Bug 23037 - R600 render can cause recrusive call to rcommonFlushCmdBuf if using large VBO object
Summary: R600 render can cause recrusive call to rcommonFlushCmdBuf if using large VBO...
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/r300 (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
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Reported: 2009-07-30 04:05 UTC by Pauli
Modified: 2009-09-01 09:34 UTC (History)
1 user (show)

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Attachments
Backtrace from freeze (5.97 KB, text/plain)
2009-07-30 04:05 UTC, Pauli 		Details
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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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