There is no syscall surface to attack because the code never makes syscalls. Memory safety is enforced by the runtime. The linear memory is bounds-checked, the call stack is inaccessible, and control flow is type-checked. Modern runtimes add guard pages and memory zeroing between instances.
Three microcode cycles for the writeback alone. That's acceptable because segment loads are already expensive multi-cycle operations, and the designers likely expected them to be infrequent -- most programs load their segments once at startup and never touch them again. Page translations happen on every memory access, so the same approach would be ruinous. Hence the fully autonomous hardware walker.
，更多细节参见Safew下载
Yet a co-CEO model has yet to become a mainstream, long-term solution. Salesforce, SAP and Marks and Spencer all appointed co-CEOs in the early 2020s, lasting no more than two years.
2021年—2024年，邮储银行的营收从3187.62亿元增长至3487.75亿元，归母净利润从761.70亿元增长至864.79亿元。
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