Bug 23037

Summary:	R600 render can cause recrusive call to rcommonFlushCmdBuf if using large VBO object
Product:	Mesa	Reporter:	Pauli <suokkos>
Component:	Drivers/DRI/r300	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	hans
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	Backtrace from freeze

Description Pauli 2009-07-30 04:05:07 UTC

Created attachment 28188 [details]
Backtrace from freeze

r600_emit_cs is called by rcommonFlushCmdBuf. r600_emit_cs in turn can call back to rcommonFlushCmdBuf if there is not enough space left. This causes deadlock in DRM lock because of recursive lock acquiring.

Comment 1 Alex Deucher 2009-07-30 07:55:03 UTC

Currently the driver emits indexes directly to the command stream.  For large vertex buffers, we really need to implement index buffer support.  See the DRAW_INDEX packet in the r6xx/r7xx 3d programming guide for more info for more info.

Comment 2 Adam Jackson 2009-08-24 12:33:00 UTC

Mass version move, cvs -> git

Comment 3 Alex Deucher 2009-09-01 09:34:53 UTC

This should be fixed.  please reopen if it's still a problem.

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