Bug 23133

Summary: [945GME non-GEM] Reports erroneous hardware state
Product: xorg Reporter: Julien Cristau <jcristau>
Component: Driver/intelAssignee: Eric Anholt <eric>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
URL: http://bugs.debian.org/538442
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Xorg log none

Description Julien Cristau 2009-08-04 04:22:51 UTC 
Created attachment 28339 [details]
Xorg log

[forwarded from Debian bug#538442, submitted by Bastian Blank <waldi@debian.org>]

"The new intel driver likes to report errors in the hardware state after
some time running.
| (WW) intel(0): ESR is 0x00000011, page table error, instruction error
| (WW) intel(0): PGTBL_ER is 0x00000010, display A pte
| (WW) intel(0): Existing errors found in hardware state.

Using Xv just makes it happen faster and completely disables the output
(no log currently). Without Xv the effects includes
- glyphs are replaced by rectangles,
- background image looks like memory corruption and
- wrong colors."

kernel 2.6.30, libdrm 2.4.12, xserver 1.6.2, xf86-video-intel 2.8.0
The hardware is asus eeepc.  X log attached.

This is using a PAE kernel, which means no GEM.  I understand this is a compat path, but it seems there's some issue when using the fake bufmgr and the effects seem quite bad.  I asked Bastian to try NoAccel, will report back.
Comment 1 Julien Cristau 2009-08-04 07:42:34 UTC 
(In reply to comment #0)
> I asked Bastian to try NoAccel, will report back.

ignore that part, I had forgotten that NoAccel was removed from 2.8.0.  sigh.
Comment 2 Gordon Jin 2009-08-04 18:56:59 UTC 
I'm not sure if we need fix this path, since GEM has been enabled on PAE kernel now (bug#17993)
Comment 3 Julien Cristau 2009-08-05 02:08:19 UTC 
> --- Comment #2 from Gordon Jin <gordon.jin@intel.com>  2009-08-04 18:56:59 PST ---
> I'm not sure if we need fix this path, since GEM has been enabled on PAE kernel
> now (bug#17993)

aiui new drivers are still supposed to have some support for non-gem
kernels, if only to allow an upgrade path...
Comment 4 Eric Anholt 2009-10-23 14:54:54 UTC 
The PAE issue is long fixed, so there should be no reason to use broken compat paths any more.

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