Backup jobs hang on 4.0.18 S3 storage

[Chris]

Thanks for the backtraces, they do point indeed to a deadlock in garbage collection. Can you verify that all the other tasks run without issues if you deactivate the garbage collection for now? Will get back to you once the critical codepath has been identified.

 

[dw-cj]

Thanks for the backtraces, they do point indeed to a deadlock in garbage collection. Can you verify that all the other tasks run without issues if you deactivate the garbage collection for now? Will get back to you once the critical codepath has been identified.

As soon as I stop the GC job (the only way to stop it is by restarting promxox-backup-proxy), backups start to work normally again. I've disabled the GC job for now. I'm assuming that everything will continue working as normal until GC runs again, as it only starts failing when GC job starts on schedule.

Thanks for looking into it.

 

[Chris]

I've send a tentative bugfix for the deadlock to the developer mailing list [0]. Thanks again for providing the backtraces!

[0] https://lore.proxmox.com/pbs-devel/20251104175208.872621-1-c.ebner@proxmox.com/T/

 

[dw-cj]

I've send a tentative bugfix for the deadlock to the developer mailing list [0]. Thanks again for providing the backtraces!

[0] https://lore.proxmox.com/pbs-devel/20251104175208.872621-1-c.ebner@proxmox.com/T/

Thanks! Any idea when a 'test' version with this fix will be included in the test repo? I'll happily try it out.