golang issues on releng12 ?

mike tancsa mike at sentex.net
Sat Jul 11 15:02:16 UTC 2020


Ran into a strange issue, not sure what the cause is.  We make heavy use
of zrepl for zfs backups and version control.  After updating to a
kernel from July 2nd from June 10th, the zrepl daemon (written in
golang) started to hang and get stuck in some uwait state.  Kill -9 was
the only way to stop it. It would run again for a few hrs and then stall
out once more.  It was a slightly older version, so upgraded to the
latest from pkgs. Still the same issue after a few hours of use. 
However, compiling zrepl from the ports works just fine (which meant
compiling golang on the box etc). At least its been running for 24hrs
now without issue.  Is it possible that some of the changes to RELENG12
from June 10th to July 2nd might have broken some ABI that golang apps
rely on that might account for zrepl hanging ?

    ---Mike



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