At 17:19 -0400 on 05/04/2006, (IBM Mainframe Discussion List) wrote
about Re: LINKLST into EXTENTS:
And what does LLA do when the directory entry's TTR points to a new location
that is beyond the end of the last extent which existed at the time the
library was added to the linklist set?
It will save the pointer to an extent that in not in the DEB. Any
attempt to access that module will lead to an ABEND due to the bad
TTR (either because it spotted the attempt to reference a
non-existent extent or due to resolving into a location in extent 1
of the next PDS/PDSE - If the latter, you will probably be pointing
into the middle of a load module). BIG GOTCHA WARNING - IF the
extension of the PDS makes the new extent look like it maps to extent
1 of the next file in the concatenation then ANY attempt to access
not only files in the new extent but ANY file in subsequent PDS Files
will x06 ABEND since the TTR will point to the wrong location due to
the use of the old DEB (which does not show the new extent).
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