IND$FILE broken on fresh sysgen. Crashes TSO when DFT buffer at default.

[meltdown03]

Anytime I try to transfer from c3270 or x3270 to my system when using the default DFT buffer size of 16384 (or anything over 4096), I get a terminal bell and get kicked out to the TSO logon screen. The download always gets about one buffer size before it happens. I am then forced to cancel the user. It only works with a DFT buffer size of 4096.

If I hit page up i see 5C in the upper left of the screen, one more page up and its the IND$FILE command at the tso prompt.
The Tk5 system I tried it with uses the same version of IND$FILE and works with higher buffer sizes so maybe it's a configuration difference I can tweak.

[meltdown03]

I figured out what to do to fix it. In the file SYS1.VTAMLST(ATCSTR00), I edited IOBUF buffers and it works now, here's what the new file has:

CONFIG=00,                         /*CONFIG LIST SUFFIX              */+
SSCPID=01,                         /*THIS VTAMS ID IN NETWORK        */+
NETSOL=YES,                        /*NETWORK SOLICITOR OPTION        */+
MAXSUBA=31,                        /*MAXIMUM SUBAREAS IN NETWORK     */+
NOPROMPT,                          /*OPERATOR PROMPT OPTION          */+
SUPP=NOSUP,                        /*MESSAGE SUPPRESSION OPTION      */+
COLD,                              /*RESTART OPTION   - COLD/WARM    */+
APBUF=(192,,128),                  /*ACE STORAGE POOL                */+
CRPLBUF=(281,,181),                /*RPL COPY POOL                   */+
IOBUF=(50,3992,40,F),              /*FIXED IO (GP-5/2009)            */+
LFBUF=(32,,32,F),                  /*LARGE FIXED BUFFER POOL         */+
LPBUF=(146,,146),                  /*LARGE PAGEBLE BUFFER POOL       */+
NPBUF=(134,,70,F),                 /*NON WS FMCB                     */+
PPBUF=(20,3992,10,F),              /*PAGEBLE IO (GP-5/2009)          */+
SFBUF=(140,,76,F),                 /*SMALL FIXED BUFFER POOL         */+
SPBUF=(032,,32,F),                 /*SMALL PGBL BUFFER POOL          */+
UECBUF=(128,,108,F),               /*USER EXIT CB                    */+
WPBUF=(64,,64,F)                   /*MESSAGE CONTROL BUFFER POOL     */