How to enable logging for smbd on macOS?

I would like to enable logging on my file sharing service. (It's crashing intermittently and I can't figure out why.) When I inspect the plist for the file sharing service **smbd** on my Mac running Mojave, I see: user@mac:~ $ plutil -p /Library/Preferences/SystemConfiguration/com.apple.smb.server.plist { "AclsEnabled" => 1 "DOSCodePage" => "437" "LocalKerberosRealm" => "LKDC:SHA1..." "LogLevel" => 0 "NetBIOSName" => "transom" "ServerDescription" => "Transom" "SigningRequired" => 0 } So, it looks like logging is configured with the parameter "LogLevel". I've read the smbd man page, and it's not much help, with this parameter. - What are the allowed log levels? - Which level is best for debugging **smbd** crashes? - What's the preferred method for tweaking a value? (plutil can set, or...)