[Bug 98668] i965 renders garbled tiles on mesa-13.0.0 in firefox-49

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98668

            Bug ID: 98668
           Summary: i965 renders garbled tiles on mesa-13.0.0 in
                    firefox-49
           Product: Mesa
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: slyfox at inbox.ru
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Created attachment 127886
  --> https://bugs.freedesktop.org/attachment.cgi?id=127886&action=edit
a copy of garbled image

I've updated my system a few days ago and firefox started rendering
pictures incorrectly like that (didn't notice any other apps to corrupt state):
    http://code.haskell.org/~slyfox/2016-11-09-22-57-08.png

It's a
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)

(built into model name      : Intel(R) Core(TM) i7-2700K CPU @ 3.50GHz)

Xorg detects it as:

[   100.106] (II) intel(0): Using Kernel Mode Setting driver: i915, version
1.6.0 20160919
[   100.107] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics
3000

Linux kernel: vanilla 4.9.0-rc3
Xorg server: 1.18.4
libdrm: 2.4.71
x11 video: xf86-video-intel 2.99.917_p20161103

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