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【DM版本】:dm 8
【操作系统】：uos
【CPU】: aarch64
【问题描述】*：搭建主从时，主库是已经投入使用的生产环境，由于数据量很大，不能停服时间长，选择了联机备份，备份完成后在从库还原，修改dm.ini dmmal.ini dmwatcher.ini dmtimer.ini dmarch.ini。
然后关闭主库， 再以mount 方式启动主库时报错
version info: enterprise
Use normal os_malloc instead of HugeTLB
Use normal os_malloc instead of HugeTLB
DM Database Server x64 V8 1-1-88-20.06.24-123627-ENT startup...
Database mode = 0, oguid = 0
dmserver startup failed, code = -849 [Undefined exception]

日志文件里是以下错误
2024-06-16 22:34:07.870 [INFO] database P0000019679 T0000000000000019679 version info: enterprise
2024-06-16 22:34:07.874 [INFO] database P0000019679 T0000000000000019679 Database's huge_with_delta is 1, and rlog_gen_for_huge is 0!
2024-06-16 22:34:07.874 [INFO] database P0000019679 T0000000000000019679 os_sema2_create_low, create and inc sema success, key:224231371, sem_id:65536, sem_value:1!
2024-06-16 22:34:07.875 [INFO] database P0000019679 T0000000000000019679 Start by user: dmdba, IP:10.168.5.80
2024-06-16 22:34:07.880 [INFO] database P0000019679 T0000000000000019679 DM Database Server x64 V8 1-1-88-20.06.24-123627-ENT startup...
2024-06-16 22:34:07.973 [INFO] database P0000019679 T0000000000000019679 fil_sys_init
2024-06-16 22:34:08.124 [INFO] database P0000019679 T0000000000000019679 Database mode = 0, oguid = 0
2024-06-16 22:34:08.129 [INFO] database P0000019679 T0000000000000019679 Initialize temp tablespace, file path: /data/dmdba/dmdatas/seal/TEMP.DBF, code: 0
2024-06-16 22:34:08.138 [FATAL] database P0000019679 T0000000000000019679 dmserver startup failed, code = -849 [Undefined exception]

文档里没找到 -849是个什么错误，求大佬帮忙看下