Date: Mon, 20 Feb 2012 21:45:53 -0500 From: Adam Twardowski <adam.twardowski@gmail.com> To: Bernhard Schmidt <bschmidt@freebsd.org> Cc: freebsd-net@freebsd.org, Adrian Chadd <adrian@freebsd.org> Subject: Re: [urtw] Random wireless crash / kernel panic Message-ID: <CAEvxfZc%2BF8K8u8eowBy9w7YffZDxRCz1QzM5bbBR2dCTdg-uSg@mail.gmail.com> In-Reply-To: <201202201832.11604.bschmidt@freebsd.org> References: <CAEvxfZdTxkN-BJnCa1kNYba0k1jA54aDinQ6d_jdYRUqhLATXQ@mail.gmail.com> <CAJ-Vmondt98a1gtmVL0kOrJYjTzq0psrEdN4bA=ZbPWHeMSv2g@mail.gmail.com> <CAEvxfZdAG8Tj%2BpUSKUKkpkAzmYohGQD6SZMiysqZpx1VT0Yn4Q@mail.gmail.com> <201202201832.11604.bschmidt@freebsd.org>
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On Mon, Feb 20, 2012 at 12:32 PM, Bernhard Schmidt <bschmidt@freebsd.org> wrote: > On Monday 20 February 2012 18:03:45 Adam Twardowski wrote: >> I do still have the kernel and the crash dump. I'll try that fix tonight >> to see how it goes. Unfortunately, the kernel doesn't usually crash, more >> likely the wifi stops working and I am forced to reboot the machine to get >> it working again. > > Building urtw(4) as module here helps a lot, kldunload/kldload is just so much faster than a reboot. :) > > I have a bunch of asorted fixes [1] for urtw(4) which needs some further testing, though I still wasn't able to fix the issue which made me look into this in the first place.. As a test case I force a disconnection from the AP side a few times, which will eventually result in a device timeout and the requirement to reload the module. I believe that one of those might actually address the panic you're seeing, though, it doesn't fix the device timeout. > > [1] http://techwires.net/~bschmidt/urtw/ > > -- > Bernhard Bernhard, I just applied your four patches and rebooted. I also went with a module like you suggested. We will see how it goes. I did not apply Adrians change above, not sure if it was necessary.
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