From owner-freebsd-bugs@freebsd.org Thu Jan 28 13:54:29 2016 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A097BA6F7CD for ; Thu, 28 Jan 2016 13:54:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 76D141F95 for ; Thu, 28 Jan 2016 13:54:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u0SDsSR3079108 for ; Thu, 28 Jan 2016 13:54:29 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 206711] Export linux_ioctl_{,un}register_handler from linux64 for x11/nvidia-driver Date: Thu, 28 Jan 2016 13:54:28 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jbeich@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cc attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Jan 2016 13:54:29 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206711 Bug ID: 206711 Summary: Export linux_ioctl_{,un}register_handler from linux64 for x11/nvidia-driver Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: jbeich@FreeBSD.org CC: Ultima1252@gmail.com, danfe@FreeBSD.org, dchagin@FreeBSD.org, ohartman@zedat.fu-berlin.de Created attachment 166235 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D166235&action= =3Dedit [workaround] nvidia linux_ioctl global handler (for both linux and linux64) (In reply to ohartman from bug 201340 comment #17) > on CURRENT amd64 I would at least expect linux64.ko nvidia-driver requires kernel to provide linux_ioctl_{,un}register_handler = to allow linux userland access /dev/nvidia*. According to /sys/modules/linux/Makefile the symbol is only exported for 32bit version. Obviously, linux64 needs to export 64bit symbol. And its not possible to ex= port by building into kernel: option COMPAT_LINUX doesn't exist on amd64. How to make 64bit OpenGL apps work with nvidia & linuxulator: 1. Switch to 64bit linux_base or populate manually (I've used CentOS 7) 2. Apply *attached* patch and rebuild kernel or just linux* modules 3. Disable linux_ioctl handler in nvidia-driver (i.e. rebuild with LINUX=3D= off) 4. Install 64bit linux driver under /compat/linux 5. Remove sbin/nvidia-modprobe binary to enable userland fallback (as used = by FreeBSD driver) CUDA 64bit may still not work e.g., $ export PATH=3D/compat/linux/bin:/usr/local/cuda/bin:$PATH $ nvcc -o foo -m32 -lcuda a.c $ nvcc -o bar -lcuda a.c $ ./foo $ ./bar cuInit failed: 999 $ cat a.c #include #include int main() { CUresult r =3D cuInit(0); if (r !=3D CUDA_SUCCESS) { printf("cuInit failed: %d\n", r); return 1; } return 0; } --=20 You are receiving this mail because: You are the assignee for the bug.=