On Tue, 17 Dec 2024 11:03:28 -0800 Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > On Tue, 17 Dec 2024 at 10:42, Linus Torvalds > <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > > > My initial suggestion was to just fix up the boot time array. > > > > I think that's actually wrong. Just print the raw data and analyze it > > in user space. > > .. I still think it's not the optimal solution, but fixing up the > event data from the previous boot (*before* printing it, and entirely > independently of vsnprintf()) would at least avoid the whole "mess > with vsnprintf and switch the format string around as you are trying > to walk the va_list in sync". > > Because that was really a non-starter. Both the format string hackery > and the va_list hackery was just fundamentally bogus. > > If you massage the data before printing - and independently of it - > those two issues should at least go away. But I can't massage the data without the deltas. That takes us back to having to have the same kernel and only processing kernel core data and ignoring modules. -- Steve
