Detecting and handling an expansion card fault during system initialization
US10146626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0766
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes running a system mainline initialization process on a compute node that includes an expansion card with read-only memory storing expansion card initialization code. The method obtains and executes the expansion card initialization code from the read-only memory to perform initialization of the expansion card. The method further includes updating a current operational progress state of the expansion card initialization stored in non-volatile memory of the node as the expansion card initialization moves through a plurality of operational progress states, detecting a fault, such as a hung condition, during the expansion card initialization in response to exceeding a predetermined time period in the current operational progress state, and storing a fault indication in the non-volatile memory, wherein the fault indication identifies the card experiencing the fault. Optionally, the method may reset the node and bypass initializing the card associated with the fault indication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.