Hi,
This was originally reported as a crash of PCASpy 0.6.2.
https://github.com/paulscherrerinstitute/pcaspy/issues/25
The managed gdds are in a linked list, in class gddApplicationTypeTable. The race condition happens between getDD and freed operations when accessing this list.
Here is the proposed patch,
https://github.com/xiaoqiangwang/epics-base/commit/a2132a1f79ce8f026743db4704fc0e9528828bf8
Best
Xiaoqiang
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