Record limit in REUSE_ALV_GRID_DISPLAY

Question

I have a ALV report program that displays an internal table with about 5000 records. When the user either selects 1-n lines on the ALV screen (or none at all) and then clicks a Details button I fill another internal table with the details that I want to display on the next screen.
The problem I am running into is that the 2nd internal table has 100K+ records but when trying to execute the REUSE_ALV_GRID_DISPLAY fm I get a program abend telling me that "No storage space available for extending table IT_84403".
I have to assume that ALV has a limitation as to the number of records that can be displayed. I checked the ALV documentation in the R/3 Library but did not find any information as to how much data (or number of records) can be displayed in an ALV.
Is the limitation just the number of records or the total memory used (i.e. number of records * record length)? Knowing that I could monitor for the table size and maybe allow the details table to be displayed page by page (just a thought).
Thanks for any comments.
Gerd

Answer 1

Ok,  I just tested it, I am getting the same error when filling up an internal table without going to ALV grid.
Here is the code.
* Internal Tables
data: itab type table of mara with header line.
data: itab2 type table of mara.
  select * into table itab
            from mara
                 where matnr in s_matnr
                   and mtart in s_mtart.
  do 20 times.
    loop at itab.
      append itab to itab2.
    endloop.
  enddo.
That said,  I have to say that the problem is definitly not because the ALV grid can't handle it, but the system itself can't handle it.
Regards,
Rich Heilman