Package: tightvncserver
Version: 1.3.9-6.4
Severity: serious

Xvnc is broken on s390x (compiled with »-O0 -g«):

pkern@debian:~/tightvnc-1.3.9/Xvnc/programs/Xserver$ gdb ./Xvnc
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "s390x-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from 
/home/pkern/tightvnc-1.3.9/Xvnc/programs/Xserver/Xvnc...done.
(gdb) run :1
Starting program: /home/pkern/tightvnc-1.3.9/Xvnc/programs/Xserver/Xvnc :1
31/12/12 14:45:24 Xvnc version TightVNC-1.3.9
31/12/12 14:45:24 Copyright (C) 2000-2007 TightVNC Group
31/12/12 14:45:24 Copyright (C) 1999 AT&T Laboratories Cambridge
31/12/12 14:45:24 All Rights Reserved.
31/12/12 14:45:24 See http://www.tightvnc.com/ for information on TightVNC
31/12/12 14:45:24 Desktop name 'x11' (debian:1)
31/12/12 14:45:24 Protocol versions supported: 3.3, 3.7, 3.8, 3.7t, 3.8t
31/12/12 14:45:24 Listening for VNC connections on TCP port 5901
Font directory '/usr/share/fonts/X11/Speedo/' not found - ignoring
Font directory '/usr/share/fonts/X11/Type1/' not found - ignoring
Font directory '/usr/share/fonts/X11/75dpi/' not found - ignoring
Font directory '/usr/share/fonts/X11/100dpi/' not found - ignoring

Program received signal SIGSEGV, Segmentation fault.
0x000000008013c48e in cfbCopyPlane1to8 (pSrcDrawable=0x802ccf30, 
pDstDrawable=0x802c01c0, rop=3, prgnDst=0x3ffffffeee8, pptSrc=0x3ffffffeeb4, 
planemask=18446744073709551615, 
    bitPlane=1) at cfbbitblt.c:651
651                             *pdst = RRopPixels (*pdst, src);
(gdb) bt full
#0  0x000000008013c48e in cfbCopyPlane1to8 (pSrcDrawable=0x802ccf30, 
pDstDrawable=0x802c01c0, rop=3, prgnDst=0x3ffffffeee8, pptSrc=0x3ffffffeeb4, 
    planemask=18446744073709551615, bitPlane=1) at cfbbitblt.c:651
        srcx = 0
        srcy = 0
        dstx = 0
        dsty = 0
        width = 4
        height = 3
        xoffSrc = 0
        xoffDst = 0
        psrcBase = 0x3fffffff270
        pdstBase = 0x802c0200
        widthSrc = 0
        widthDst = 0
        psrcLine = 0x3fffffff270
        pdstLine = 0x802c0200
        psrc = 0x3fffffff278
        pdst = 0x802c0200
        bits = 1229782939106296900
        tmp = 1229782939106296900
        leftShift = 0
        rightShift = 32
        startmask = 0
        endmask = 0
        nlMiddle = 1
        nl = 0
        firstoff = -4800
        secondoff = 1023
        src = 4581298452
        nbox = 0
        pbox = 0x3ffffffeef0
        pixelsRemainingOnRightEdge = 4
#1  0x000000008013b470 in cfbBitBlt (pSrcDrawable=0x802ccf30, 
pDstDrawable=0x802c01c0, pGC=0x802b9d30, srcx=0, srcy=0, width=4, height=4, 
dstx=0, dsty=0, 
    doBitBlt=0x8013b7e4 <cfbCopyPlane1to8>, bitPlane=1) at cfbbitblt.c:278
        prgnSrcClip = 0x10
        freeSrcClip = 0
        prgnExposed = 0x1
        rgnDst = {extents = {x1 = 0, y1 = 0, x2 = 4, y2 = 4}, data = 0x0}
        pptSrc = 0x3ffffffeeb0
        ppt = 0x3ffffffeeb4
        pbox = 0x3ffffffeef0
        i = -1
        dx = 0
        dy = -4432
---Type <return> to continue, or q <return> to quit---   
        origSource = {x = 0, y = 0, width = 4, height = 4}
        origDest = {x = 0, y = 0}
        numRects = 1
        fastBox = {x1 = 0, y1 = 0, x2 = 4, y2 = 4}
        fastClip = 1
        fastExpose = 1
#2  0x000000008013c784 in cfbCopyPlane (pSrcDrawable=0x802ccf30, 
pDstDrawable=0x802c01c0, pGC=0x802b9d30, srcx=0, srcy=0, width=4, height=4, 
dstx=0, dsty=0, bitPlane=1)
    at cfbbitblt.c:695
        ret = 0x802ccf30
        doBitBlt = 0x8013b7e4 <cfbCopyPlane1to8>
#3  0x000000008013a4be in cfbPutImage (pDraw=0x802c01c0, pGC=0x802b9d30, 
depth=1, x=0, y=0, w=4, h=4, leftPad=0, format=0, 
    pImage=0x3fffffff270 "\021\021\021\021DDDD\"\"\"\"\210\210\210\210") at 
cfbimage.c:87
        pPixmap = 0x802ccf30
#4  0x000000008002a8be in MakeRootTile (pWin=0x802b9f70) at window.c:314
        pScreen = 0x802b7980
        pGC = 0x802b9d30
        back = 
"\021\021\021\021DDDD\"\"\"\"\210\210\210\210\000\000\000\000\200,\243\240\000\000\000\000\200,\243\240\000\000\000\000\200,\316\360\000\000\000\000\000\000\000\005\000\000\000\000\000\000\000(",
 '\000' <repeats 12 times>"\200, 
\002\242\274\000\000\003\377\377\377\362@\000\000\000\000\000\000\000\005\000\000\000\000\000\000\000\037\000\000\000\000\000\000\000&\000\000\000\000\200+\\\320",
 '\000' <repeats 15 times>
        len = 4
        from = 0x8027c1dc ""
        to = 0x3fffffff280 ""
        i = 0
        j = 0
#5  0x000000008002b026 in InitRootWindow (pWin=0x802b9f70) at window.c:477
        pScreen = 0x802b7980
#6  0x00000000800273d8 in main (argc=2, argv=0x3fffffff6b8) at main.c:394
        i = 0
        j = 2
        k = 2
        alwaysCheckForInput = {0, 1}

I guess for wheezy this would mean that it should be removed from s390x,
given that this package does seem to be maintained through NMUs and hence
there's probably no one who would go and forward and/or debug this.

I didn't find any patches over in the RPM world at first glance, but then
I utterly failed to find any SRPMs anyway.

Kind regards
Philipp Kern


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