https://bugs.winehq.org/show_bug.cgi?id=53711
--- Comment #12 from Zeb Figura z.figura12@gmail.com --- I hate to say it, but I don't think +relay is at all useful for this kind of bug. Nor would I even use the entire +d3d log from an hours-long session, probably :-/
One thing I had asked Chiitoo for was essentially a monitoring of adapter_adjust_mapped_memory(), to see if it was gradually increasing over some long period of time. I remember that he responded, but I've forgotten what the logs looked like by now.
Along the same lines it may make sense to e.g. simply watch the process VM use, via top(1) or /proc/<tid>/stat, or something like that.