{"action":"created","issue":{"url":"https://api.github.com/repos/golang/go/issues/26475","repository_url":"https://api.github.com/repos/golang/go","labels_url":"https://api.github.com/repos/golang/go/issues/26475/labels{/name}","comments_url":"https://api.github.com/repos/golang/go/issues/26475/comments","events_url":"https://api.github.com/repos/golang/go/issues/26475/events","html_url":"https://github.com/golang/go/issues/26475","id":342767304,"node_id":"MDU6SXNzdWUzNDI3NjczMDQ=","number":26475,"title":"runtime: macOS 10.10 builder is red with TSAN memory alloc 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release notes for Go 1.11 say that our minimum macOS supported version is \"macOS 10.10 Yosemite or later\", but our macOS 10.10 column is currently red.\r\n\r\nThe first failure I see is: (rev 7951d90bc6fab62b2baacdc985156c50f1063706, which I happened to approve perhaps mistakenly thinking it was trivially correct and only affected debug mode.. maybe wrong?)\r\n\r\nhttps://build.golang.org/log/17de002c5f0eb3ea6136185d5f943d1f38eb5a63\r\n```\r\n\r\n##### Testing race detector\r\nok  \truntime/race\t33.822s\r\nok  \tflag\t1.079s\r\nok  \tnet\t1.241s\r\nok  \tos\t1.124s\r\nok  \tos/exec\t3.102s\r\nok  \tencoding/gob\t1.132s\r\n==59101==ERROR: ThreadSanitizer failed to allocate 0x10000000 (268435456) bytes at address a30000000000 (errno: 12)\r\nruntime: newstack sp=0xb0103e20 stack=[0x20c000032000, 0x20c000032800]\r\n\tmorebuf={pc:0x41bcba9 sp:0xb0103e30 lr:0x0}\r\n\tsched={pc:0x4044789 sp:0xb0103e28 lr:0x0 ctxt:0x0}\r\nruntime: gp=0x20c000076300, goid=18, gp->status=0x2\r\n runtime: split stack overflow: 0xb0103e20 < 0x20c000032000\r\nfatal error: runtime: split stack overflow\r\n\r\nruntime stack:\r\nruntime.throw(0x427c0fd, 0x1d)\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/panic.go:608 +0x6a fp=0xb0103cf0 sp=0xb0103cc0 pc=0x402d95a\r\nruntime.newstack()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/stack.go:959 +0x89f fp=0xb0103e88 sp=0xb0103cf0 pc=0x404826f\r\nruntime.morestack()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/asm_amd64.s:429 +0x8f fp=0xb0103e90 sp=0xb0103e88 pc=0x405ce5f\r\n\r\ngoroutine 18 [running]:\r\nruntime: unexpected return pc for runtime.sigpanic called from 0x41bcba9\r\nstack: frame={sp:0xb0103e28, fp:0xb0103e30} stack=[0x20c000032000,0x20c000032800)\r\n\r\nruntime.sigpanic()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/signal_unix.go:371 +0x2f9 fp=0xb0103e30 sp=0xb0103e28 pc=0x4044789\r\ncreated by runtime.gcenable\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/mgc.go:216 +0x58\r\n\r\ngoroutine 1 [chan receive, locked to thread]:\r\nruntime.gopark(0x4283908, 0x20c000082058, 0x20c00002170d, 0x3)\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/proc.go:302 +0xeb fp=0x20c000036678 sp=0x20c000036658 pc=0x402f6cb\r\nruntime.goparkunlock(0x20c000082058, 0x170d, 0x3)\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/proc.go:308 +0x53 fp=0x20c0000366a8 sp=0x20c000036678 pc=0x402f773\r\nruntime.chanrecv(0x20c000082000, 0x0, 0x20c000000301, 0x401a6b8)\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/chan.go:520 +0x20b fp=0x20c000036738 sp=0x20c0000366a8 pc=0x40085db\r\nruntime.chanrecv1(0x20c000082000, 0x0)\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/chan.go:402 +0x2b fp=0x20c000036768 sp=0x20c000036738 pc=0x40083bb\r\nruntime.gcenable()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/mgc.go:217 +0x6f fp=0x20c000036798 sp=0x20c000036768 pc=0x401a6cf\r\nruntime.main()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/proc.go:164 +0x119 fp=0x20c0000367e0 sp=0x20c000036798 pc=0x402f1c9\r\nruntime.goexit()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/asm_amd64.s:1333 +0x1 fp=0x20c0000367e8 sp=0x20c0000367e0 pc=0x405edd1\r\n\r\ngoroutine 2 [force gc (idle)]:\r\nruntime.gopark(0x4283908, 0x441b290, 0x1410, 0x1)\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/proc.go:302 +0xeb fp=0x20c000036f80 sp=0x20c000036f60 pc=0x402f6cb\r\nruntime.goparkunlock(0x441b290, 0x1410, 0x1)\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/proc.go:308 +0x53 fp=0x20c000036fb0 sp=0x20c000036f80 pc=0x402f773\r\nruntime.forcegchelper()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/proc.go:251 +0xb3 fp=0x20c000036fe0 sp=0x20c000036fb0 pc=0x402f543\r\nruntime.goexit()\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/asm_amd64.s:1333 +0x1 fp=0x20c000036fe8 sp=0x20c000036fe0 pc=0x405edd1\r\ncreated by runtime.init.4\r\n\t/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/src/runtime/proc.go:240 +0x35\r\nexit status 2\r\nFAIL\t_/private/var/folders/6g/8k13h11n2zb8hxx99wk6f6y40000gn/T/workdir/go/misc/cgo/test\t0.016s\r\n2018/07/09 15:59:30 Failed: exit status 1\r\nok  \tflag\t1.080s\r\nok  \tos/exec\t3.121s\r\n```\r\n\r\n/cc @randall77 @aclements @dvyukov "},"comment":{"url":"https://api.github.com/repos/golang/go/issues/comments/406396284","html_url":"https://github.com/golang/go/issues/26475#issuecomment-406396284","issue_url":"https://api.github.com/repos/golang/go/issues/26475","id":406396284,"node_id":"MDEyOklzc3VlQ29tbWVudDQwNjM5NjI4NA==","user":{"login":"bradfitz","id":2621,"node_id":"MDQ6VXNlcjI2MjE=","avatar_url":"https://avatars1.githubusercontent.com/u/2621?v=4","gravatar_id":"","url":"https://api.github.com/users/bradfitz","html_url":"https://github.com/bradfitz","followers_url":"https://api.github.com/users/bradfitz/followers","following_url":"https://api.github.com/users/bradfitz/following{/other_user}","gists_url":"https://api.github.com/users/bradfitz/gists{/gist_id}","starred_url":"https://api.github.com/users/bradfitz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bradfitz/subscriptions","organizations_url":"https://api.github.com/users/bradfitz/orgs","repos_url":"https://api.github.com/users/bradfitz/repos","events_url":"https://api.github.com/users/bradfitz/events{/privacy}","received_events_url":"https://api.github.com/users/bradfitz/received_events","type":"User","site_admin":false},"created_at":"2018-07-19T20:00:09Z","updated_at":"2018-07-19T20:00:09Z","author_association":"MEMBER","body":"Is this related? https://build.golang.org/log/f604c2b3b19e22e4d9092fc0c7fc18b1488f7c65"}}
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