Comment 23 for bug 7170

Message-ID: <email address hidden>
Date: Sun, 30 May 2004 17:09:24 -0400
From: Thomas Dickey <email address hidden>
To: Branden Robinson <email address hidden>
Cc: <email address hidden>
Subject: Re: Bug#250655: xterm: crashes on paste from abiword

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On Fri, May 28, 2004 at 10:27:16PM -0500, Branden Robinson wrote:

> Just as a remark to myself and my fellow "debian-x"ers, if it turns out
> the bug is in Xt, this bug should be reassigned to libxt6.

I can reproduce it with XFree86 4.3.0. The immediate cause of failure is
dererencing a null pointer but that part of the code and the intervening
functions on the walkback appear much the same in 4.4.0 - so I expect the
cause is one of the other functions called before that point.

Here's a walkback (it doesn't make any difference whether it's for xterm #1=
74
or xterm #190, so while it might ultimately be a bug in xterm, the differen=
ce
in behaviour - works with current X - is due to X libraries):

#0 0x40251a83 in _XlcResetConverter (conv=3D0x0) at lcConv.c:336
336 if (conv->methods->reset)
(gdb) where
#0 0x40251a83 in _XlcResetConverter (conv=3D0x0) at lcConv.c:336
#1 0x40258fd6 in _XTextPropertyToTextList (lcd=3D0x80b2b98, dpy=3D0x809872=
8,=20
    text_prop=3D0xbfffec00, to_type=3D0x402725c9 "utf8String",=20
    list_ret=3D0xbfffec1c, count_ret=3D0xbfffec18) at lcPrTxt.c:216
#2 0x4025915c in _Xutf8TextPropertyToTextList (lcd=3D0x80b2b98, dpy=3D0x80=
98728,=20
    text_prop=3D0xbfffec00, list_ret=3D0xbfffec1c, count_ret=3D0xbfffec18)
    at lcPrTxt.c:275
#3 0x40228589 in Xutf8TextPropertyToTextList (dpy=3D0x8098728,=20
    text_prop=3D0xbfffec00, list_ret=3D0xbfffec1c, count_ret=3D0xbfffec18)
    at lcWrap.c:420
#4 0x0804da1c in SelectionReceived (w=3D0x80bd268, client_data=3D0x8166e90=
,=20
    selection=3D0xbfffecb4, type=3D0xbfffec80, value=3D0x8167080, length=3D=
0xbfffec88,=20
    format=3D0xbfffec84) at button.c:1372
#5 0x401676d9 in HandleNormal (dpy=3D0x8098728, widget=3D0x80bd268, proper=
ty=3D453,=20
    info=3D0x8166fc0, closure=3D0x8166e90, selection=3D449) at Selection.c:=
1310
#6 0x40167b5f in HandleSelectionReplies (widget=3D0x80bd268, closure=3D0x8=
166fc0,=20
    ev=3D0xbfffee40, cont=3D0xbfffed6d "\001") at Selection.c:1408
#7 0x4014fdbe in XtDispatchEventToWidget (widget=3D0x80bd268, event=3D0xbf=
ffee40)
    at Event.c:956
#8 0x401508ce in _XtDefaultDispatcher (event=3D0xbfffee40) at Event.c:1417
#9 0x40150c93 in XtDispatchEvent (event=3D0xbfffee40) at Event.c:1497
#10 0x08064e62 in xevents () at misc.c:202
#11 0x08053e8e in in_put () at charproc.c:2751
#12 0x08051414 in VTparse () at charproc.c:910
#13 0x08056eda in VTRun () at charproc.c:4142
#14 0x0807957f in main (argc=3D0, argv=3D0xbffff180) at main.c:2222

--=20
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net

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