Bug 8662

Summary:

AGP DMA broken for savage DRM

Product:

DRI

Reporter:

Michael Karcher <freedesktop-bugzilla>

Component:

DRM/other

Assignee:

Default DRI bug account <dri-devel>

Status:

RESOLVED FIXED

QA Contact:

Severity:

normal

Priority:

high

CC:

alexdeucher

Version:

DRI git

Hardware:

x86 (IA32)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
Fixes the reported bug	none

Description Michael Karcher 2006-10-16 09:54:55 UTC

I have a Thinkpad T20 with a Savage/IX-MV graphics chip. OpenGL applications
crash with a SIGKILL (and a "VM: killing process <foo>" in the kernel log) if
using vertex DMA. I traced down the bug: it seems to affect all AGP DMA
transfers for savages, as it results from dev->agp_buffer_map being forgot to be
set.

Patch will be attached

Comment 1 Michael Karcher 2006-10-16 09:56:19 UTC

Created attachment 7430 [details] [review]
Fixes the reported bug

Comment 2 Michael Karcher 2006-10-16 10:47:30 UTC

Sorry, wrong setting of the version field. The patch is against DRI CVS, not
Xorg CVS which does not contain DRMs at all, if I did not miss it in WebCVS.

Comment 3 Alex Deucher 2006-10-16 12:14:52 UTC

Thanks for tracking this down.  The drm is actually in git now
(http://gitweb.freedesktop.org/?p=mesa/drm.git;a=summary), but the patch should
still apply easily.  I'll test and apply this to drm git later today.

Comment 4 Alex Deucher 2006-10-16 19:23:39 UTC

pushed to drm git.

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