[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

            Bug ID: 88786
           Summary: Radeon Hawaii crash on a 32-bit kernel
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: terraluna977 at gmail.com
        QA Contact: terraluna977 at gmail.com

Created attachment 112799
  --> https://bugs.freedesktop.org/attachment.cgi?id=112799&action=edit
dmesg booted with drm.debug

The new MSI Hawaii board, used single or 2-headed.
The crash in 
[    5.654006] kernel BUG at drivers/gpu/drm/radeon/radeon_sa.c:321!
[    5.654008] invalid opcode: 0000 [#1] PREEMPT SMP 

The crash is 100% repeatable. The system will boot OK to X with
radeon.modeset=0.
The kernel has added trace to verify the firmware requested.

Unclear about 64-bit behavior, since I am booting a live USB distro.
Distro based on Debian Jessie, with
X.Org X Server 1.16.2.901 (1.16.3 RC 1)
Release Date: 2014-12-09

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