On 2018-07-16 02:10 PM, Tom St Denis wrote: > Hi all, > > Back from vacation, booting up the latest drm-next kernel and noticed > this warning on boot. Attached. > > I like the comment in the commit 5c200f56506a142451f17dbea7befa76dd74a942: > > "This shouldn't happen, but if it does, we'll get a backtrace of the > caller, and update the pin_size values as needed." Once again, turns out it is better to be safe than sorry. :) Unfortunately, the backtrace isn't really usable, all entries have a question mark. What does grep -e UNWINDER -e DEBUG_INFO -e FRAME_POINTER .config say in your build tree? FWIW, it's the below for me, and in my backtraces some entries have no question mark, and those seem reliable. CONFIG_SCHED_OMIT_FRAME_POINTER=y CONFIG_DEBUG_INFO=y CONFIG_DEBUG_INFO_REDUCED=y # CONFIG_DEBUG_INFO_SPLIT is not set # CONFIG_DEBUG_INFO_DWARF4 is not set CONFIG_UNWINDER_ORC=y # CONFIG_UNWINDER_FRAME_POINTER is not set # CONFIG_UNWINDER_GUESS is not set -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer