diagnostics: lock while populating hardware information #61100
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The shirou/gopsutil/host library that we use to gather hardware information
during diagnostics reporting is not multi-thread safe. As one example, it
lazily initializes a global map the first time the Virtualization function
is called, but takes no lock while doing so. Work around this limitation by
taking our own lock.
This code never triggered race conditions before, but is doing so after recent
changes I made to the diagnostics reporting code. Previously, we were using a
single background goroutine to do both diagnostics reporting and checking for
updates. Now we are doing each of those on different goroutines, which triggers
race detection.
Fixes #61091
Release justification: fixes for high-priority or high-severity bugs in existing
functionality
Release note: None