[Pkg-opencl-devel] beignet crashing on i7-3770

[Rebecca N. Palmer]

That's a failing ioctl at 
http://sources.debian.net/src/libdrm/2.4.58-2/intel/intel_bufmgr_gem.c/#L3093
Possibilities:
-The Intel GPU is off (may be the default if a discrete GPU is present: 
/http://nouveau.freedesktop.org/wiki/Optimus/ )
-The kernel is too old (seems unlikely, it's failing on "what GPU is 
this?" not some advanced thing)
-bufmgr_gem->fd is uninitialized

Please post the output of

#outside the chroot
uname -a
sudo cat /sys/kernel/debug/vgaswitcheroo/switch

#inside the chroot
sudo apt-get install libdrm-intel1-dbg beignet-opencl-icd-dbg
gdb clinfo
#at gdb prompt
break intel_bufmgr_gem.c:3095
run
print bufmgr_gem->fd
print gp
print bufmgr_gem
bt full