I’m not exactly where where to even start debugging but after upgrading to 25.04 whenever I browse any TrueNAS SMB share from a windows machine it will be fine for a minute or two and then just freeze up for a bit and come back and repeat. I’ve rebooted a couple times after in hopes that would clear…

What “purpose” did you have set, I had this exact issue after upgrading to 25.04 until I changed the purpose to “default share parameters”

I was running into the same thing after the upgrade. It was also causing substantial timeouts and pauses and freezes on windows computers when accessing the SMB shares. Indeed, switching a share to default share parameters and restarting smbd resolved it. However… what if I WANT it to be a multi-pro…

My guess is it is a bug related to RDMA as when I was having the issue I saw the following error every time the disconnect would happen in the windows smbclient event log: A network connection was disconnected. Frequent, unexpected disconnects when using an RDMA over Converged Ethernet (RoCE) adap…

No. The problem is interactions between local processes and kernel oplocks. In at least the case I looked at there was a local application immediately triggering kernel oplock breaks. Probably for 25.04.0 we’ll just disable oplocks entirely for this share type (i.e. no client-side caching).

Thank you @awalkerix for commenting!

interesting the fix mentioned is to return to default share parameters…that’s going to be interesting once i finish my replication. if you have to go to default parameters…which is not how i run my shares…is a big regression…i am currently troubleshooting a big performance regression in smb and isc…

We discovered a configuration issue with kernel oplocks when people have a mixture of shares that are NFS compatibility and non compatibility that basically requires disabling SMB2 leases globally if shares are configured for mixed-mode NFS access. This of course reduces ability of clients to do cli…

i am not using nfs…the share with my air works fine it is the windows shares that have serious performance regressions. iscsi is also severely impacted. everything was working fine until 25.04. i tried a ticket but it was summarily closed basically saying it’s on your end…just like the team did t…

The solution repaired my problem. Thank you!

i tired that to no avail…so i am reverting back with a clean install of EE to see if that fixes things.

Upgraded to 25.04 from 24.10 and SMB/CIFS shares intermittent

TrueNAS General

hescominsoon April 25, 2025, 9:33pm 19

I tires this as well over the past couple of days to no avail…you can follow my adventures here: 25.04 performance problems after upgrade

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Upgraded to 25.04 from 24.10 and SMB/CIFS shares intermittent

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