Mark,
it seems the fix has finally arrived in the official release 3.3
branch:
https://github.com/espressif/esp-idf/issues/2892#issuecomment-658327913
https://github.com/espressif/esp-idf/commit/f4333c8e3a554e8bb4210d825cbdf4bcaa1fc1b8
Btw:
I guess that means from some manufacturing point on we should
provide two builds, one for the older hardware and one for the
modules with v3 chips, as the fix definitely has a performance
impact.
Regards,
Michael
--
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
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In the v3 silicon, the issue has been fixed, and the workaround is no longer required.