[OmniOS-discuss] Fwd: SMB file locking problem in r151020 vs r151012

[Dan McDonald]

From he bounced file...

Sent from my iPhone (typos, autocorrect, and all)

Begin forwarded message:

> We have a legacy billing app that writes thousand of files to an SMB share on an OmniOS file server twice a month when we do billing.  It had been running r151012 for over a year but was recently upgraded to r151020.  I don’t remember the exact timing – but think we did the upgrade, rejoined it to the domain, and let it sit for about a month to see if there were any problems.  In this time, everything continued to work fine.  However, eventually, I got tired of seeing the “pool needs upgraded” message in the scrub emails, so we did a zpool upgrade, at which point the software that writes to the share started having problems (the developers say with file locking).  I still have the r151012 BE, but am uncertain what will happen when I boot back into it – will the pool degrade gracefully to only the features that older release knows about?  I’m not certain this is even an OmniOS/ZFS bug, but given that was the only change we can think of during the timeframe when the problem popped up, it seems a possibility – so I thought I’d ask the list if anyone else has seen anything like this or has ideas how to troubleshoot?