Prior to Linus Torvalds' Internet and electricity being knocked out by a snow storm and thus impacting the Linux 6.8 merge window, his weekend was already in rough shape due to encountering a performance regression with new Linux 6.8 code that was causing his Linux kernel builds to be as twice as long as with previous kernels
Sent in this morning for Linux 6.3 is a Linux CPU scheduler fix to deal with an imbalancing issue that's been present in the mainline kernel since a scheduler rework that landed back in late 2019.