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plugin: Problem when using net/http with plugins #23205

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cosban opened this issue Dec 21, 2017 · 4 comments
Closed

plugin: Problem when using net/http with plugins #23205

cosban opened this issue Dec 21, 2017 · 4 comments
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FrozenDueToAge WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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Unplanned

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@cosban
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cosban commented Dec 21, 2017 •
edited

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

go version go1.9.2 linux/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build540466892=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"

What did you do?

I'm attempting to use the plugin system (on linux) with the net/http package in both the plugin as well as the program that attempts to use the plugin.

See http-plugin for more details

What did you expect to see?

The program should start and immediately exit gracefully

What did you see instead?

panic: interface conversion: http.http2StreamError is not http.http2writeFramer: missing method writeFrame

goroutine 1 [running]:
plugin.lastmoduleinit(0x2184420, 0xc42000e038, 0x2185430, 0x12, 0xb940e0)
        /usr/local/go/src/runtime/plugin.go:60 +0x438
plugin.open(0x7f83b1, 0x11, 0x0, 0x0, 0x0)
        /usr/local/go/src/plugin/plugin_dlopen.go:113 +0x23a
plugin.Open(0x7f83b1, 0x11, 0xc420060750, 0x0, 0x0)
        /usr/local/go/src/plugin/plugin.go:31 +0x35
main.main()
        /go/src/github.com/cosban/http-plugin/src/host/host.go:10 +0x3a
@cosban
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cosban commented Dec 21, 2017

From README of the repository I have linked in the description of the issue:

In order for this issue to be replicated, the dummy method (found in src/host/host.go) must be present. This leads me to believe that if the net/http package is used within the "host" AND "plugin", the issue will occur.

@bradfitz bradfitz changed the title Plugin: Problem when using net/http with plugins plugin: Problem when using net/http with plugins Dec 21, 2017
@bradfitz bradfitz added this to the Unplanned milestone Dec 21, 2017
@bradfitz
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Please try the Go 1.10 beta or git master.

@bradfitz bradfitz added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Dec 21, 2017
@cosban
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cosban commented Dec 21, 2017

The issue does not appear to exist in the beta under these circumstances.

@bradfitz
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Thanks, we'll close this then. A bunch of plugin work seemed to happen during Go 1.10.

@golang golang locked and limited conversation to collaborators Dec 21, 2018
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@bradfitz @cosban @gopherbot