[Bug 99278] kwin corruption when desktop effects enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99278

            Bug ID: 99278
           Summary: kwin corruption when desktop effects enabled
           Product: Mesa
           Version: 13.0
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: vedran at miletic.net
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 128760
  --> https://bugs.freedesktop.org/attachment.cgi?id=128760&action=edit
Photo

Using Fedora 25 with Mesa 13 and LLVM 3.8 on:

04:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Venus
XTX [Radeon HD 8890M / R9 M275X/M375X] [1002:6820] (rev 81)

identified as "AMD CAPE VERDE" by Mesa. Photo is attached. This is a dual GPU
laptop (Lenovo Z51-70), main GPU being

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)

While corruption happens, dmesg | grep radeon does not show anything
suspicious, just:

[21253.931482] radeon 0000:04:00.0: WB enabled
[21253.931484] radeon 0000:04:00.0: fence driver on ring 0 use gpu addr
0x0000000100000c00 and cpu addr 0xffff99e2d0bb1c00
[21253.931485] radeon 0000:04:00.0: fence driver on ring 1 use gpu addr
0x0000000100000c04 and cpu addr 0xffff99e2d0bb1c04
[21253.931486] radeon 0000:04:00.0: fence driver on ring 2 use gpu addr
0x0000000100000c08 and cpu addr 0xffff99e2d0bb1c08
[21253.931486] radeon 0000:04:00.0: fence driver on ring 3 use gpu addr
0x0000000100000c0c and cpu addr 0xffff99e2d0bb1c0c
[21253.931487] radeon 0000:04:00.0: fence driver on ring 4 use gpu addr
0x0000000100000c10 and cpu addr 0xffff99e2d0bb1c10
[21253.932296] radeon 0000:04:00.0: fence driver on ring 5 use gpu addr
0x0000000000075a18 and cpu addr 0xffffbefe01235a18
[21253.952686] radeon 0000:04:00.0: fence driver on ring 6 use gpu addr
0x0000000100000c18 and cpu addr 0xffff99e2d0bb1c18
[21253.952687] radeon 0000:04:00.0: fence driver on ring 7 use gpu addr
0x0000000100000c1c and cpu addr 0xffff99e2d0bb1c1c

Should I test LLVM 3.9/4.0-git? Any other info that could be useful?

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