os: TestGetwdDeepWithPWDSet failing on android trybots

[timothy-king]

The new TestGetwdDeepWithPWDSet is failing on android trybots consistently (https://build.golang.org/).

Example output https://build.golang.org/log/1d3e4c2e0139d5c2e8f5169f4aa95d27517f862a:

--- FAIL: TestGetwdDeep (0.00s)
    getwd_unix_test.go:61: Getwd len: 274
    getwd_unix_test.go:61: Getwd len: 475
    getwd_unix_test.go:61: Getwd len: 676
    getwd_unix_test.go:61: Getwd len: 877
    getwd_unix_test.go:61: Getwd len: 1078
    getwd_unix_test.go:61: Getwd len: 1279
    getwd_unix_test.go:61: Getwd len: 1480
    getwd_unix_test.go:61: Getwd len: 1681
    getwd_unix_test.go:61: Getwd len: 1882
    getwd_unix_test.go:61: Getwd len: 2083
    getwd_unix_test.go:61: Getwd len: 2284
    getwd_unix_test.go:61: Getwd len: 2485
    getwd_unix_test.go:61: Getwd len: 2686
    getwd_unix_test.go:61: Getwd len: 2887
    getwd_unix_test.go:61: Getwd len: 3088
    getwd_unix_test.go:61: Getwd len: 3289
    getwd_unix_test.go:61: Getwd len: 3490
    getwd_unix_test.go:61: Getwd len: 3691
    getwd_unix_test.go:61: Getwd len: 3892
    getwd_unix_test.go:61: Getwd len: 4093
    getwd_unix_test.go:61: Getwd len: 0
    getwd_unix_test.go:69: open ../../../../../../../../../../../../../../../../../../../../../../../../../..: permission denied
--- FAIL: TestGetwdDeepWithPWDSet (0.00s)
    getwd_unix_test.go:57:  $PWD len: 284
    getwd_unix_test.go:61: Getwd len: 284
    getwd_unix_test.go:57:  $PWD len: 485
    getwd_unix_test.go:61: Getwd len: 485
    getwd_unix_test.go:57:  $PWD len: 686
    getwd_unix_test.go:61: Getwd len: 686
    getwd_unix_test.go:57:  $PWD len: 887
    getwd_unix_test.go:61: Getwd len: 887
    getwd_unix_test.go:57:  $PWD len: 1088
    getwd_unix_test.go:61: Getwd len: 1088
    getwd_unix_test.go:57:  $PWD len: 1289
    getwd_unix_test.go:61: Getwd len: 1289
    getwd_unix_test.go:57:  $PWD len: 1490
    getwd_unix_test.go:61: Getwd len: 1490
    getwd_unix_test.go:57:  $PWD len: 1691
    getwd_unix_test.go:61: Getwd len: 1691
    getwd_unix_test.go:57:  $PWD len: 1892
    getwd_unix_test.go:61: Getwd len: 1892
    getwd_unix_test.go:57:  $PWD len: 2093
    getwd_unix_test.go:61: Getwd len: 2093
    getwd_unix_test.go:57:  $PWD len: 2294
    getwd_unix_test.go:61: Getwd len: 2294
    getwd_unix_test.go:57:  $PWD len: 2495
    getwd_unix_test.go:61: Getwd len: 2495
    getwd_unix_test.go:57:  $PWD len: 2696
    getwd_unix_test.go:61: Getwd len: 2696
    getwd_unix_test.go:57:  $PWD len: 2897
    getwd_unix_test.go:61: Getwd len: 2897
    getwd_unix_test.go:57:  $PWD len: 3098
    getwd_unix_test.go:61: Getwd len: 3098
    getwd_unix_test.go:57:  $PWD len: 3299
    getwd_unix_test.go:61: Getwd len: 3299
    getwd_unix_test.go:57:  $PWD len: 3500
    getwd_unix_test.go:61: Getwd len: 3500
    getwd_unix_test.go:57:  $PWD len: 3701
    getwd_unix_test.go:61: Getwd len: 3701
    getwd_unix_test.go:57:  $PWD len: 3902
    getwd_unix_test.go:61: Getwd len: 3902
    getwd_unix_test.go:57:  $PWD len: 4103
    getwd_unix_test.go:61: Getwd len: 0
    getwd_unix_test.go:69: open ../../../../../../../../../../../../../../../../../../../../../../../../..: permission denied

Assigning to @ianlancetaylor as he has worked on this test previously.

[gabyhelp]

Related Issues and Documentation

• os: TestGetwdDeepWithPWDSet failures [consistent failure] #69234
• os: test failing with "UserHomeDir returned an empty string" in android arm* #28015 (closed)
• os/exec: The TestImplicitPWD test fails when running under a soft link folder. #52537 (closed)
• os: TestSpliceFile failures #58759

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[ianlancetaylor]

The fix is https://go.dev/cl/610756, which I sent out for review last week. Anybody want to review it?

[gopherbot]

Change https://go.dev/cl/610756 mentions this issue: os: check for EACCES, not EPERM, in Getwd test