15:28:37 +0200 From: Bernhard Schmidt <bschmidt@freebsd.org> To: Mitsuru IWASAKI <iwasaki@jp.freebsd.org> Cc: freebsd-wireless@freebsd.org Subject: Re: [patch] iwi(4) watchdog broken Message-ID: <CAAgh0_bEYt9sHdfW5b6au7PK6uipkNCdzMOJSh7_SV_9qVjC0A@mail.gmail.com> In-Reply-To: <20120403.221245.92588443.iwasaki@jp.FreeBSD.org> References: <CAAgh0_ZuJ_dG-r7QnLRJ-NX8Ejmt1DpBehgYOMv-pt_tT4K0Yg@mail.gmail.com> <20120403.211212.59463568.iwasaki@jp.FreeBSD.org> <CAAgh0_YC1F11r%2B-VmMS3rjdMa6OOW7UzEXjo=UyNac=WEnMr9w@mail.gmail.com> <20120403.221245.92588443.iwasaki@jp.FreeBSD.org>
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On Tue, Apr 3, 2012 at 15:12, Mitsuru IWASAKI <iwasaki@jp.freebsd.org> wrot=
e:
> Hi,
>
>> > Yap, ifconfig wlan0 scan on RELENG_8 always reproduce 'firmware stuck
>> > in state 4, resetting'.
>>
>> Ah, yeah, ok, the scan issue again, that is probably the reason why
>> background scan support is disabled..
>
> Yes it seems to be. =A0On the other hand, the `device timeout' was
> produced when a microwave oven is operating, but it occurs rarely
> and difficult to debug. =A0I could see `device timeout' on only RELENG_8.=
..
>
>
>> > I wonder if only RELENG_8 has this problem because HEAD and RELENG_9
>> > seems to be OK...
>>
>> wpa_supplicant involved? I mean, that is the only thing I can
>
> Yes, I'm using wpa_supplicant.
>
>> currently think of, wpa_supplicant versions differ between head and 8
>> afaik. The callgraph is also different between with and without
>> supplicant. Can we rule the supplicant out somehow?
>>
>> I mean this condition in ieee80211_start_locked()
>> =A0 =A0 =A0 =A0 if ((parent->if_drv_flags & IFF_DRV_RUNNING) &&
>> =A0 =A0 =A0 =A0 =A0 =A0 vap->iv_roaming !=3D IEEE80211_ROAMING_MANUAL) {
>
> Hmm, I can't get this. wpa_supplicant on HEAD and RELENG_9 also set
> roaming mode MANUAL, isn't it?
Sure, just wanted to emphasize that it's up to wpa_supplicant to do
the UP/DOWN. And afaik between head and 8 the driver_freebsd.c file is
different.
--=20
Bernhard
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