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The goal of upstream Linux is to reduce the stackframe size on 32-bit to 1024 and on 64-bit to 1280, inline with how gcc generally works. While this hasn't been achieved yet everywhere and in all configurations, the Alpine status quo of 1024 on 64-bit is something that doesn't have plans to happen. Given that the intent was to be conservative, we raise this to 1280, rather than something large like 2048. Reference: https://lore.kernel.org/lkml/CAK8P3a0CS3QzEKEV5==qj8hUYgW+q2v1f13jA+s0TjQd8kYXFA@mail.gmail.com/
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