nonmoving: Fix various data races found by ThreadSanitizer

Here we fix a number of data races spotted by ThreadSanitizer. For better or worse, there is nothing here that would be unsound on x86-64, although AArch64 is another story.

Based on !9372 (closed).

added RTS non-moving GC labels

changed the description

added 22 commits

• 16a95a38 - rts: Encapsulate sched_state
• 6a4fd558 - PrimOps: Fix benign MutVar race
• 149a91be - rts: Style fix
• c5b78290 - compiler: Use release store in eager blackholing
• ab656ae7 - rts: Fix ordering of makeStableName
• 93265cc3 - rts: Use ordered accesses instead of explicit barriers
• a6ca5913 - rts: Statically allocate capabilities
• 60ffe15f - rts: Ensure that all accesses to pending_sync are atomic
• 5e565a67 - rts: Note race with wakeBlockingQueue
• 1e04cf59 - nonmoving: Fix race in marking of blackholes
• 2f938591 - nonmoving: Fix segment list races
• 2726d722 - nonmoving: Use atomic when looking at bd->gen
• d3cd49cf - nonmoving: Eliminate race in bump_static_flag
• 6f52b643 - nonmoving: Ensure that mutable fields have acquire barrier
• 947feeab - nonmoving: Fix races in collector status tracking
• 5b09ee54 - nonmoving: Make segment state updates atomic
• 651f6f3f - nonmoving: Refactor update remembered set initialization
• b2b2008f - nonmoving: Ensure that we aren't holding locks when closing them
• c868eee0 - nonmoving: Make bitmap accesses atomic
• 87e3d20d - nonmoving: Fix benign race in update remembered set check
• a5b1d1d2 - nonmoving: Fix race in shortcutting
• e090f105 - nonmoving: Make free list counter accesses atomic

Compare with previous version

mentioned in issue #22621 (closed)

added 130 commits

• e090f105...3d55d8ab - 117 commits from branch master
• 2d71481a - nonmoving: Fix race in marking of blackholes
• d92b5bf5 - nonmoving: Fix segment list races
• 0b0d924e - nonmoving: Use atomic when looking at bd->gen
• 9a9874d2 - nonmoving: Eliminate race in bump_static_flag
• d6990e67 - nonmoving: Ensure that mutable fields have acquire barrier
• 83c2876d - nonmoving: Fix races in collector status tracking
• 377697ea - nonmoving: Make segment state updates atomic
• c96fc9d5 - nonmoving: Refactor update remembered set initialization
• 71aea6d3 - nonmoving: Ensure that we aren't holding locks when closing them
• 2d10d8df - nonmoving: Make bitmap accesses atomic
• 7570ae43 - nonmoving: Fix benign race in update remembered set check
• b6a3ab00 - nonmoving: Fix race in shortcutting
• 5a403535 - nonmoving: Make free list counter accesses atomic

Compare with previous version

approved this merge request

assigned to @marge-bot

added backport needed:9.6 label

I will attempt to batch this MR (!9610 (closed))...

Merged in 36c9f23c

closed

Backported to %9.6.1

removed backport needed:9.6 label

added backport needed:9.4 label

mentioned in merge request !10269 (closed)

Backported to %9.4.5 in !10199 (merged)

removed backport needed:9.4 label