
After picking up the crowbar, I crawl into this duct.
Spoiler:If I run along the duct and jump down without hesitating, it always crashes.
If, however, I stop before I jump down, then it will autosave and I can continue to smash the next grill to jump into the big warehouse.
Just to see what happens, I saved the game before I jumped down. Loading the saved game also continued on without crashing.
The crash with Cheogsh2 reported in http://forum.drdteam.org/viewtopic.php?f=24&t=5141 seems to have resolved itself, or at least I could not reproduce it with r858.