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Re: lynx-dev Lynx Error

From: dickey
Subject: Re: lynx-dev Lynx Error
Date: Sun, 25 Oct 1998 17:11:29 -0500 (EST)

> Since we initially installed and compiled Lynx V2.7, we've upgraded Open 
> VAX/VMS to V7.1, DEC C to V5.7 and Multinet to V4.1 
> We had been running Lynx V2.7 for sometime with no problem. We recently 
> upgraded DEC C and during recompilation of Lynx I get the following warning 
> messages for most of the modules: 
the compiler warning is harmless (but annoying).  I have a _TEMPORARY_
account which I used to verify the build for lynx and some other programs
which I plan to submit for updates on the VMS freeware cdrom.  Lynx works
just fine (for me).

The access violation appears to be a null-pointer reference.  I read
through the relevant code, but don't see the hole.  To figure out what it
is, I would do this:  modify the .com files to add "/listing" option to the
compiler options and rebuild the WWW library.  That gives a nice (large)
listing file with the line numbers that the walkback refers to.  Given the
line numbers related to the actual code, 9/10 times we can see the problem
right away.

> ------------------------------------------------------------------------------
> $ cc DefaultStyle 
>         #define __TIME_T 1 
>         .................^ 
> %CC-W-MACROREDEF, The redefinition of the macro "__TIME_T" conflicts with a 
>  current definition because the replacement lists differ.  The redefinition 
> is 
>  now in effect. 
>                 At line number 319 in 
> ------------------------------------------------------------------------------
> Lynx does recompile but during execution pressing the "H" key will produce 
> the 
> following stack dump. Using the older version of the executeable runs fine.!? 
> ------------------------------------------------------------------------------
> Getting file://localhost/disk3/internet/lynx/lynx_help/lynx_help_main.html 
> %SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual address=00000000, 
> PC 
> =000924E1, PSL=03C00000G)o M)ain screen Q)uit /=search [delete]=history list 
> %TRACE-F-TRACEBACK, symbolic stack dump follows 
> module name     routine name                     line       rel PC    abs PC 
> HTVMSUTILS      HTStat                          19948      0000000D  000924E1 
> HTFILE          HTLoadFile                      13456      00000137  00078697 
> HTACCESS        HTLoadDocument                  12881      00000284  000843A8 
> HTACCESS        HTLoadAbsolute                  13048      0000004C  00084794 
> LYGETFILE       getfile                         19415      00000AD5  00045AA5 
> LYMAINLOOP      mainloop                        21613      0000046D  00054CD5 
> LYMAIN          main                            21216      00001207  0005085B 
> SHELL$MATCH_WIL SHELL$MATCH_WILD                           0000010B  000B5C7B 
> A Fatal error has occured in Lynx Ver. 2.7 
> Please notify your system administrator to confirm a bug, and if 
> confirmed, to notify the lynx-dev list.  Bug reports should have concise 
> descriptions of the command and/or URL which causes the problem, the 
> operating system name with version number, the TCPIP implementation, the 
> TRACEBACK if it can be captured, and any other relevant information. 
> Press RETURN to clean up: 
> ------------------------------------------------------------------------------
> I've tried V2.8 of Lynx and receive the same thing. I've been able to get the 
> help to work ONLY by defineing the HELPFILE as an HTTP address. 
> Any help you can give us will be greatly appreciated. 
> Todd Lupien 
> Senior Programmer/Analyst 
> New Mexico Military Institute 

Thomas E. Dickey

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