David Hows added a comment - Oct 01 2015 04:04:35 AM +00:00 - edited Alex Gorrod , Scope of Change Add Asserts to functions which peripherally assume that session dhandle has been set. This is normally those which are not concerned with the contents of a tree itself, but are looking for things from a btree - such as the block manager - to dump out addresses Add explicit btree to function calls which will ultimately use a btree at lower levels __wt_debug_tree and __wt_debug_page can take an explicit tree as an argument (along with all callers between these and __debug_page). The __debug_page function can set the session dhandle in this case for use in all sub-callers. Comments, specific focus on explaining why the __wt functions above will take an explicit btree as an argument - mainly that there is no 100% guarantee that there will always be a dhandle set when the debug functions are called, as they are called from within a debugger and there may not be a dhandle set when this function is called. The change here is to obviate manual interventions from within GDB prior to calling, like the need to ensure a dhandle is set on the session when debugging