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[Bug 740087] New: MTRR allocation failed. Graphics performance may suffer.
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Sat, 7 Jan 2012 07:27:12 +0000
  • Message-id: <bug-740087-21960@http.bugzilla.novell.com/>

https://bugzilla.novell.com/show_bug.cgi?id=740087

https://bugzilla.novell.com/show_bug.cgi?id=740087#c0


Summary: MTRR allocation failed. Graphics performance may
suffer.
Classification: openSUSE
Product: openSUSE 12.1
Version: Final
Platform: x86-64
OS/Version: SuSE Other
Status: NEW
Severity: Major
Priority: P5 - None
Component: Kernel
AssignedTo: kernel-maintainers@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: fedev@xxxxxxx
QAContact: qa@xxxxxxx
Found By: ---
Blocker: ---


User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20100101
Firefox/9.0

I have a laptop with a Hybrid setup (Intel + ATI), using the radeon drivers. I
get the above message error in dmesg.

-------------------------
dmesg | grep -i mtrr
[ 0.000000] MTRR default type: uncachable
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] MTRR variable ranges enabled:
[ 72.177935] mtrr: no more MTRRs available
[ 73.039876] mtrr: no more MTRRs available
[ 73.039878] [drm] MTRR allocation failed. Graphics performance may suffer.
-------------------------

-------------------------
[ 72.967099] [drm] Radeon display connector VGA-1: No monitor connected or
invalid EDID
[ 72.967126] [drm] Internal thermal controller with fan control
[ 72.967157] [drm] radeon: power management initialized
[ 72.999133] [drm] fb mappable at 0xA0141000
[ 72.999134] [drm] vram apper at 0xA0000000
[ 72.999135] [drm] size 4325376
[ 72.999136] [drm] fb depth is 24
[ 72.999136] [drm] pitch is 5632
[ 72.999221] fb1: radeondrmfb frame buffer device
[ 72.999223] drm: registered panic notifier
[ 72.999228] [drm] Initialized radeon 2.11.0 20080528 for 0000:01:00.0 on
minor 0
[ 73.039878] [drm] MTRR allocation failed. Graphics performance may suffer.
[ 73.040125] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 73.040126] [drm] Driver supports precise vblank timestamp query.
----------------------------

----------------------------
cat /proc/mtrr
reg00: base=0x000000000 ( 0MB), size= 2048MB, count=1: write-back
reg01: base=0x0ffe00000 ( 4094MB), size= 2MB, count=1: write-protect
reg02: base=0x080000000 ( 2048MB), size= 512MB, count=1: write-back
reg03: base=0x09c000000 ( 2496MB), size= 64MB, count=1: uncachable
reg04: base=0x09b800000 ( 2488MB), size= 8MB, count=1: uncachable
reg05: base=0x100000000 ( 4096MB), size= 2048MB, count=1: write-back
reg06: base=0x158000000 ( 5504MB), size= 128MB, count=1: uncachable
reg07: base=0x160000000 ( 5632MB), size= 512MB, count=1: uncachable
-----------------------------

Let me know if you need anything else.

Thank you

Federico

Reproducible: Always

Steps to Reproduce:
1.
2.
3.

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