Comment 4 for bug 1997375

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John Edwards (john-cornerstonelinux) wrote : Re: isc-worker0003 segfault at 8 ip 00007f2361995166 sp 00007f235b2da530 error 4 in libisc. so.1601.0.0[7f2361973000+46000]

Another bug report with similar symptoms is https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/1954854 - although that was from Dec 2021 and occurred soon after an upgrade from Ubuntu 18.04 to 20.04, whereas most of my servers have been running Ubuntu 20.04 for 6 months to a year.