Hi Rob, On Wed, Jan 13, 2021 at 8:58 AM Rob Landley <rob@xxxxxxxxxxx> wrote: > On 1/12/21 4:46 PM, Linus Walleij wrote: > > On Tue, Jan 12, 2021 at 3:45 PM John Paul Adrian Glaubitz > > <glaubitz@xxxxxxxxxxxxxxxxxxx> wrote: > >> Yeah, I have the same impression that's the strong commercial interest pushes > >> hobbyist use of the Linux kernel a bit down. A lot of these changes feel like > >> they're motivated by corporate decisions. > >> > >> There has to be a healthy balance between hobbyist and commercial use. I understand > >> that from a commercial point of view, it doesn't make much sense to run Linux > >> on a 30-year-old computer. But it's a hobbyist project for many people and hacking > >> Linux stuff for these old machines has a very entertaining and educational factor. > > > > This is actually one of the most interesting things written in this discussion. > > > > I have both revamped and deleted subarchitectures in the ARM tree. We > > never deleted anyone's pet project *unless* they were clearly unwilling to > > work on it (such as simply testning new patches) and agreed that it will > > not go on. > > Another fun aspect of old hardware is it serves as prior art for patents. The > j-core hardware implementation schedule has in part been driven by specific > patents expiring, as in "we can't do $FEATURE until $DATE". Indeed, so that's why the release of j4 is postponed to 2016... /me runs date (again). > When I did an sh4 porting contract in 2018 I got that board updated to a > current-ish kernel (3 versions back from then-current it hit some intermittent > nor flash filesystem corruption that only occurred intermittently under > sustained load; had to ship so I backed off one version and never tracked it > down). But these days I'm not always on the same continent as my two actual sh4 > hardware boards, have never gotten my physical sh2 board to boot, and $DAYJOB is > all j-core stuff not sh4. Which is not upstream, investing in the future? > Testing that a basic superh system still builds and boots under qemu and j-core > I can commit to doing regularly. Testing specific hardware devices on boards I > don't regularly use is a lot harder. I have the sh7751-based landisk in my board farm, so it's receiving regular boot testing. That's one of the simpler SH-based platforms, though. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds