On Wed, Dec 28, 2016 at 09:29:11AM +0100, Adam Borowski wrote: > However, all my testing so far was on vgacon (because nvidia). When on > nouveau, it locks up immediately, after 6 iterations. Tried on 4.10-rc1+ > (current linus/master). > > Same on a crap armhf laptop using 3.0 vendor kernel, proprietary mali > module. Like nouveau, that's some kind of graphical console. > > It's possible it's not a matter of console driver but screen size; however, > some vandal removed svgatextmode and snapshot.d.o is down, so I can't test > that right now (assuming svgatextmode would compile...).
... and looks like it's screen size after all. Can't use svgatextmode to resize vgacon anymore, but it's possible to change font size on (fb/etc)con. No idea how to change the resolution these days, biggest font available is 32x16 -- on 1280x1024 (my monitors) this gives 80x32, on 1280x800 (the armhf laptop) 80x25 (spot on!). 80x32, nouveau, 4.10-rc1+: all is fine. Resize back: stuck process sleeping on paste_????, once killed it starts taking 100% CPU; otherwise the system is working. 80x25, mali, 3.0: somehow paste still gets stuck but ^C kills it cleanly, the process goes away. Resize back: the reproducer locks up the kernel dead, can switch VTs and get keyboard echo in canon mode but nothing else (I got no working serial/USB/netconsole for that laptop). Meow! -- Autotools hint: to do a zx-spectrum build on a pdp11 host, type: ./configure --host=zx-spectrum --build=pdp11
