Bug 689435

Summary:	On ia64 Ghostscript does not work at all (immediate segfault)
Product:	Ghostscript	Reporter:	Till Kamppeter <till.kamppeter>
Component:	General	Assignee:	Default assignee <ghostpdl-bugs>
Status:	NOTIFIED INVALID
Severity:	blocker	CC:	ralph.giles
Priority:	P4
Version:	8.60
Hardware:	PC
OS:	Linux
URL:	https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/130842
Customer:		Word Size:	---

Description Till Kamppeter 2007-09-05 15:10:45 UTC

See Ubuntu bug report

https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/130842

Ghostscript works fine on 32-bit and on amd64, but on ia64 it crashes
immediately with a segfault, even simple calls like "gs" or "gs -h" crash.

gdb backtrace:

--------------------------------------------------------------------------------
...
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
--------------------------------------------------------------------------------

The impact is very high, as on ia64 it is impossible now to print on
non-PostScript printers and one cannot even build the complete distro, as many
packages use Ghostscript to build documentation.

Comment 1 Alex Cherepanov 2007-09-05 20:21:35 UTC

Probably, this is a problem with a particular distribution or even a
particular installation.

Ghostscript HEAD compiles and runs just fine on an Itanium box
provided by HP testdrive.

> uname -a
Linux td178.testdrive.hp.com 2.6.18-8.1.6.el5 #1 SMP Fri Jun 1 18:52:04 EDT 2007
ia64 ia64 ia64 GNU/Linux
> gcc --version
gcc (GCC) 4.1.1 20070105 (Red Hat 4.1.1-52)

Comment 2 Alex Cherepanov 2007-09-05 21:22:48 UTC

Works fine on a SUSE 10 box:

td187:~> uname -a
Linux td187 2.6.16.27-0.9-default #1 SMP Tue Feb 13 09:35:18 UTC 2007 ia64 ia64
ia64 GNU/Linux
td187:~> gcc --version
gcc (GCC) 4.1.0 (SUSE Linux)
td187:~> cat /proc/cpuinfo
processor  : 0
vendor     : GenuineIntel
arch       : IA-64
family     : Itanium 2
model      : 1
revision   : 5
archrev    : 0
features   : branchlong
cpu number : 0
cpu regs   : 4
cpu MHz    : 1400.000000
itc MHz    : 1400.000000
BogoMIPS   : 2097.15
siblings   : 1

Also works on FreeBSD:

td150.testdrive.hp.com> uname -a
FreeBSD td150.testdrive.hp.com 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Sat Jan 13
04:30:24 UTC 2007     root@pluto2.freebsd.org:/usr/obj/usr/src/sys/GENERIC  ia64
td150.testdrive.hp.com> gcc --version
gcc (GCC) 3.4.6 [FreeBSD] 20060305

I'm out of the orange smoke. Ghostscript works for me on ia64.

Comment 3 Till Kamppeter 2007-09-18 03:45:36 UTC

The problem was in the libpaper support patch of the Debian/Ubuntu packages
(missing "#include <paper.h>"). The problem does not affect the unpatched
Ghostscript.