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Wait until child process' exe path changed when launching subprocess
Yaxiong Zhao authored
Summary:
This is useful to avoid possible cases of /proc filesystems not updated when accessing child PID.
Ran into a case where resolving exe path returns the parent process' exe path,
because the /proc file system has not been updated.

Test Plan: Jenkins

Reviewers: oazizi, #engineering

Reviewed By: oazizi, #engineering

Differential Revision: https://phab.corp.pixielabs.ai/D6470

GitOrigin-RevId: ebff75a10ec69ba30a5433facbcde37d537e3722
0fb77828
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