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From: jb@rti.UUCP (Jeff Bartlett)
Newsgroups: comp.lang.ada
Subject: Re: Limitation of the DEC Ada compiler ?
Message-ID: <2185@rti.UUCP>
Date: 15 Apr 88 01:18:53 GMT
References: <8804080846.AA04719@ajpo.sei.cmu.edu>
Organization: Research Triangle Institute, RTP, NC
Summary: Possible solution
List-Id: <comp.lang.ada>

In article <8804080846.AA04719@ajpo.sei.cmu.edu>,
					DSADABB@dsavx1.sdr.slb.COM writes:
...
] ...  with a crash of the DEC Ada compiler. The crash occurs in the 
] routine SI_INST_BODY_BODY at line 1125 of the Ada compiler (Micro-VAX 2  
] running VMS 4.7 in LAVC with ADA V1.4-33) 
 
] $ ADA/DEBUG/NOOP/LIST MY_PROCEDURE.ADA
 
] %SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual address=000000E7,
] PC=0013AD67, PSL=03C00000
] %TRACE-E-TRACEBACK, symbolic stack dump follows
] module name     routine name                     line       rel PC    abs PC
                                                             001DC7B2  001DC7B2
] ----- above condition handler called with exception 0000000C:
] %SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual address=000000E7, 
] PC=0013AD67, PSL=03C00000
] ----- end of exception message
] SIINST          SI_INST_BODY_BODY                1125      000000FB  0013AD67
] DSPUTIL         DSPR__INSTANTIATE                1759      000000A7  00172E1D
   .....
 
]     1 	with TEXT_IO;
] %ADAC-F-SUBMITSPR, Internal Ada compiler error -- please submit a Software 
]         Performance Report (SPR)
  ...

I encountered something similar to this while trying to compile a 2300 block
machine generated package.  The compile would run for about 30 mins on uVAX2
an would die in a like fashion.   It seemed that the compiler could not
quite recover when the process virtual space was exhasted.

Take a look at your account's 'paging file quota', the system's SYSGEN
parameter VIRTUALPAGECNT, and the size of the PAGEFILE.  ( I had to bump
VIRTUALPAGECNT upto around 58,000 :-).   This was DecAda v1.3

P.S. turning up VIRTUALPAGECNT may require more GBLSECTIONS since process
	pagetables will grow.  (i think that right?)

> 
> Philippe JAMET       jamet%m_dsavx1@sdr.slb.com
> Etudes et Fabrication DOWELL-SCHLUMBERGER       
> Z.I. de Molina la Chazotte    B.P. 90           
> 42003 Saint-Etienne CEDEX 1                     
> FRANCE                            

Jeff Bartlett
Center for Digital Systems Research
Research Triangle Institute
jb@rti.rti.org		mcnc!rti!jb