From: Ondřej Surý <ondrej@isc.org>
Date: Mon, 8 Jun 2026 15:55:37 +0000 (+0200)
Subject: fix: dev: Fix the memory ordering in the adaptive read-write lock
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b2ad41d3e7101e397b5836f7ca4f468f358b35a7;p=thirdparty%2Fbind9.git

fix: dev: Fix the memory ordering in the adaptive read-write lock

On hardware with a weak memory model, the internal read-write lock could
briefly admit a reader and a writer at the same time, risking sporadic
crashes or incorrect data. The reader/writer handshake now uses
sequentially consistent ordering so the two can no longer overlap.

Closes #6060

Merge branch '6060-rwlock-seq-cst-handshake' into 'main'

See merge request isc-projects/bind9!12162
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b2ad41d3e7101e397b5836f7ca4f468f358b35a7