caffe2/plan_executor: wait for 1 minute after exception and then abort (#45297)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45297
If we have two concurrent substeps and one of them throws an exception and the other is blocking, we'll currently hang. This waits up to 1 minute for it to complete before terminating the process.
Test Plan: buck test caffe2/caffe2:caffe2_test_cpu -- PlanExecutorTest --stress-runs 100
Reviewed By: dahsh
Differential Revision: D20850851
fbshipit-source-id: 330503775d8062a34645ba55fe38e6770de5e3c7
