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[heap] Temporarily disable concurrent marking.

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The 6.3 branch has a data race that is fixed in 6.4 but the fix is too
large for back merging.

This CL will be back-merged to 6.3 after getting Canary coverage.

Concurrent marking will be re-enabled afterwards.

Bug: chromium:774644
Change-Id: I4112da0e133a637cc4fb52dee2e4c165cdc74f1f
Reviewed-on: https://chromium-review.googlesource.com/749811
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49080}
This commit is contained in:
Ulan Degenbaev 2017-11-02 14:27:11 +01:00 committed by Commit Bot
parent 759cfaa2ba
commit a9a50dc9a8
2 changed files with 2 additions and 2 deletions
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2
BUILD.gn
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@ -87,7 +87,7 @@ declare_args() {
v8_enable_trace_feedback_updates = false
# Sets -dV8_CONCURRENT_MARKING
v8_enable_concurrent_marking = true
v8_enable_concurrent_marking = false
# Sets -dV8_CSA_WRITE_BARRIER
v8_enable_csa_write_barrier = true

2
gypfiles/features.gypi
View File

@ -85,7 +85,7 @@
'v8_check_microtasks_scopes_consistency%': 'false',
# Enable concurrent marking.
'v8_enable_concurrent_marking%': 1,
'v8_enable_concurrent_marking%': 0,
# Controls the threshold for on-heap/off-heap Typed Arrays.
'v8_typed_array_max_size_in_heap%': 64,