On Wed, 15 Feb 2023 14:06:15 -0800, Michael Stein wrote: > ... >This used to be documented, see page 26 of GC28-0683-3 OS/VS2 MVS >Supervisor Services and Macro Instructions which says: > > If the module is serially reusable, only one copy is ever placed > in the job pack area; this copy is always used for a LOAD macro > instruction. If the copy is in use, however, and the request is made > using a LINK, AITACH, or XCTL macro instruction, the task requiring the > load module is placed in a wait condition until the copy is available. > >https://archive.org/details/bitsavers_ibm370OSVS06833OSVS2MVSSupervisorServicesandMacros_11233168 > Is there an hazard deadlock if two serially reusable modules are concurrently active and each LINKs to the other? To avoid this, should one be made not reusable?
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