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go/build: data race? #7438

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@bradfitz

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@bradfitz
I just saw this fly by while doing a build....

Data race in go/build?

camlistore.org/third_party/github.com/lib/pq/oid
camlistore.org/third_party/github.com/lib/pq
camlistore.org/third_party/github.com/ziutek/mymysql/godrv
camlistore.org/pkg/sorted/postgres
camlistore.org/third_party/github.com/mattn/go-sqlite3
camlistore.org/pkg/sorted/mysql
camlistore.org/pkg/blobserver/cond
camlistore.org/cmd/camget
camlistore.org/cmd/camput
camlistore.org/pkg/server
==================
WARNING: DATA RACE
Write by goroutine 8:
  main.gcToolchain.ld()
      /Users/bradfitz/go/src/cmd/go/build.go:1742 +0xd0f
  main.gcToolchain.ld·i()
      /Users/bradfitz/go/src/cmd/go/build.go:1 +0xf0
  main.(*builder).build()
      /Users/bradfitz/go/src/cmd/go/build.go:988 +0x4a13
  main.func·005()
      /Users/bradfitz/go/src/cmd/go/build.go:682 +0x577
  main.func·006()
      /Users/bradfitz/go/src/cmd/go/build.go:739 +0x1b0

Previous write by goroutine 9:
  main.gcToolchain.ld()
      /Users/bradfitz/go/src/cmd/go/build.go:1742 +0xd0f
  main.gcToolchain.ld·i()
      /Users/bradfitz/go/src/cmd/go/build.go:1 +0xf0
  main.(*builder).build()
      /Users/bradfitz/go/src/cmd/go/build.go:988 +0x4a13
  main.func·005()
      /Users/bradfitz/go/src/cmd/go/build.go:682 +0x577
  main.func·006()
      /Users/bradfitz/go/src/cmd/go/build.go:739 +0x1b0

Goroutine 8 (running) created at:
  main.(*builder).do()
      /Users/bradfitz/go/src/cmd/go/build.go:745 +0x718
  main.runInstall()
      /Users/bradfitz/go/src/cmd/go/build.go:336 +0x426
  main.main()
      /Users/bradfitz/go/src/cmd/go/main.go:161 +0x729

Goroutine 9 (running) created at:
  main.(*builder).do()
      /Users/bradfitz/go/src/cmd/go/build.go:745 +0x718
  main.runInstall()
      /Users/bradfitz/go/src/cmd/go/build.go:336 +0x426
  main.main()
      /Users/bradfitz/go/src/cmd/go/main.go:161 +0x729
==================
camlistore.org/pkg/importer
camlistore.org/pkg/serverinit
camlistore.org/pkg/serverinit
camlistore.org/pkg/sorted/mongo
camlistore.org/pkg/blobserver/encrypt
camlistore.org/pkg/blobserver/google/cloudstorage
camlistore.org/third_party/code.google.com/p/google-api-go-client/googleapi
camlistore.org/pkg/blobserver/remote
camlistore.org/third_party/code.google.com/p/google-api-go-client/drive/v2
camlistore.org/pkg/blobserver/replica
camlistore.org/pkg/misc/amazon/s3
camlistore.org/pkg/blobserver/s3
camlistore.org/pkg/blobserver/shard
camlistore.org/pkg/importer/dummy
camlistore.org/third_party/github.com/garyburd/go-oauth/oauth
camlistore.org/pkg/importer/foursquare
camlistore.org/pkg/importer/flickr
camlistore.org/pkg/blobserver/google/drive/service
camlistore.org/pkg/index/kvfile
camlistore.org/pkg/blobserver/google/drive
camlistore.org/pkg/index/mongo
camlistore.org/pkg/index/mysql
camlistore.org/pkg/index/postgres
camlistore.org/pkg/throttle
camlistore.org/third_party/github.com/bradfitz/runsit/listen
camlistore.org/third_party/bazil.org/fuse
camlistore.org/pkg/webserver
camlistore.org/pkg/sorted/sqlite
camlistore.org/cmd/camtool
camlistore.org/pkg/index/sqlite
camlistore.org/server/camlistored


$ go version
go version devel +1424452d7eb5 Wed Feb 26 10:51:00 2014 -0800 darwin/amd64

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