Use of bbolt Go library causes 7.2 to freeze. I suspect it is triggering some sort of deadlock in mmap because threads get stuck at vmmaplk.
I managed to reproduce it consistently in a laptop with 4 cores (i5-1135G7) using one unit test from bbolt: $ doas pkg_add git go $ git clone https://github.com/etcd-io/bbolt.git $ cd bbolt $ git checkout v1.3.6 $ go test -v -run TestSimulate_10000op_10p The test never ends and this is the 'top' report: PID TID PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND 32181 438138 -18 0 57M 13M idle uvn_fls 0:00 0.00% bbolt.test 32181 331169 10 0 57M 13M sleep/1 nanoslp 0:00 0.00% bbolt.test 32181 497390 10 0 57M 13M idle vmmaplk 0:00 0.00% bbolt.test 32181 380477 14 0 57M 13M idle vmmaplk 0:00 0.00% bbolt.test 32181 336950 14 0 57M 13M idle vmmaplk 0:00 0.00% bbolt.test 32181 491043 14 0 57M 13M idle vmmaplk 0:00 0.00% bbolt.test 32181 347071 2 0 57M 13M idle kqread 0:00 0.00% bbolt.test After this, most commands just hang. For example, running a 'ps | grep foo' in another shell would do it.
