Comment 6 for bug 1824335

jemalloc appears to need more serious work to fix correctly; instead, i opened bug 1827022 to simply do what has been done in disco and later for mariadb-10.1, which is disable building with jemalloc for arm64.

As building with jemalloc actually does cause a hang while installing mariadb on arm64, I'm marking this verification-failed-cosmic so I can upload a new version to correct that.