So I can trigger it so I'll try to bisect it.
Squeak6.0beta latest update: #22053
platform sources revision VM: 202206181934 XXX@YYY/opensmalltalk-vm Date: Sat Jun 18 12:34:41 2022 CommitHash: 27657fe6a Plugins: 202206181934 XXX@YYY:tmp/opensmalltalk-vm CoInterpreter VMMaker.oscog-eem.3188 uuid: 010bab73-d814-4c05-b0f1-f2da78c1568f Jun 20 2022 StackToRegisterMappingCogit VMMaker.oscog-eem.3188 uuid: 010bab73-d814-4c05-b0f1-f2da78c1568f Jun 20 2022
Ubuntu 22.04 - x86-64, does it, see below
Raspberry PI ARMv8 64 bit based on Debian 11.3, ie, April 4 2022, does not.
Raspberry PI ARMv7 32 bit based on Debian 11.3, ie, April 4 2022 does not. Of course this one is the 32 bit VM and the 32 bit image but the identical image/vm combo as above.
Ubuntu 18.04 ARMv8 64 bit does it, also see below.
========================== Ubuntu 22.04 - x86-64.
$ while true; do ps -C squeak -o rss; sleep 5; done RSS 71668 RSS 71928 RSS 72984 RSS 73248 RSS 73248 RSS 73512 RSS 73776 RSS 73776 RSS 74040 RSS 74040 RSS 74304 RSS 74304 RSS 74568 RSS 74568 RSS 74832 RSS 75096 RSS 75096 RSS 75360 RSS 75360 RSS 75624 RSS 75624 RSS 75888 RSS 76152 RSS 76152
===================================== Ubuntu 18.04, ARMv8 64 bit
76764 RSS 76764 RSS 77028 RSS 77292 RSS 77292 RSS 77556 RSS 77556 RSS 77820 RSS 77820 RSS 78084 RSS 78348 RSS 78348 RSS 78612 RSS 78612 RSS 78876 RSS 78876 RSS 79140 RSS 79404 RSS 79404 RSS 79668 RSS 79668 RSS 79932 RSS 79932 RSS 80196 RSS 80460