[Bug 68984] New: X11 doesn't start, Segmentation fault when using Radeon "BONAIRE" 7790 graphics card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68984

          Priority: medium
            Bug ID: 68984
          Assignee: xorg-driver-ati at lists.x.org
           Summary: X11 doesn't start, Segmentation fault when using
                    Radeon "BONAIRE" 7790 graphics card
        QA Contact: xorg-team at lists.x.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: neatnoise at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 7.0.0
         Component: Driver/Radeon
           Product: xorg

Created attachment 85257
  --> https://bugs.freedesktop.org/attachment.cgi?id=85257&action=edit
Xorg log

Hello, I've recently switched graphics card from Radeon 4850 to Radeon 7790
(BONAIRE). Xorg doesn't work with a new card. Probably, the reason of crashing
Xorg is an older package that doesn't include support of 7790 GPUs. I have no
idea which one that could be (xorg log points to crashing dri2 module). I'm
using distribution Gentoo Linux. I've rebuilt packages with radeonsi, glamor,
opencl, llvm-compiler flags.
When I startx manually, I also get:

'bonaire' is not a recognized processor for this target
'bonaire' is not a recognized processor for this target
'bonaire' is not a recognized processor for this target
Stack dump:
0. Running pass 'Function Pass Manager' on module 'tgsi'
1. Running passs 'AMDGPU DAG->DAG Pattern Instruction Selection' on function
'@main'

Installed packages' versions:
- kernel 3.11
- xorg-server 1.13.4 (also failed with 1.14.2.902)
- xf86-video-ati 7.0.0 (built with glamor, udev) (also failed with version
7.2.0)
- glamor 0.5
- mesa 9.2.0 (built with egl, opencl, llvm-compiler, vdpau, radeonsi)
- libdrm 2.4.46

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