Intel architecture ia-32 User Manual
14-22 Vol. 3A
MACHINE-CHECK ARCHITECTURE
The basic algorithm given in Example 14-21 can be modified to provide more robust recovery
techniques. For example, software has the flexibility to attempt recovery using information
unavailable to the hardware. Specifically, the machine-check exception handler can, after
logging carefully analyze the error-reporting registers when the error-logging routine reports an
error that does not allow execution to be restarted. These recovery techniques can use external
bus related model-specific information provided with the error report to localize the source of
the error within the system and determine the appropriate recovery strategy.
techniques. For example, software has the flexibility to attempt recovery using information
unavailable to the hardware. Specifically, the machine-check exception handler can, after
logging carefully analyze the error-reporting registers when the error-logging routine reports an
error that does not allow execution to be restarted. These recovery techniques can use external
bus related model-specific information provided with the error report to localize the source of
the error within the system and determine the appropriate recovery strategy.