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encoding/pem: unexpected segfault in darwin/amd64 TryBot run #21103

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bcmills opened this issue Jul 20, 2017 · 3 comments
Closed

encoding/pem: unexpected segfault in darwin/amd64 TryBot run #21103

bcmills opened this issue Jul 20, 2017 · 3 comments
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FrozenDueToAge help wanted NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Testing An issue that has been verified to require only test changes, not just a test failure.
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Go1.10

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@bcmills
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bcmills commented Jul 20, 2017 •
edited

What version of Go are you using (go version)?

darwin-amd64-10_11 at cb1917994cf16b221ac82a5ea8331e2a80b8f1a6

What did you do?

Ran TryBots for https://golang.org/cl/50371.

What did you expect to see?

All tests pass, or any failures are related to my change.

What did you see instead?

https://storage.googleapis.com/go-build-log/cb191799/darwin-amd64-10_11_f6d4a343.log

darwin-amd64-10_11 at cb1917994cf16b221ac82a5ea8331e2a80b8f1a6

[…]

##### Testing packages.
[…]
ok  	encoding/binary	0.019s
ok  	encoding/csv	0.027s
ok  	encoding/gob	0.056s
ok  	encoding/hex	0.016s
ok  	encoding/json	0.334s
signal: segmentation fault
FAIL	encoding/pem	1.021s
ok  	encoding/xml	0.041s
ok  	errors	0.013s
2017/07/20 11:12:54 Failed: exit status 1


Error: tests failed: dist test failed: go_test:encoding/csv: exit status 1
@bradfitz bradfitz added help wanted NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Testing An issue that has been verified to require only test changes, not just a test failure. labels Jul 20, 2017
@bradfitz bradfitz added this to the Go1.10 milestone Jul 20, 2017
@bcmills
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bcmills commented Jul 20, 2017

There are two weird features in the log: one is the signal: segmentation fault, and the other is that the last line reports the error as go_test:encoding/csv, but the summary block above shows encoding/csv as passing and encoding/pem as failing.

@bradfitz
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The csv-vs-pem is probably due to test sharding. The build coordinator gives out chunks of test units to different machines and stitches together the output. The name of that test unit was probably "encoding/csv" because that was the first in the chunk or something.

/cc @andybons @cybrcodr @adams-sarah

@rsc
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rsc commented Nov 22, 2017

Timed out.

@rsc rsc closed this as completed Nov 22, 2017
@golang golang locked and limited conversation to collaborators Nov 22, 2018
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FrozenDueToAge help wanted NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Testing An issue that has been verified to require only test changes, not just a test failure.
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