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net: TestLookupPTR failures on windows-amd64-longtest builder #38111

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bcmills opened this issue Mar 27, 2020 · 2 comments
Open

net: TestLookupPTR failures on windows-amd64-longtest builder #38111

bcmills opened this issue Mar 27, 2020 · 2 comments

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@bcmills
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@bcmills bcmills commented Mar 27, 2020

It's not obvious to me whether the test is flaky, the builder has a flaky network connection, or the test is detecting something that is actually wrong.

CC @mikioh @bradfitz @ianlancetaylor (for net), @dmitshur, @toothrot, @cagedmantis, @andybons (for builders)

2020-03-26T17:48:20-918d4d4/windows-amd64-longtest
2020-03-06T14:41:22-2b0f481/windows-amd64-longtest
2020-01-09T18:00:06-8ac98e7/windows-amd64-longtest
2019-12-30T09:34:53-4b43700/windows-amd64-longtest
2019-11-13T08:07:51-bf5f641/windows-amd64-longtest

@bcmills
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@bcmills bcmills commented Mar 27, 2020

There are at least two different failure modes:

--- FAIL: TestLookupPTR (3.92s)
    lookup_windows_test.go:167: skipping failed lookup 1.1.1.1 test: exit status 1: 
        Pinging one.one.one.one [1.1.1.1] with 32 bytes of data:
        Request timed out.
        
        Ping statistics for 1.1.1.1:
            Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),
    lookup_windows_test.go:172: different results 1.1.1.1:	exp:null	got:["one.one.one.one."]
FAIL
FAIL	net	66.044s
--- FAIL: TestLookupPTR (0.07s)
    lookup_windows_test.go:160: failed 1.1.1.1: lookup 1.1.1.1: dnsquery: DNS server failure.
    lookup_windows_test.go:163: no results
    lookup_windows_test.go:172: different results 1.1.1.1:	exp:[]	got:null
FAIL
FAIL	net	57.951s
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