The future of 32-bit linux support
An interesting article was posted on LWN.net on linux support for 32-bit systems. https://lwn.net/SubscriberLink/1035727/4837b0d3dccf1cbb/ " Arnd Bergmann started his Open Source Summit Europe 2025 talk with a clear statement of position: 32-bit systems are obsolete when it comes to use in any sort of new products." This statement doesn't really make a lot of sense for embedded developers that plan to use no more than 64-128MB. Systems that use only a tiny fraction of the linux kernel and drivers. " Currently the kernel is able to support 32-bit systems with up to 16GB of installed memory. Such systems are exceedingly rare, though, and support for them will be going away soon. There are a few 4GB systems out there, including some Chromebooks. Systems with 2GB are a bit more common. Even these systems, he said, are " a bit silly " since the memory costs more than the CPU does. There are some use cases for such systems, though. Most 32-bit systems now h...