From owner-freebsd-current@FreeBSD.ORG Wed Nov 9 22:43:46 2011 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 777E3106566C; Wed, 9 Nov 2011 22:43:46 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-vx0-f182.google.com (mail-vx0-f182.google.com [209.85.220.182]) by mx1.freebsd.org (Postfix) with ESMTP id 1FFA78FC08; Wed, 9 Nov 2011 22:43:45 +0000 (UTC) Received: by vcbfo14 with SMTP id fo14so2714409vcb.13 for ; Wed, 09 Nov 2011 14:43:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type; bh=vuUgL+2HLkI1f96BY6C6nh+2+IBqK4rYwjRNSqFchVw=; b=if8mRbtigNoytvvb2lZA+hyHpzmcCbsxfmVVRQHFVyVZ3LbxG6Xq5rVIkflrAdQJaw 27AcJU0jaMc9rTLCJ0X9G6rf3zBomBmjwnVTGoT+aCDVNmB3wOh+myLdgLdhQfYOsSDC MAhvGPshmBOFh+uD7GFIifz+hvn6y/Y2rEFy4= MIME-Version: 1.0 Received: by 10.52.24.210 with SMTP id w18mr8144463vdf.21.1320878625315; Wed, 09 Nov 2011 14:43:45 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.52.29.198 with HTTP; Wed, 9 Nov 2011 14:43:45 -0800 (PST) Date: Wed, 9 Nov 2011 14:43:45 -0800 X-Google-Sender-Auth: pmHZLs57_glCxMzMfUx1VOZ-ND0 Message-ID: From: Adrian Chadd To: freebsd-wireless@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-current@freebsd.org Subject: please test - AR5416/AR9220 PCI on SMP fix X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Nov 2011 22:43:46 -0000 Hi, I've included a fix into our ath/hal driver which enforces serialised register access on AR5416 and later PCI NICs when running on an SMP system. This is needed to fix a system hang issue that occurs with multiple CPUs doing register IO to/from these devices. I don't have any further information then that. Please update to -head and give things a try. If it still hangs when you bring the interface up, please email me a boot dmesg so I can ensure that it's enabled. You can also enable it manually before you create the interface - sysctl dev.ath.X.hal.serialise_reg_war=1 . Thanks, Adrian