Re: LYNX-DEV color-styles memory leak?

[T.E.Dickey]

perhaps this is a bug in ncurses 4.1 (fixed since then, by checking for
illegal parameters): I built lynx #98 today twice, first with the 4.1
version, and then with the 971206 version, to compare.  Purify reports
a problem with uninitialized variables in the case with 4.1's color
code, but not with the current version (it also seems familiar; so I
think this was a bug-fix).  However, it didn't crash for me.  (The
latter case also has an uninitialized variable related to gethostbyname,
but this is on Solaris, so I'm used to _that_).
 
Suggest you try with a currently-patched ncurses 4.1 (I did a rollup
patch a couple of weeks ago, which would simplify that).

> I figured I should get this report in before the 2.8 release.  What's
> happening is that, with no apparent pattern, Lynx will die with a SIGBUS or
> SIGKILL (at least I'm assuming that's what "Killed" means in Linux) while
> loading or just before displaying a page.  It seems to happen more often
> after I've been using Lynx for a while, which is why I suspect a memory
> leak.
> 
> Here are some specifics:  Lynx 2.7.1ac93 (I'm downloading ac98, but there's
> nothing in the CHANGES file about the color style code, so I suspect the
> bug is still there) on Linux 2.0.27, compiled with --enable-color-styles,
> --with-screen=ncurses and --enable-debug, seems to consistenly fail when
> loading <URL:http://www.xmission.com/~jlwright/yearofhell2.html>, with the
> message "Killed".  The Lynx.leaks file reads:
> 
> ----------
> Memory leak detected.
> Pointer:      0x8148fd8
> Contains:     /tmp/|
> ByteSize:     6
> FileName:     ./LYMain.c
> LineCount:    672
> 
> 
> Total memory leakage this run:        6
> ----------
> which, unfortunately, seems to be singularly uninformative.  The Lynx.trace
> file is, of course, rather large (~300K); I can make it available for
> download if necessary.  I can't get Lynx to produce a core file for some
> reason, with or without the -core option.
> 
> An otherwise identical Lynx executable built without --enable-debug will
> successfully load this document, but consistently dies while subsequently
> loading <URL:http://www.xmission.com/~jlwright/yearofhell1.html>.  An
> otherwise identical executable built without --enable-debug and
> --enable-color-styles loads this page (and several others that have crashed
> on me) without incident.
> 
> Yeah, I know, not much to go on.  If I can provide any further relevant
> information, let me know.
> 
>                                               -sbigham
> 


-- 
Thomas E. Dickey
address@hidden
http://www.clark.net/pub/dickey