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- Why I did it Commit sonic-net/sonic-platform-daemons@153ea47 changed SfpStateUpdateTask from Process to Thread. In this commit, it raises an exception in SfpStateUpdateTask to make shutdown flow fast. But it does not work on Nvidia platform as Nvidia platform is passing timeout parameter of get_change_event to select. Linux select function can not be interrupted by a Python exception. There is no such issue on Nvidia platform before that commit. However, in order to comply with the commit and make shutdown flow fast, we decided to change Nvidia platform API implementation. To fix issue #13591. - How I did it The select call in get_change_event should use no more than 1 second as timeout parameter. Outside the select call, add a while loop to make sure timeout parameter of get_change_event work as expected - How to verify it Manual test Co-authored-by: Junchao-Mellanox <57339448+Junchao-Mellanox@users.noreply.github.com> |
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