On Sat, Apr 25, 2020 at 2:41 PM Theo de Raadt <dera...@openbsd.org> wrote: > > Amelia A Lewis <amyz...@talsever.com> wrote: > > > So, and I recognize that the answer might reasonably be "go read more > > code and figure it out yourself," a question for Theo and others if you > > have a moment: why couldn't an arch expand past sixteen? It seems, both > > from the math calculating struct size (which may be mistaken, in which > > case I apologize) and in the comment for MAXMAXPARTITIONS that more > > *are* possible. > > Because there is another reason. Here are the device nodes for > two sequentially-numbered disks. > > brw-r----- 1 root operator 4, 0 Apr 17 11:50 sd0a > brw-r----- 1 root operator 4, 1 Apr 17 11:50 sd0b > brw-r----- 1 root operator 4, 2 Apr 17 11:50 sd0c > brw-r----- 1 root operator 4, 3 Apr 17 11:50 sd0d > brw-r----- 1 root operator 4, 4 Apr 17 11:50 sd0e > brw-r----- 1 root operator 4, 5 Apr 17 11:50 sd0f > brw-r----- 1 root operator 4, 6 Apr 17 11:50 sd0g > brw-r----- 1 root operator 4, 7 Apr 17 11:50 sd0h > brw-r----- 1 root operator 4, 8 Apr 17 11:50 sd0i > brw-r----- 1 root operator 4, 9 Apr 17 11:50 sd0j > brw-r----- 1 root operator 4, 10 Apr 17 11:50 sd0k > brw-r----- 1 root operator 4, 11 Apr 17 11:50 sd0l > brw-r----- 1 root operator 4, 12 Apr 17 11:50 sd0m > brw-r----- 1 root operator 4, 13 Apr 17 11:50 sd0n > brw-r----- 1 root operator 4, 14 Apr 17 11:50 sd0o > brw-r----- 1 root operator 4, 15 Apr 17 11:50 sd0p > brw-r----- 1 root operator 4, 16 Apr 17 11:50 sd1a > brw-r----- 1 root operator 4, 17 Apr 17 11:50 sd1b > brw-r----- 1 root operator 4, 18 Apr 17 11:50 sd1c > brw-r----- 1 root operator 4, 19 Apr 17 11:50 sd1d > brw-r----- 1 root operator 4, 20 Apr 17 11:50 sd1e > brw-r----- 1 root operator 4, 21 Apr 17 11:50 sd1f > brw-r----- 1 root operator 4, 22 Apr 17 11:50 sd1g > brw-r----- 1 root operator 4, 23 Apr 17 11:50 sd1h > brw-r----- 1 root operator 4, 24 Apr 17 11:50 sd1i > brw-r----- 1 root operator 4, 25 Apr 17 11:50 sd1j > brw-r----- 1 root operator 4, 26 Apr 17 11:50 sd1k > brw-r----- 1 root operator 4, 27 Apr 17 11:50 sd1l > brw-r----- 1 root operator 4, 28 Apr 17 11:50 sd1m > brw-r----- 1 root operator 4, 29 Apr 17 11:50 sd1n > brw-r----- 1 root operator 4, 30 Apr 17 11:50 sd1o > brw-r----- 1 root operator 4, 31 Apr 17 11:50 sd1p > > Look very carefully at this column ^^ >
Are they allocated in the kernel in a linear fashion? If not, you could allocate additional nodes under a spare major for the extra partitions. If so, well I'm just talking out of my arse. I'd see for myself if I could find where they're allocated. I'll have more of a deep dive later. -- Aaron Mason - Programmer, open source addict I've taken my software vows - for beta or for worse
