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10 Product Errata
25912 Rev. 3.06 March 2006
AMD-8151™ HyperTransport™ AGP3.0 Graphics Tunnel
Revision Guide
24 Deadlock Scenario With Peer-To-Peer Traffic
Description
Some PCI cards generate peer-to-peer posted-write traffic targeting the AGP bridge (from the PCI
bus, through the graphics tunnel, to the host, back to the graphics tunnel to the AGP bus). The
combination of such cards and some AGP cards can generate traffic patterns that result in a system
deadlock.
Potential Effect on System
The system deadlocks.
Suggested Workaround
Do not support PCI cards that generate peer-to-peer traffic to the AGP bridge.
Fix Planned
Yes