[SERVER-51239] empty somap array in backtraces on v4.4.1 Created: 30/Sep/20  Updated: 06/Dec/22

Status: Backlog
Project: Core Server
Component/s: Internal Code
Affects Version/s: 4.4.1
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Billy Donahue Assignee: Backlog - Service Architecture
Resolution: Unresolved Votes: 0
Labels: sa-remove-fv-backlog-22
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: Text File bt.txt    
Issue Links:
Related
Assigned Teams:
Service Arch
Operating System: ALL
Participants:

 Description   

From:

https://jira.mongodb.org/browse/HELP-18938?focusedCommentId=3418563&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-3418563

cleaned up and attached as bt.txt .

The "somap" field is present but mapped to an empty array in the backtrace here.
I don't know much more than that at this point, but it doesn't look correct!

Does this happen with all 4.4.1 backtraces or just this one?

This one is a seemingly infinite recursion failure, which might affect backtrace gathering? The backtracer is configured to show the first 100 frames and stop. This shows a full array of 100 frames at the same address.

{"a":"55FF0C178B7C","b":"55FF0A49B000","o":"1CDDB7C","s":"_ZN5mongo42DocumentSourceSingleDocumentTransformation9doGetNextEv","s+":"4C"},
... about 100 times.

...


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