Linker Warnings when using go race detector

[oreissig]

Since upgrading to client_golang v1.21.0 (still present in v1.21.1) I'm seeing strange linker warnings in my console output when running go test -race:

go test -race ./pkg/...
# [...pkg path...]
ld: warning: '/private/var/folders/fq/r4cfy5dn7pv9gtjn9m87qrp00000gn/T/go-link-2788382549/000013.o' has malformed LC_DYSYMTAB, expected 98 undefined symbols to start at index 1626, found 95 undefined symbols starting at index 1626

It does not occur when

• using client_golang v1.20.5 or below
• using go test without -race

My environment:
go version go1.24.1 darwin/arm64

[dosubot]

Hey @oreissig! I'm here to help you with any bugs, questions, or contributions you have. Let's tackle this issue together!

The linker warnings you're encountering when using the Go race detector with client_golang v1.21.0 and v1.21.1 might be related to the concurrency optimizations introduced in these versions. Specifically, the Inc, Add, and Observe cumulative metrics were optimized to be up to 50% faster under high concurrent contention, which could potentially affect the behavior observed by the Go race detector ^[1].

These optimizations were reverted in version 1.21.1 due to causing regressions on low contention cases, but it seems the issue with the race detector persists. Since the warnings do not occur with client_golang v1.20.5 or below, you might consider using that version as a temporary workaround until the issue is resolved. Additionally, the problem does not appear when running go test without the -race flag, indicating a specific interaction with the race detector.

To continue talking to Dosu, mention @dosu.

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