crash during snapshot enumeration in zfs_fsrvp - regression in port to samba 4.13

12.0 PR: https://github.com/truenas/ports/pull/1116

That's okay. I will get the fix into U7.1. There is an additional session close bug (use-after-free / race), which should address remaining crash reports I've seen, which will also be in U7.1.

Hi Andrew,

Thank you very much for your attachment for the fix... unfortunately, this is a production system, and I don't really have the time or spare hardware right now to test this in an alternate environment.  It is end of the year, and I have half my staff out due to you-know-what.

I think I'm just going to have to wait for it to make its way into the update, unless some time opens up.

In the meantime, hopefully someone else will be able to give this a shot.

Thanks again.

-Chris

https://drive.google.com/file/d/1FprHyS33MkHQmFjoSpTFy3Qn9AJv9i-1/view?usp=sharing

^^^ this should provide an update tar.gz file.

I believe it has fix for the issue, but I have been unable to reproduce it in my lab environment. Can you:

1) backup your boot environment
2) copy the file to the NAS
3) freenas-update <path/to/file>
4) verify that update is active on reboot via `beadm list`
5) reboot
6) try to reproduce issue

Assuming that you can reproduce on a test server (not your production NAS). If this isn't an option, then I'll just proceed with making merge request for 12.0-stable branch since it fixes the issues I was able to reproduce.

https://github.com/truenas/samba/pull/58