Hi there, I was checking issue https://dev.haiku-os.org/ticket/5474 and saw that in file src/system/kernel/heap.cpp, when reaching line 1675 in heap_free there's an if clause where it only marks the page as not in_use in the first case, is that correct? Shouldn't also be set when hitting the else clause? Quick link: http://grok.bikemonkey.org/source/xref/haiku/src/system/kernel/heap.cpp#1675 Thanks, Guillermo PS: I apogolize if this doesn't make sense, I took a quick look at the sources to see if I could find a hint about this issue.