From owner-freebsd-wireless@FreeBSD.ORG Thu Aug 21 18:59:40 2014 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id A18A353E for ; Thu, 21 Aug 2014 18:59:40 +0000 (UTC) Received: from mail-qa0-x234.google.com (mail-qa0-x234.google.com [IPv6:2607:f8b0:400d:c00::234]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 63C2339E5 for ; Thu, 21 Aug 2014 18:59:40 +0000 (UTC) Received: by mail-qa0-f52.google.com with SMTP id j15so8574892qaq.39 for ; Thu, 21 Aug 2014 11:59:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=Fq48ssWwKagWfDeKtFzGUegkti+aRS2+wbpEJfBSQCU=; b=tYP4ZLUK/gbILCYkXyKSDbAbUwwK/Rw7cz/Nu6zxjoJ5eM7cKsXyJEAdQ5H1XF1H6n /Lei2NtZ3Qb6kTkvltqa2POAFpmiUB+UOxyYpqMnj58uVtrQWt5k9haNeXA+k5pQcUbV GReKmgW91u2HBytYnHSCXqNkt2fdi8JuxFMEVUtyHoN9jbd1GSbCcpbUUoSDsrR6tAkb MAbKn3ptBkKsxuoWq1hw7xJHOzi1MoGrwwRbYSlg3rqkWBhq6jddElbnrNkvH82Urfvc UvRL04+NZzYrCUzoCST2RgqLk2noSfNiISGoniUKt7ULs0KoYvRA9KjD0iqxhpru55ae sJJw== MIME-Version: 1.0 X-Received: by 10.140.46.55 with SMTP id j52mr683360qga.27.1408647578780; Thu, 21 Aug 2014 11:59:38 -0700 (PDT) Received: by 10.140.18.137 with HTTP; Thu, 21 Aug 2014 11:59:38 -0700 (PDT) Date: Thu, 21 Aug 2014 13:59:38 -0500 Message-ID: Subject: Is there anyone who can look at, and possibly fix this? From: Chuck Burns To: freebsd-wireless@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Aug 2014 18:59:40 -0000 There was a bug filed about 7 months ago, with iwi crashing under heavy usage. I am also hitting this bug under 10-stable. Things that trigger the bug are heavy two-way usage, such as bittorrent/aria2c and X11-forwarding over my LAN. bug#185478 The original reporter had this bug under 10.0-RELEASE, and I was under 10-stable. Took several reboots (and quite a bit of $HOME corruption as well) to track down a semi-reliable way to reproduce the bug. It does not always trigger a kernel panic, but iwi will always die with "iwi0: Firmware Error" and usually, attempting to restart netif will cause the panic. Even restarting netif will not bring the system back. I've got a urtw0 usb dongle that I can sometimes get to work after the iwi0 goes belly up, but not always.... (and for the record, I had tons of trouble with urtw0 back in 9-current, and it was -never- made stable for me...) With that said, however, iwi0 seems to be perfectly stable under OpenBSD and various Linux distros, which makes me wonder if A) do we need a different firmware version? or B) is there a problem with our implementation of the driver? I'm happy to provide as much more information as I can (I'm currently not running FreeBSD on this machine, but that is easily, and quickly remedied if anyone wants to attempt a fix with me) Thanks, Chuck Burns