FWIW, the www.equi4.com web server stopped working on [13/Oct/2020:10:46:52 +0000] and resumed on [16/Oct/2020:14:53:44 +0000] after I restarted everything. All I noticed was a runaway Tclkit process, eating up all CPU cycles. Subversion and other ports were unaffected.

Weird.

Thanks to everyone who reported this - I’ve been out of the country (and offline) for a few days, hence the delay in fixing this.