I will not comment on Mr. Perryman's suspicions, which are not arguments. I will limit myself to noting that 1) an SRB cannot attach a subtask and 2) a [different] SRB that it scheduled into another address space would also disabled for I/O.
Peter Relson's point is the important one here. The use of these facilities by the unwashed certainly has great potential for bringing down z/OS. The security threat posed by an SRB executed on a cheap zIIP, zAAP, or the like is not, however, any greater in any way than the security threat of an SRB executed on an expensive standard CP. As Lewis Carroll put it in THOTS: Just the place for a Snark! I have said it twice: That alone should encourage the crew. Just the place for a Snark! I have said it thrice: What I tell you three times is true. --John Gilmore, Ashland, MA 01721 - USA ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
