Symptoms

• You are backing up a device with macOS Big Sur or newer OS version
• Backup randomly fails with "Operation failed due to a temporary issue in the cloud storage"
• In the error details, you see the message "Interrupted system call"
  
  Example of full error message:

  Error code: 262160
  Fields: {"$module":"disk_bundle_macia64_31771"}
  Message: The device is busy.
  ------------------------
  Error code: 43712521
  Fields: {"$module":"disk_bundle_macia64_31771","function":"file_backup_run","path":"/1/Mac-backup1.tibx"}
  Message: The operation was interrupted, should be retried
  ------------------------
  Error code: 65521
  Fields: {"$module":"disk_bundle_macia64_31771","code":4,"function":"pcs_co_dirent_first","path":"/System/Volumes/Data/Users/administrator/Library/Data"}
  Message: Interrupted system call

   

Cause

An issue the last macOS versions: EINTR error is returned. For more details, see this article

New retries will be added in the nearest agent release to resolve the issue.

In the meantime, please follow the workaround below:

Workaround

To resolve the issue, restart the backup.