Random test failures with SIGBUS: bus error on macos-arm64

[samanhappy]

We are encountering some random test failures, as shown in the following examples:

• Test Failure 1
• Test Failure 2
• Test Failure 3
• Test Failure 4

These issues seem to have been introduced by PR #570. Additional tests are needed to identify the root cause.

[samanhappy]

There is an existing issue regarding the SIGBUS: bus error in the bytedance/mockey library. We can track that issue as well for any relevant updates.

[samanhappy]

Hi @qdongxu, I noticed from the PR history that you have a Mac with an M1 chip. Could you help us test the bus error issue using your device?

[qdongxu]

Hi @qdongxu, I noticed from the PR history that you have a Mac with an M1 chip. Could you help us test the bus error issue using your device?

Sure. I will have a try and feedback.

[qdongxu]

I didn't see the error message as the Test Failure links in this issue has expired. But this is what I observed on Mac M1

go version go1.24.2 darwin/arm64
Darwin Kernel Version 24.5.0: Tue Apr 22 19:54:49 PDT 2025; root:xnu-11417.121.6~2/RELEASE_ARM64_T6000 arm64

1. All test cases succeeded when running in debug mode in goland.

2. All test cases succeeded when running with flags on the shell command line

    $  go test -gcflags="all=-N -l"  ./...
   

3. Some of the test cases failed when running without the flags or non-debug mode in goland. but no text like 'SIGBUS: bus' observed. Part of the errors:

Mockey check failed, please add -gcflags="all=-N -l".
(Set env MOCKEY_CHECK_GCFLAGS=false to disable gcflags check)

--- FAIL: TestCheckPIDFile (0.20s)
    daemon_test.go:159:
                Error Trace:    /Users/username/github/easeprobe/daemon/daemon_test.go:159
                Error:          Not equal:
                                expected: -1
                                actual  : 29623
                Test:           TestCheckPIDFile
    daemon_test.go:160:
                Error Trace:    /Users/username/github/easeprobe/daemon/daemon_test.go:160
                Error:          Expected nil, but got: &errors.errorString{s:"pid file(dir/easedprobe.pid) found, ensure EaseProbe(29623) is not running"}
                Test:           TestCheckPIDFile
FAIL
FAIL    github.com/megaease/easeprobe/daemon    1.072s
ok      github.com/megaease/easeprobe/eval      (cached)

Mockey check failed, please add -gcflags="all=-N -l".
(Set env MOCKEY_CHECK_GCFLAGS=false to disable gcflags check)

--- FAIL: TestEaseProbeFail (0.20s)
    easeprobe_test.go:62:
                Error Trace:    /Users/username/github/easeprobe/global/easeprobe_test.go:62
                Error:          Not equal:
                                expected: "unknown"
                                actual  : "Username-MacBook-Pro-2.local"

                                Diff:
                                --- Expected
                                +++ Actual
                                @@ -1 +1 @@
                                -unknown
                                +Username-MacBook-Pro-2.local
                Test:           TestEaseProbeFail

[qdongxu]

Supplement: no any errors after running while [ true ]; do go test -count=1 -gcflags="all=-N -l" ./... ; done for many times.

[ycydsxy]

@samanhappy hi, we've fixed this issue bytedance/mockey#68. We are looking forward to more feedbacks :)