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[Xen-bugs] [Bug 636] New: AGP GART not initializing on AMD64 preventing

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Subject: [Xen-bugs] [Bug 636] New: AGP GART not initializing on AMD64 preventing X11 DRI OpenGL
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Date: Sat, 06 May 2006 03:00:35 -0700
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           Summary: AGP GART not initializing on AMD64 preventing X11 DRI
           Product: Xen
           Version: 3.0.1
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: grantma@xxxxxxxxxxxxxxx

The AGP GART is not initialising, preventing X11 DRI from starting in dom0. 
This works on x86_32.  When I modprobe the md64_agp and agpgart modules, the
kernel logs the following messages:

Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected AGP bridge 0
agpgart: Setting up Nforce3 AGP.
agpgart: unable to get memory for graphics translation table.
agpgart: agp_backend_initialize() failed.
agpgart-amd64: probe of 0000:00:00.0 failed with error -12
[drm] Initialized drm 1.0.1 20051102
ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [APC5] -> GSI 16 (level, low) ->
IRQ 20
[drm] Initialized radeon 1.22.0 20051229 on minor 0
[drm:radeon_cp_init] *ERROR* radeon_cp_init called without lock held
[drm:drm_unlock] *ERROR* Process 20938 using kernel context 0

This all works on X86_32   Should be easy enough to fix.


Matthew Grant

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