Real-world failures
Read-only root filesystem — the container itself is immutable。关于这个话题，旺商聊官方下载提供了深入分析
。关于这个话题，雷电模拟器官方版本下载提供了深入分析
Nearly every protection-related instruction -- far CALL, far JMP, far RET, INT, IRET, MOV to segment register, task switch -- needs to load a segment descriptor from the GDT or LDT. The 386 microcode centralizes this into a shared subroutine called LD_DESCRIPTOR, which reads the 8-byte descriptor from memory and feeds the high DWORD (containing Type, DPL, S, and P bits) to the Test PLA for validation.，详情可参考91视频
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