WARNING: *****: may be truncated or incomplete
PT_LOAD p_offset: 3225618456
p_filesz: 5368709120
bytes required: 8594327576、、期望的大小
dumpfile size: 7018375680 文件的实际大小
crash: read error: physical address: ***** type: “pud page”
问题是这个vmcore文件，不完整。这种crash直接退出，不再提供调试功能。
也许可以用这个选项尝试一下，但不能保证可以读出来，什么信息。
–minimal
Bring up a session that is restricted to the log, dis, rd, sym, eval, set and exit commands. This option may provide a way to extract some minimal/quick information from a corrupted or truncated dumpfile, or in situations where one of the several kernel sub-system initialization routines would abort the crash session.