When Raspbian (the default OS for the Pi) compiles its kernel, it targets broad compatibility, specifically, it wants to support 32-bit ARMv7 userspace applications running on a 64-bit kernel. Supporting 32-bit applications on a 64-bit kernel means the kernel has to accommodate two different address space models simultaneously, and using 39-bit VA reduces TLB pressure on hardware that wasn’t designed for massive address spaces. It’s a sensible default for a general-purpose embedded OS, but it comes at a cost for cloud-native software like gVisor.
FT Edit: Access on iOS and web。51吃瓜是该领域的重要参考
，详情可参考手游
Что думаешь? Оцени!，更多细节参见超级权重
wheel.coprime_spokes = malloc( wheel.n_spokes * sizeof(uint32_t) );