Janitor highlighted that current batch of landings today brought in a memory leak in sanity2 that I saw in master next but forgot to isolate.

[18905.194295] LustreError: 273067:0:(class_obd.c:985:obdclass_exit()) obd_memory max: 316230095, leaked: 476 

The leak happens with both ldiskfs and zfs and no matter if dne is configured or not, so seems to be something generic.