The program "hterm", DerHammer Terminal, has a bug in witch when opening a usb serial port, the cpu usare FOR ONE CORE jump to 100%. Now, there is a sode effect; the Task Manager widget basically hangs, the alt-tab work but severly delayed. Nothe this pc is an i8 and all the other core are basically free. Since alt-tab work, and even the hanging program GUI is responsive, although obviusly with some lag, i can disconnect the serial port and all goes back to normal. But if i don-t disconnect and let it run for a long time (30min-1h), plasmashell will crash. reproducible 100%
Plasma can't prevent misbehaving apps from consuming excessive CPU resources. You would need to report this to the developers of that program. Thanks!
hi nate not that only ONE virtual core is at 100% while the other 3 are free (so there is 1 full HW core free) and yet Plasma would CRASH. Again Plasma has 3 core it could fully use and yet it crash
ah sorry, forgot to add, hterm/linux has been recently updated and the issue fixed (i tried with the older version of hterm and could not reproduce, so maybe it was some driver issue), i need to test if this can be replicated with one bash script running 100% single core, or it need to be a gui app, in particular hterm is a GTK app so it may be also something there
>i need to test if this can be replicated with one bash script running 100% single core, Please do. Please also include a gdb trace of plasmashell when it is in this frozen state, or of the crash, otherwise we can't do a lot.