SEGV when exercising code at bottom of processing table

[John Esak]

You are thinking it is because it is low in the prc table. I've seen this,
too.  What would happen if you copy the code to line 1 of the table and
redirect it to be run from there.  Would the error happen?
John

> -----Original Message-----
> From: filepro-list-bounces+john=valar.com at lists.celestial.com 
> [mailto:filepro-list-bounces+john=valar.com at lists.celestial.co
m] On Behalf Of Barry Wiseman
> Sent: Friday, February 05, 2010 1:34 PM
> To: Filepro_List
> Subject: SEGV when exercising code at bottom of processing table
> 
> fP 5.0.15 on linux
> 
> We have an input processing table which is currently 5886 
> lines of code.  (The associated automatic table is 6845 
> lines.)   Several chunks of code near the end of the table 
> are throwing SEGV's when called at runtime.  Moving these 
> code blocks higher in the table constitutes a workaround.
> 
> The simplest example is:
> 
> 	@key4:::
> 	:@sn eq "4":switchto "4t"  ; end:
> 	::switchto 4     ; end:
> 
> With this code block located at line 5861, pressing "4" from 
> a record generates a segmentation fault.  When I move this 
> three-line block above the short subroutine which precedes it 
> in the table -- so that it is now located at line 5852 -- the 
> @key4 executes without a problem.
> 
> Another example, a short subroutine
> 
> 	ttype:::
> 	:18 eq ""  or  18 eq "SPOT":return:
> 	::lookup typ = gottype  k=18   i=A -nx:
> 	:not typ:return:
> 	:typ(21) eq "Y":ltagtype = "LTL":
> 	::return:
> 
> which works fine when located above line 5856, SEGV's when 
> lower in the table, or, when at the very bottom, generates:
> 
> 	FATAL ERROR!
> 	
> 	Invalid opcode 254 in token table.
> 	Line 5881, offset 1.
> 
> Any ideas what the issue could be here?  We have other 
> similar versions of this table which are larger (more lines) 
> but do not produce these errors.
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