[Bug 120591] New: BUG() in dmesg after loading nouveau module

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=120591

            Bug ID: 120591
           Summary: BUG() in dmesg after loading nouveau module
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.7-rc3
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: demfloro at demfloro.ru
        Regression: No

Created attachment 220561
  --> https://bugzilla.kernel.org/attachment.cgi?id=220561&action=edit
dmesg

OS: Arch Linux
Video adapter: GeForce GTX 780 Ti
xf86-nouveau: 1.0.12

I blacklisted nouveau module for full OS initialisation before reproducing,
then issued:
# modprobe nouveau debug=trace

After that screen becomes black and in dmesg appears:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000210

Bug is not reproducible with 4.7-rc2 or earlier mainline.

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