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  1. TrueNAS
  2. NAS-108542

Replicating certain files reliably crashes TrueNAS

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    • Impact:
      High

      Description

      I experienced sudden crashes/reboots of TrueNAS 12.0-RELEASE during replication of a dataset to a USB-attached local pool consisting of a single disk vdev.

      I ruled out hardware issues by replicating the issue on a virtualized TrueNAS instance with virtualized disks on separate hardware.  No hardware implicated in the original crash was used in the virtualized instance.

      I have isolated the files that cause the crash/reboot to two (broken) symlinks in a particular dataset and can provide those files for inspection.  Other broken symlinks do not cause this issue.

      Please see https://www.truenas.com/community/threads/zfs-replication-to-usb-drive-caused-nas-reboot.89152/  for more details.

        Attachments

        1. BadSymlinkStream
          36 kB
          HenchRat
        2. debug-truenas-20201207101830.tgz
          872 kB
          HenchRat
        3. stream
          36 kB
          HenchRat

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                  Assignee:
                  releng Triage Team
                  Reporter:
                  HenchRat HenchRat
                  Watchers:
                  Alexander Motin, Bonnie Follweiler, HenchRat, Ryan Moeller, Winnie Linnie
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                    Created:
                    Updated:
                    Resolved: