Date: Sun, 22 Nov 2015 12:54:47 -0700 From: Sergey Manucharian <sm@ara-ler.com> To: freebsd-current <freebsd-current@freebsd.org> Cc: Adrian Chadd <adrian.chadd@gmail.com>, Florian Limberger <flo@snakeoilproductions.net> Subject: Re: Panic while waiting on wlan0 Message-ID: <20151122195446.GA16398@dendrobates.araler.com> In-Reply-To: <CAJ-Vmo=SrRH89%2Bej-c5DSm9SwUt1SM3_w4JpPSPMteQPPmWBrQ@mail.gmail.com> References: <564AF74A.2090700@snakeoilproductions.net> <CAJ-VmonB1S-Ckx2UtcupURNa1KfCrCXcLqAMnmLZAZMbcqMaiA@mail.gmail.com> <5651B5B6.1010701@snakeoilproductions.net> <CAJ-Vmo=SrRH89%2Bej-c5DSm9SwUt1SM3_w4JpPSPMteQPPmWBrQ@mail.gmail.com>
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> On 22 November 2015 at 04:31, Florian Limberger > <flo@snakeoilproductions.net> wrote: > > On 17.11.15 17:42, Adrian Chadd wrote: > >> > >> try updating to head as of today. Some callout issues were fixed. > > > > The crashes are fixed alright, thank you. I still have a rather difficult > > to reproduce issue, where the wpa_supplicant hangs in SCANNING state > > indefinitely, even if the Notebook is very near to the AP. I’ve had this > > issue occasionally before, but since the crashes started it has become more > > frequent. Is there anything I can do to debug the behaviour? Until now I > > have only observed it in wpa_supplicant and have no idea how I might > > proceed. > > > Excerpts from Adrian Chadd's message from Sun 22-Nov-15 08:52: > > Do this: > > * compile in IEEE80211_DEBUG; > * do "wlandebug +scan" > > That way we can see if net80211 is refusing to continue scanning. I have a similar well-reproducable crash on my ThinkPad with "iwn" driver and "iwn6000fw" when I try to restart wlan: # service netif restart Otherwise it works fine, no problem at all. Sergey
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