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segfault in import

https://imagemagick.com/discourse-server/viewtopic.php?t=12819

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Re: segfault in import

Posted: 2008-12-29T14:05:35-07:00
by magick
We suspect this patch to magick/xwindow.c fixes the fault:

Code: Select all

*** 3482,3489 ****
    resource_value=XGetResourceClass(database,client_name,"gammaCorrect",
      (char *) "True");
    resource_info->gamma_correct=IsMagickTrue(resource_value);
!   resource_info->image_geometry=ConstantString(XGetResourceClass(database,
!     client_name,"geometry",(char *) NULL));
    resource_value=XGetResourceClass(database,client_name,"gravity",
      (char *) "Center");
    resource_info->gravity=(GravityType) ParseMagickOption(MagickGravityOptions,
--- 3482,3489 ----
    resource_value=XGetResourceClass(database,client_name,"gammaCorrect",
      (char *) "True");
    resource_info->gamma_correct=IsMagickTrue(resource_value);
!   resource_info->image_geometry=XGetResourceClass(database,client_name,
!     "geometry",(char *) NULL);
    resource_value=XGetResourceClass(database,client_name,"gravity",
      (char *) "Center");
    resource_info->gravity=(GravityType) ParseMagickOption(MagickGravityOptions,
***************
*** 3504,3511 ****
      (char *) NULL);
    resource_info->matte_color=XGetResourceInstance(database,client_name,
      "mattecolor",(char *) NULL);
!   resource_info->name=ConstantString(XGetResourceClass(database,client_name,
!     "name",(char *) NULL));
    resource_info->pen_colors[0]=XGetResourceClass(database,client_name,"pen1",
      (char *) "black");
    resource_info->pen_colors[1]=XGetResourceClass(database,client_name,"pen2",
--- 3504,3511 ----
      (char *) NULL);
    resource_info->matte_color=XGetResourceInstance(database,client_name,
      "mattecolor",(char *) NULL);
!   resource_info->name=XGetResourceClass(database,client_name,"name",
!     (char *) NULL);
    resource_info->pen_colors[0]=XGetResourceClass(database,client_name,"pen1",
      (char *) "black");
    resource_info->pen_colors[1]=XGetResourceClass(database,client_name,"pen2",

Re: segfault in import

Posted: 2008-12-30T09:07:32-07:00
by 3f719
I tried your patch(then make clean; make), but I still get the same segfault.



gdb ./utilities/.libs/import
GNU gdb 6.8-debian
Copyright (C) 2008 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 "x86_64-linux-gnu"...
(gdb) run
Starting program: /home/avova/myhome/downloads/ImageMagick-6.4.8-2/utilities/.libs/import
[Thread debugging using libthread_db enabled]
[New Thread 0x7f471278f720 (LWP 9740)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f471278f720 (LWP 9740)]
0x00007f470fc44a23 in free () from /lib/libc.so.6
(gdb) bt
#0 0x00007f470fc44a23 in free () from /lib/libc.so.6
#1 0x00007f471226235f in RelinquishMagickMemory ()
from /usr/lib/libMagickCore.so.1
#2 0x00007f47122e5fd5 in XDestroyResourceInfo ()
from /usr/lib/libMagickCore.so.1
#3 0x00007f4711eee3ff in ImportImageCommand ()
from /usr/lib/libMagickWand.so.1
#4 0x0000000000400e0c in main (argc=1, argv=0x7fff1a7b5e98)
at utilities/import.c:122
(gdb)

Re: segfault in import

Posted: 2008-12-30T09:38:01-07:00
by magick
The backtrace looks like you are attempting to run a new version of the ImageMagick import program but loading an older ImageMagick MagickCore library in /usr/lib. Try this command and see if it makes a difference
  • cd ImageMagick-6.4.8-3
    utilities/import -window root image.png
That command should pick up the patched library code in the ImageMagick-6.4.8-3 folder.

Re: segfault in import

Posted: 2008-12-30T09:54:26-07:00
by 3f719
cd ImageMagick-6.4.8-2/
avova@t61:ImageMagick-6.4.8-2$ utilities/import -window root image.png
Segmentation fault

Re: segfault in import

Posted: 2008-12-30T10:49:05-07:00
by 3f719
Here is what I did:

1) removed all imagemagick related packages from my machine
2) ./configure; make clean ; make; make install (with your patch)
3) when running "import" I get:
import
import: error while loading shared libraries: libMagickCore.so.1: cannot open shared object file: No such file or directory
so ln -s /usr/local/lib/libMagickCore.so.1 /usr/lib/libMagickCore.so.1
(I guess there is a bug somewhere in the configure script?)
4)
import
import: error while loading shared libraries: libMagickWand.so.1: cannot open shared object file: No such file or directory
so ln -s /usr/local/lib/libMagickWand.so.1 /usr/lib/libMagickWand.so.1 as root...

5) Still segfault, but it looks slightly different now:
gdb import
GNU gdb 6.8-debian
Copyright (C) 2008 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 "x86_64-linux-gnu"...
(gdb) run
Starting program: /usr/local/bin/import
[Thread debugging using libthread_db enabled]
[New Thread 0x7f7324ad4720 (LWP 8137)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f7324ad4720 (LWP 8137)]
0x00007f7321f88a23 in free () from /lib/libc.so.6
(gdb) bt
#0 0x00007f7321f88a23 in free () from /lib/libc.so.6
#1 0x00007f73245a401f in RelinquishMagickMemory (memory=0x62a520)
at magick/memory.c:656
#2 0x00007f7324628ae5 in XDestroyResourceInfo (resource_info=0x7fff2caf8c90)
at magick/xwindow.c:1805
#3 0x00007f73242327f3 in ImportImageCommand (image_info=0x60baf0, argc=1,
argv=0x605360, wand_unused_metadata=<value optimized out>,
exception=0x602050) at wand/import.c:1263
#4 0x0000000000400e0c in main (argc=1, argv=0x7fff2cafa258)
at utilities/import.c:122
(gdb)

Re: segfault in import

Posted: 2008-12-30T11:07:09-07:00
by magick
Unfortunately we cannot reproduce this bug. Until we get additional information to help us debug, a solution is pending.

Re: segfault in import

Posted: 2008-12-30T11:52:10-07:00
by 3f719
Weird, I did "make uninstall" and tried ImageMagick-6.0.6.

Same crash:
gdb --args import -window root image.png
GNU gdb 6.8-debian
Copyright (C) 2008 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 "x86_64-linux-gnu"...
(gdb) run
Starting program: /usr/local/bin/import -window root image.png
[Thread debugging using libthread_db enabled]
[New Thread 0x7f39009fd6e0 (LWP 15198)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f39009fd6e0 (LWP 15198)]
0x00007f38fe297a23 in free () from /lib/libc.so.6
(gdb) bt
#0 0x00007f38fe297a23 in free () from /lib/libc.so.6
#1 0x00007f39003c8b0e in RelinquishMagickMemory (memory=0x62b120)
at memory.c:550
#2 0x00007f3900428375 in XDestroyResourceInfo (resource_info=0x7fff08a20df0)
at xwindow.c:1791
#3 0x00007f39003bca14 in ImportImageCommand (image_info=0x620790, argc=4,
argv=0x6072c0, metadata=<value optimized out>, exception=0x7fff08a22030)
at import.c:1186
#4 0x0000000000400ccf in main (argc=4, argv=0x7fff08a22158) at import.c:110
(gdb)

Re: segfault in import

Posted: 2008-12-30T12:13:21-07:00
by mkoppanen
so ln -s /usr/local/lib/libMagickCore.so.1 /usr/lib/libMagickCore.so.1
(I guess there is a bug somewhere in the configure script?)
This sounds more like you don't have /usr/local/lib in your ld.so.conf.

You can try something like:

Code: Select all

echo "/usr/local/lib" > /etc/ld.so.conf.d/usr-local.conf
ldconfig
I tested with following version:

Version: ImageMagick 6.4.2 08/22/08 Q16 http://www.imagemagick.org
Unable to reproduce this issue.

Re: segfault in import

Posted: 2009-01-10T11:00:16-07:00
by broucaries
Any news?

Regards

Re: segfault in import

Posted: 2009-01-10T11:08:44-07:00
by 3f719
Here is the news:

I created a new user account and started "xinit -- :1". import works perfectly.


But it still segfaults under my main user.

Re: segfault in import

Posted: 2009-01-10T14:41:46-07:00
by magick
As stated we cannot reproduce the problem. It would be helpful if you downloaded the latest ImageMagick release, 6.4.8-5 from ftp://ftp.imagemagick.org/pub/ImageMagick, and produced a stack trace with line numbers. That may provide us with enough information to debug the problem remotely.

Re: segfault in import

Posted: 2009-01-10T15:27:06-07:00
by 3f719
well, just now I downloaded the latest version ImageMagick-6.4.8-3 and it does not segfault anymore. Hooray!
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