1b9cd1a9d9
If `receive_writer_thread()` gets an error from `receive_process_record()`, it should be saved in `rwa->err` so that we will stop processing records, and the main thread will notice that the receive has failed. When an error is first encountered, this happens correctly. However, if there are more records to dequeue, the next time through the loop we will reset `rwa->err` to zero, allowing us to try to process the following record (2 after the failed record). Depending on what types of records remain, we may incorrectly complete the receive "successfully", but without actually having processed all the records. The fix is to only set `rwa->err` if we got a *non-zero* error. This bug was introduced by #10099 "Improve zfs receive performance by batching writes". Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Paul Dagnelie <pcd@delphix.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com> Closes #10320 |
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