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  1. FreeNAS / TrueNAS
  2. NAS-107854

SMBD process stuck on 100%, causes slow file access

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    • Impact:
      High

      Description

      I regularly get SMBD processes that keep eating up 100% cpu, even under barely any load. After a reboot they disappear, only to come back half a day later.

       

      Today I found two processes stuck at 100%, so it is not limited to one process.

       

      Once a process hits 100% I find there is a significant slowdown in file access / read / write times.

       

      As reccommended by https://www.ixsystems.com/community/threads/1-smbd-thread-stuck-at-100-cpu.87728/ I generated a core file (using gcore, as kill -6 did not seem to work). It is attached to this issue.

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        1. core.zip
          7.32 MB
        2. 20201021141637.png
          20201021141637.png
          616 kB

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                Assignee:
                william William Grzybowski
                Reporter:
                harmen@vivition.com H de Jong
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                  Updated:
                  Resolved: