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net/http: send on closed channel #13933

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karmeye opened this issue Jan 13, 2016 · 1 comment

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@karmeye
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commented Jan 13, 2016

Using latest code in the master branch (771da53)

Got this when connecting to db (with race detector on)

2016/01/13 09:46:20 http2: panic serving 127.0.0.1:54807: send on closed channel
goroutine 2329 [running]:
net/http.(*http2serverConn).runHandler.func1(0xc825287f4f, 0xc820188280, 0xc8201430d0)
    /usr/local/go/src/net/http/h2_bundle.go:3737 +0xde
database/sql.(*DB).putConnDBLocked(0xc8200ca210, 0xc82005c230, 0x0, 0x0, 0xc8265422a0)
    /usr/local/go/src/database/sql/sql.go:940 +0x30d
database/sql.(*DB).putConn(0xc8200ca210, 0xc82005c230, 0x0, 0x0)
    /usr/local/go/src/database/sql/sql.go:906 +0x2f0
database/sql.(*DB).prepare(0xc8200ca210, 0x658a40, 0x46, 0x1, 0x1c4, 0x0, 0x0)
    /usr/local/go/src/database/sql/sql.go:1000 +0x41b
database/sql.(*DB).Prepare(0xc8200ca210, 0x658a40, 0x46, 0x11400, 0x0, 0x0)
    /usr/local/go/src/database/sql/sql.go:964 +0x87

Related to #13924 ?

@bradfitz

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commented Jan 13, 2016

Yes, duplicate.

@bradfitz bradfitz closed this Jan 13, 2016

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