[Bug 64124] New: [r600g] aruba crash with 32bit applications on 64bit kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64124

          Priority: medium
            Bug ID: 64124
          Assignee: dri-devel at lists.freedesktop.org
           Summary: [r600g] aruba crash with 32bit applications on 64bit
                    kernel
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: swanson at ukfsn.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Created attachment 78729
  --> https://bugs.freedesktop.org/attachment.cgi?id=78729&action=edit
dmesg

With my A10-5700 ARUBA I have a problem running 32bit applications under 64bit
kernel (not tried 32bit kernel) while 64bit applications are fine. Essentially
the X server crashes with a segfault after the following messages;

radeon 0000:00:01.0: bo ffff88022f44b000 va 0x00000000 conflict with (bo
ffff88022ee16c00 0x01F00000 0x026F8000)
radeon 0000:00:01.0: bo ffff88022f44b000 don't has a mapping in vm
ffff880224c97e00
radeon 0000:00:01.0: bo ffff88022f449000 va 0x00000000 conflict with (bo
ffff88022ee16c00 0x01F00000 0x026F8000)
radeon 0000:00:01.0: bo ffff88022f449000 don't has a mapping in vm
ffff880224c97e00
radeon 0000:00:01.0: bo ffff88022ee16000 don't has a mapping in vm
ffff880224c97e00
radeon 0000:00:01.0: bo ffff88022ee16400 don't has a mapping in vm
ffff880224c97e00
[...REPEAT...]
radeon 0000:00:01.0: bo ffff88023527c000 don't has a mapping in vm
ffff880224c97e00
[CRASH]

System is running;
- Linux 3.9.0 with all radeon patches from drm-next-3.10-2 (but problem occurrs
with standard Linux 3.8 and 3.9 too, though unknown for earlier kernels)
- Current Mesa git head for both 64 and 32 bit (definitely no old libraries).

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