tree 93aaaaa932e3be0c5d1d3567d94dbd2ba73174b0
parent 4a714b27d60c461c17c9b6f4b63ebc93dc9d543d
author Alexander Aprelev <aam@google.com> 1627916350 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1627916350 +0000

[vm/concurrency] Grab constant_canonicalization_mutex before entering Safepoint scope.

If we attempt to acquire mutex once we are in Safepoint scope, we might never get it because some other thread force to a safepoint is actually holding that mutex already.

Fixes https://github.com/dart-lang/sdk/issues/46732

TEST=issue_6610_test on debug build

Change-Id: I4fc7154aae075c608af8facf53a029ddf5d0de2c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/208520
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>