Date: Thu, 28 Jan 2016 13:54:28 +0000 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 Message-ID: <bug-206711-8@https.bugs.freebsd.org/bugzilla/>
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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 <cuda.h> #include <stdio.h> 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.=
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