xsane chrashes before scanning

[Risto Mononen]

Binary package hint: xsane

Printer is HP PSC 1315.
Latest hplip is installed.
The problem can be re-produced with other scanning applications, e.g. scanimage and hp-scan --> possibly a driver problem? All applications report the same assertion problem when run with catchsegv (full catchsegv output attached).

Inconsistency detected by ld.so: dl-open.c: 222: dl_open_worker: Assertion `_dl_debug_initialize (0, args->nsid)->r_state == RT_CONSISTENT' failed!

SW versions:
/tmp$ scanimage -V
scanimage (sane-backends) 1.0.21; backend version 1.0.21
/tmp$ hp-scan -v
HP Linux Imaging and Printing System (ver. 3.10.9)
Scan Utility ver. 2.2

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xsane 0.997-2ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic i686
Architecture: i386
CheckboxSubmission: de4705189f36ed9f6c7864faf149fb86
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
Date: Sat Dec 18 16:43:06 2010
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: xsane

[Risto Mononen (risto-mononen-deactivatedaccount)]

Stack and register info from gdb, without symbols.

[Risto Mononen (risto-mononen-deactivatedaccount)]

GDB info with debug symbols attached. I could not find dl-deps.c source file. There is dll.c and load() seems to be the problem.

./sane-backends-1.0.21/backend/dll.c

(gdb) backtrace full
#0 _dl_map_object_deps (map=<value optimised out>, preloads=<value optimised out>, npreloads=<value optimised out>, trace_mode=0, open_mode=-2147483648) at dl-deps.c:224
  ...
#8 0x00132886 in load (be=0x814a398) at dll.c:497
  ...

(gdb) info registers
eax 0x0 0
ecx 0x1a9cef4 27905780
edx 0x80000000 -2147483648

  ...

(gdb) x/16i $pc
=> 0x11cb19 <_dl_map_object_deps+297>: mov 0x4(%eax),%eax
   0x11cb1c <_dl_map_object_deps+300>: mov %edx,-0x28(%ebp)
   0x11cb1f <_dl_map_object_deps+303>: mov %edi,-0x30(%ebp)

  ...

Thread 1 (Thread 0xb7fda820 (LWP 29499)):
#0 _dl_map_object_deps (map=<value optimised out>, preloads=<value optimised out>, npreloads=<value optimised out>, trace_mode=0, open_mode=-2147483648) at dl-deps.c:224
#1 0x00122606 in dl_open_worker (a=0xbfffb830) at dl-open.c:263
#2 0x0011e266 in _dl_catch_error (objname=<value optimised out>, errstring=<value optimised out>, mallocedp=<value optimised out>, operate=0x122470 <dl_open_worker>, args=0xbfffb830) at dl-error.c:178
#3 0x00122046 in _dl_open (file=0xbfffba7c "/usr/lib/sane/libsane-v4l.so.1", mode=<value optimised out>, caller_dlopen=0x132886, nsid=-2, argc=1, argv=0xbffff414, env=0xbffff41c) at dl-open.c:555
#4 0x00dd6c0b in dlopen_doit (a=0xbfffba10) at dlopen.c:67
#5 0x0011e266 in _dl_catch_error (objname=<value optimised out>, errstring=<value optimised out>, mallocedp=<value optimised out>, operate=0xdd6b70 <dlopen_doit>, args=0xbfffba10) at dl-error.c:178
#6 0x00dd709c in _dlerror_run (operate=<value optimised out>, args=<value optimised out>) at dlerror.c:164
#7 0x00dd6b41 in __dlopen (file=0xbfffba7c "/usr/lib/sane/libsane-v4l.so.1", mode=1) at dlopen.c:88
#8 0x00132886 in load (be=0x814a398) at dll.c:497
#9 0x00132b00 in init (be=0x0) at dll.c:606
#10 0x00132e57 in sane_dll_get_devices (device_list=0x80eab88, local_only=0) at dll.c:1034
#11 0x00130984 in sane_get_devices (dl=0x80eab88, local=0) at dll-s.c:17
#12 0x080cc39d in xsane_init (argc=1, argv=0xbffff414) at xsane.c:5930
#13 0x080cc539 in xsane_interface (argc=1, argv=0xbffff414) at xsane.c:5993
#14 0x080cccb2 in main (argc=1, argv=0xbffff414) at xsane.c:6238
(gdb) quit
A debugging session is active.

[Risto Mononen (risto-mononen-deactivatedaccount)]

Scanning works after updating to Ubuntu 11.04 (Natty). Probably an incorrect config file somewhere.

[Launchpad Janitor (janitor)]

[Expired for xsane (Ubuntu) because there has been no activity for 60 days.]

[Risto Mononen (risto-mononen-deactivatedaccount)]

Now xsane works in ubuntu 11.04. The crash was probably likelidue to config error, missing library or driver, or something like.