dotnet/runtime

dump system log on macos when test run terminates unexpectedly

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#98,132 opened on Feb 7, 2024

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area-Infrastructure-librarieshelp wanted

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Description

see context in https://github.com/dotnet/runtime/pull/97624

we want to dump the last few minutes/few tens of lines of the system log when unit tests terminate with an error. dmesg works on Linux, but gets this on macOS

Unable to obtain kernel buffer: Operation not permitted
usage: sudo dmesg

@am11 offered to make it use log on macOS (I don't have hardware to verify on).

Contributor guide

Research direction
Investigate how to capture the last few minutes of system logs on macOS using the `log show` command, and implement a fallback in the test infrastructure similar to the existing Linux `dmesg` usage. Test on a macOS machine and ensure it works without sudo permissions.
Tech stack
csharpshell
Domain
testingdevops
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Gitshell scriptingmacOS
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65