On 02/01/18 11:25, Jan Beich wrote:
Hans Petter Selasky <hsela...@freebsd.org> writes:

Author: hselasky
Date: Fri Jan 26 10:49:02 2018
New Revision: 328436
URL: https://svnweb.freebsd.org/changeset/base/328436

Log:
   Decouple Linux files from the belonging character device right after open
   in the LinuxKPI. This is done by calling finit() just before returning a 
magic
   value of ENXIO in the "linux_dev_fdopen" function.

This breaks DRI3 (uses DMABUF) on drm-next-kmod (Linux 4.9 atm) e.g.,

$ LIBGL_DRI3_ENABLE=1 LIBGL_DEBUG=verbose MESA_DEBUG=context glxgears
libGL: screen 0 does not appear to be DRI3 capable
libGL error: Connection closed during DRI3 initialization failure
XIO:  fatal IO error 35 (Resource temporarily unavailable) on X server ":0"
       after 22 requests (22 known processed) with 0 events remaining.


Hi,

I'll have a look. It might be an issue in libdrm, because it uses some out-of date methods to enumerate the device nodes, like the major and minor numbers.

Did you recompile drm-next-kmod after recompiling the LinuxKPI?

--HPS

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