[ia64] Ghostscript always crashes immediately on ia64, causing several build failures

confirmed on the buildds, setting to high, although its a community architecture

Can you post some test Postscript files on which 64-bit ps2pdf crashes? And can you reproduce the crash on a Ubuntu desktop machine to trigger Apport, so that we can get a backtrace (and than mark the report of apport as a duplicate of this bug). Then I will make an upstream bug report.

Moving milestone.

I cannot reproduce this bug. I tried it by rebuilding the snort package on a system with the current Ghostscript installed. The build simply works for me.

Matthias, can you attach some Postscript files on which ps2pdf segfaults? Otherwise I cannot do anything here.

Some additional observations:

- This problem does not occur with amd64 (x86_64), only with ia64.

- On ia64 Ghostscript does not work at all, calls like "gs" or "gs -h" already segfault.

Doko has given me access to an ia64 box (I have only amd64) and I could reproduce the bug.

Upstream is informed about the problem.

Here is a gdb backtrace, generated on doko's ia64 box:

--------------------------------------------------------------------------------
...
Program terminated with signal 11, Segmentation fault.
#0 0x200000000178b000 in strncat () from /lib/libc.so.6.1
(gdb) bt
#0 0x200000000178b000 in strncat () from /lib/libc.so.6.1
#1 0x20000000003b8b50 in gs_main_init_with_args (minst=0x6000000000004230, argc=1,
    argv=0x60000fffff01fa58) at ./src/imainarg.c:214
--------------------------------------------------------------------------------
.

I cannot reproduce this problem on 3 ia64 boxes provided by HP testdrive: Red Hat 5, SUSE 10, FreeBSD. Ghostscript compiles and works just fine.
To fix this problem I need to access a box where it can be reproduced.
My public ssh key is available at http://www.ghostscript.com/~alexcher/alexcher.pub

Alex: did you only try the default build? It's perhaps not clear, but the issue is with the Ubuntu package, which uses a (patched) so build.

Till provides the following instructions:

apt-get source ghostscript

to download the source package of Ghostscript.

Then enter the package source directory

cd ghostscript-8.60*

See the patches in debian/patches/ build instructions in debian/rules
and the build via

dpkg-buildpackage -rfakeroot

Allow core dumping with

ulimit -c 999999999999

Then execute the program with

LD_LIBRARY_PATH=./sobin/ sobin/gsx
and start the debugger with

LD_LIBRARY_PATH=./sobin/ gdb -c core sobin/gsx

Under Ubuntu Ghostscript is built for maximum flexibility. The
./configure command line is:

LDFLAGS="-lpaper" ./configure --prefix=/usr --mandir=/usr/share/man \
        --infodir=/usr/share/info \
        --with-ijs --with-jbig2dec --with-jasper --with-x \
        --disable-gtk \
        --enable-dynamic --with-omni --enable-cups \
        --disable-compile-inits \
        --with-drivers=ALL \
--with-fontpath=/var/lib/defoma/gs.d/dirs/fonts:/usr/share/cups/fonts:/usr/share
+/ghostscript/fonts:/usr/local/lib/ghostscript/fonts:/usr/share/font

Note that for our package to build we do not use a simple "make" after
"./configure" but

make so
make obj/X11.so

Moving milestone to beta.

The problem is that 06_libpaper_support.dpatch calls systempapersize() from libpaper without including paper.h. The return value is then read as an int instead of a pointer, which apparently doesn't work on ia64.

I've attached an updated patch. Please verify and update the package as appropriate.

Thank you for the fix, I will make a new Ubuntu package of Ghostscript soon.

Doko, thanks for the test accounts, these made us really able to fix this bug.

Here are new Ghostscript packages for testing

http://www.linux-foundation.org/~till/tmp/ubuntu/gutsy/ghostscript/

They will soon appear in Gutsy.

ghostscript (8.61.dfsg.1~svn8187-0ubuntu2) gutsy; urgency=low

  * debian/patches/06_libpaper_support.dpatch: Added missing
    "#include <paper.h>", this made Ghostscript not working at all
    on IA64 (Fixes LP: #130842, thanks to Ralph Giles from ghostscript.com
    for the fix and to Matthias Klose for the IA64 test machine).
  * debian/ghostscript.links: Bumped version number in link for CJK fonts
    (Fixes LP: #139911).

 -- Till Kamppeter <email address hidden> Tue, 18 Sep 2007 10:00:58 +0100