CONTAP-619273: Nodes experience unexpectedly reboot when attempting to erase null endolist_node for a Multipart::TallyWaiter
Issue
- ONTAP nodes unexpectedly reboot when attempting to erase null endolist_node nodes for a Multipart::TallyWaiter. The tw is possibly malformed.
- There appear to be many suspended WAFL_SPINNP_WRITE messages and sktrace shows many MULTIPART_EXCEPTION logs.
- In both nodes, there are multiple wafl_exempt threads running concurrently.
