after look journal 改后录像日志
after r look journal 改后录像日志
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When the server started up again after the crash, the XFS code would look at the journal, realize the situation, and fill those incomplete data blocks with binary zeros as a security precaution.
服务器在崩溃后再次启动时，XFS代码会查看日志，了解情况，把那些不完整的数据块填上二进制零以预防安全性问题。
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