英语好的能帮我翻译一下吗？ORA-00600: [KTRGCM_3]的官方解释

shiri512003

The problem happens when reclaiming space from a txn free list when migrating blob data from inline to out-of-line.
a txn free list:

migrating blob data from inline to out-of-line.
blob数据从行内迁移至行外
If remote, the LMS on instance A will try to generate the CR block; when local, the foreground process executing the query on instance B will perform the CR block generation.
CR block可以由remote节点来构造，也可以由本地节点来构造
BTW：select也可能造成cr read
RowCR is now enabled and supported with 10.2. RowCR can partially reduce the overhead of the global block cleanout/rollback problem by simply attempting to generate a CR version for the requested
不清楚什么是RowCR，从名字上感觉像是取代BlockCR而进行的一种轻量级cr read，仅为猜测。
纯属个人理解，还请大家指正。

archivelog

猜测：数据块中标记undo位置的信息（还包括锁信息、事物号和SCN）在事物提交或者回滚之后就要被删除，即所谓的“块清除”。