From owner-freebsd-hackers@FreeBSD.ORG Wed Dec 15 13:00:30 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 45234106566B for ; Wed, 15 Dec 2010 13:00:30 +0000 (UTC) (envelope-from drbaud@yahoo.com) Received: from web120712.mail.ne1.yahoo.com (web120712.mail.ne1.yahoo.com [98.138.82.219]) by mx1.freebsd.org (Postfix) with SMTP id CF20D8FC18 for ; Wed, 15 Dec 2010 13:00:29 +0000 (UTC) Received: (qmail 84030 invoked by uid 60001); 15 Dec 2010 12:33:48 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1292416428; bh=fjTYVH8XZSswoXRiSt0rEo56fk+RRMIekR0BzWdnK9Q=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=LbZc2XmMFOVs+bxs2UGTmgztMtCVI3Pq8vz5GSdO6vbhwjdY+xnBgp0oh9qknQx3RxlmfytvbAsUloCciWEI6A9Rd7Fm5t9fdoxk8SBX7VNZXETwdYO1KPz4lPTe4w+ixMXrcxuYIS3yht/Ew4CCAVqrrUTWSVieOr4APhzwyhE= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=UI3Ay4VlKU6wSLzzbmK4NBougw0mMtbdqLkF260PJnpp2sxVPGJqPTajFNAP2+wrUyFBkvuGyYJiy7QOcFDqeNkcZbxfBTzVroax2AxgAmSzUQmZiCVku4WzMwpVXA/vBJ0oTFqQ4VGA0/lLz14R3lG4JONEB0oK3X+vkHPLyZo=; Message-ID: <66322.83509.qm@web120712.mail.ne1.yahoo.com> X-YMail-OSG: c57IfE4VM1lh2gEocVibESHY5tResKYYUBRp6kTOBZ6g0I6 QF0b3EZ5UWzDhju10e2E9vUhUaxwg3RbanB7kGL4udn58vc_kjHS6pBXiw4T wyPn7qfh8dL50nmIazEepKY_I1tDVxhkjfkgvizbZqzgGgOMO1ZLGNHp0kBb mFt6YlaMRSyGnHFnL3PINYYuv70mpyKDt4NXS0RUFZJM.vcWv7nvGOUo16AV GZoTCo_kbw_KWkCe4iMYq1.kr0TW41vFjZfPffuyi Received: from [64.238.244.146] by web120712.mail.ne1.yahoo.com via HTTP; Wed, 15 Dec 2010 04:33:48 PST X-Mailer: YahooMailRC/553 YahooMailWebService/0.8.107.285259 Date: Wed, 15 Dec 2010 04:33:48 -0800 (PST) From: "Dr. Baud" To: freebsd-hackers@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailman-Approved-At: Wed, 15 Dec 2010 16:13:02 +0000 Subject: Driver memory allocation X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Dec 2010 13:00:30 -0000 Is there a cap on the amount of memory a driver (via bus_dmamem_alloc) can allocate, other than the obvious physical memory limit minus the memory already allocated? Dr.