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Explore the current state and future prospects of 32-bit Linux support in this 37-minute conference talk by Arnd Bergmann from Linaro, presented at a Linux Foundation event. Examine the challenges facing 32-bit Linux systems as 64-bit architectures have expanded from servers and PCs to even the smallest embedded devices, creating maintenance and development concerns for existing 32-bit hardware users. Learn about which 32-bit systems remain supported and their expected longevity, including coverage of modern ARMv7/v8 hardware, legacy ARMv4/v5/v6 machines, and various embedded CPU architectures. Understand specific technical challenges including MMU-less microcontrollers, memory constraints both large and small, running 32-bit userland on 64-bit hardware, and preparations for the 2038 epochalypse problem. Gain insights into the evolving landscape of Linux architecture support as the industry continues its transition toward 64-bit computing while maintaining compatibility with existing 32-bit systems.
