Deadlock graph anomaly

• Databae

  SSC Enthusiast

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  December 17, 2025 at 6:52 am

  #4701462

  I've come across what appears to be a strange deadlock anomaly. As seen in the attached image/XML, a typical deadlock is shown (bottom), but then a completely isolated process graph is also shown (top).

  The top section has appeared in multiple deadlocks on different unrelated databases/app processes. It doesn't appear to be involved in the bottom deadlock at all. The top process looks to just be a normal parallel query execution being captured in the XML for some reason.

  I don't believe I've ever seen this before. Has anyone else come across this?

   

  Server info 

  Microsoft SQL Server 2022 (RTM-CU20-GDR) (KB5063814) - 16.0.4210.1

  • This topic was modified 3 hours, 27 minutes ago by Databae. Reason: Attempting to re-upload the XML

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