After I installed RH 6.0(.1?) and Samba-2.0.3, I ran "smbstatus"(or anything like that), I got an error message like "cannot open lock file /var/lock/samba/FILE..LOCK" (sorry I forgot the file name). It exit. I don't know if this bug is serious or not. At least it doesn't run.
Confirmed in test lab. The message is as follows: "Couldn't open status file /var/lock/samba/STATUS..LCK"
Looks like %attr(1777,-,-) /var/lock/samba should be in the spec file.
The files that smbstatus needs won't be created until the first connection is made.