Date: Sun, 14 Dec 2014 11:26:54 -0800 From: Adrian Chadd <adrian@freebsd.org> To: Thomas Zander <riggs@freebsd.org> Cc: Danilo Egea Gondolfo <daniloegea@yahoo.com.br>, FreeBSD Stable Mailing List <freebsd-stable@freebsd.org> Subject: Re: ath(4) device timeout -> reboot necessary Message-ID: <CAJ-Vmom45tzxp%2Bq5pn8otuCcL%2BTnZWv5hGiy_1imM7pMU-CNzg@mail.gmail.com> In-Reply-To: <CAFU734y2_nZKr0VunKNfOTE8K6qUR_bgXTckoeaj4G-4u1_0tg@mail.gmail.com> References: <20141122171734.GA4600@marvin2011.fritz.box> <5470C695.3040204@yahoo.com.br> <CAJ-Vmo=wUr%2BCTJA7zkANR3LAaDSYOW3eBVNwFK8xt22UBGOCdw@mail.gmail.com> <CAFU734yUsBy8FXyS2C9%2BzUXQLHQhhgMFrzTuSC5=D36A-8EbTw@mail.gmail.com> <CAFU734y2_nZKr0VunKNfOTE8K6qUR_bgXTckoeaj4G-4u1_0tg@mail.gmail.com>
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Hi, Nope. In theory the full reset is doing just that.. a full chip cold stop and start. There's only a handful of state that needs a full reset line pulldown to achieve. So if that's fixing it then ok, maybe there's some issues i can patch aronud by doing a full chip reset. I wonder if there are also some bugs lurking in some of the calibration code that keeps state over time; or the ANI code that keeps state over time. -adrian On 14 December 2014 at 09:23, Thomas Zander <riggs@freebsd.org> wrote: > On 23 November 2014 at 13:23, Thomas Zander <riggs@freebsd.org> wrote: >> On 22 November 2014 at 19:11, Adrian Chadd <adrian@freebsd.org> wrote: >> >>> Try setting >>> sysctl dev.ath.0.hal.force_full_reset=1 >> >> Thanks Adrian. I put this into sysctl.conf and observe the effects >> over the next weeks. > > I made the following observations in the past two weeks regarding this sysctl: > - Reboots are not strictly necessary after an ath0 device timeout to > get wifi to reconnect, as you expected, > - If a device timeout has happend once, it is a virtual certainty to > get the next one within 2 hours. This continues until the next reboot. > So *something* might not get reset fully > > Any ideas? > > Best regards > Riggs
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