[Nouveau] [Bug 91231] New: [NV92] Psychonauts (native) segfaults on start when DRI3 enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91231

            Bug ID: 91231
           Summary: [NV92] Psychonauts (native) segfaults on start when
                    DRI3 enabled
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Keywords: bisected, regression
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: gyebro69 at gmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 116944
  --> https://bugs.freedesktop.org/attachment.cgi?id=116944&action=edit
trace generated by apitrace

The game runs natively on Linux. When Mesa was compiled with DRI3 support the
game segfaults when starting and I get this in the terminal:
Psychonauts: nv50/nv50_miptree.c:132: nv50_mt_choose_storage_type: Assertion
`ms == 0' failed.
The game starts properly if I disable DRI3 at runtime (LIBGL_DRI3_DISABLE=1)

The problem is present since

commit 241e7289f25a342a457952b9b0e539c2f0b81d99
Author: Maarten Lankhorst <maarten.lankhorst at ubuntu.com>
Date:   Wed Oct 22 11:04:16 2014 +0200

    enable dri3 support without glamor

When replaying the trace with glretrace the message about the assertion is not
present, but glretrace segfaults with signal 11.

Fedora 22 32-bit
xorg-x11-server-Xorg-1.17.2-1.fc22.i686
Kernel 4.0.6-300.fc22.i686+PAE
VGA compatible controller: NVIDIA Corporation G92 [GeForce GTS 250] (rev a2)
(prog-if 00 [VGA controller])
libdrm-2.4.62-1-g676c806
xf86-video-nouveau-1.0.11-23-gdfd827c
Mesa 10.6-branchpoint-826-gff0a41b

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