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Michael Anthony Knyszek 2754d91164 runtime: add lock rank partial-order edge between fin and mheap
finlock may be held across a write barrier, which could then acquire the
mheap lock. Notably, this occurs in the mp.unlockf write in gopark where
finlock is held by the finalizer goroutines and is going to sleep.

Fixes #42062.

Change-Id: Icf76637ae6fc12795436272633dca3d473780875
Reviewed-on: https://go-review.googlesource.com/c/go/+/263678
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
2020-10-19 23:35:51 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api text/template: add CommentNode to template parse tree 2020-08-28 21:45:12 +00:00
doc crypto/hmac: panic if reusing hash.Hash values 2020-10-19 15:00:02 +00:00
lib/time lib/time, time, time/tzdata: use slim tz data format 2020-10-14 09:00:41 +00:00
misc cmd/link: support PIE internal linking on darwin/amd64 2020-10-14 00:19:23 +00:00
src runtime: add lock rank partial-order edge between fin and mheap 2020-10-19 23:35:51 +00:00
test cmd/compile: fix ICE in reporting of invalid recursive types 2020-10-19 21:30:43 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore
AUTHORS A+C: add Kush Patel (corporate CLA for Hootsuite Inc) 2020-07-08 00:10:44 +00:00
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CONTRIBUTORS CONTRIBUTORS: update for the Go 1.15 release 2020-08-10 21:51:48 +00:00
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