https://www.fmtc.be/bugzilla/orocos/show_bug.cgi?id=743

Ruben Smits <ruben [dot] smits [..] ...> changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |ruben [dot] smits [..] ...en.b
| |e
Resolution| |FIXED
Status|NEW |RESOLVED

--- Comment #1 from Ruben Smits <ruben [dot] smits [..] ...> 2009-12-14 21:31:30 ---
A fix is committed on trunk, the code was waiting to cause a segfault :),

svn ci -m"Fix for Bug 743: Python bindings crash when printing a Jacobian, use
a stringstream instead of charbuffer"
Sending bindings/python/PyKDL/kinfam.sip
Transmitting file data .
Committed revision 31298.

PS A workaround that needs printing is not a very nice workaround, maybe its
easier to ditch sip 4.7.3 support?

On Fri, Dec 11, 2009 at 7:32 PM, Wim Meeussen <meeussen [..] ...> wrote:
> https://www.fmtc.be/bugzilla/orocos/show_bug.cgi?id=743
>
>           Summary: Python bindings crash when printing a Jacobian
>           Product: KDL
>           Version: kdl-trunk
>          Platform: All
>        OS/Version: GNU/Linux
>            Status: NEW
>          Severity: normal
>          Priority: P3
>         Component: Primitives
>        AssignedTo: orocos-dev [..] ...
>        ReportedBy: meeussen [..] ...
>                CC: orocos-dev [..] ...
>   Estimated Hours: 0.0
>
>
> PyKDL segfaults or aborts from time to time when I try to print a Jacobian.
> Simply calling:
>
> jac = Jacobian(7)
> print jac
>
> enough times will reproduce the problem. I tested on a few different
> configurations, and it crashing on every one
> :
>  * python2.6 - sip 4.7.9 - Linux agn 2.6.28-14-generic #47-Ubuntu SMP Sat Jul
> 25 01:19:55 UTC 2009 x86_64 GNU/Linux
>  * python2.5 - sip 4.7.9 - Linux adm 2.6.24-25-generic #1 SMP Tue Oct 20
> 07:31:10 UTC 2009 i686 GNU/Linux
>  * python2.5 - sip 4.7.3 - Linux adm 2.6.24-25-generic #1 SMP Tue Oct 20
> 07:31:10 UTC 2009 i686 GNU/Linux
>
> I need the printing of a Jacobian and Rotation to create a workaround for the
> problems with __getitem__ and sip 4.7.3
>

Can you provide a backtrace that includes some debug information?

Ruben

> This is the output I get in case it aborts:
>
> *** buffer overflow detected ***: python terminated
> ======= Backtrace: =========
> /lib/libc.so.6(__fortify_fail+0x37)[0x7f29b84b22c7]
> /lib/libc.so.6[0x7f29b84b0170]
> /lib/libc.so.6[0x7f29b84af519]
> /lib/libc.so.6(_IO_default_xsputn+0x96)[0x7f29b8429426]
> /lib/libc.so.6(_IO_vfprintf+0x63b)[0x7f29b83f8fdb]
> /lib/libc.so.6(__vsprintf_chk+0x99)[0x7f29b84af5b9]
> /lib/libc.so.6(__sprintf_chk+0x80)[0x7f29b84af500]
> /u/wim/ros/work/geometry/kdl/lib/PyKDL.so[0x7f29b72a28ea]
> python(_PyObject_Str+0x6f)[0x45179f]
> python(PyObject_Str+0x13)[0x451853]
> python[0x4519cd]
> python(PyFile_WriteObject+0x84)[0x434094]
> python(PyEval_EvalFrameEx+0x3cd0)[0x4a19b0]
> python(PyEval_EvalCodeEx+0x869)[0x4a4649]
> python(PyEval_EvalCode+0x32)[0x4a4762]
> python(PyRun_FileExFlags+0x13c)[0x4c4c3c]
> python(PyRun_SimpleFileExFlags+0x1fb)[0x4c4f6b]
> python(Py_Main+0xb9e)[0x4189ce]
> /lib/libc.so.6(__libc_start_main+0xe6)[0x7f29b83d15a6]
> python[0x417ae9]
> ======= Memory map: ========
> 00400000-00616000 r-xp 00000000 08:01 10561355
> /usr/bin/python2.6
> 00815000-00816000 r--p 00215000 08:01 10561355
> /usr/bin/python2.6
> 00816000-00876000 rw-p 00216000 08:01 10561355
> /usr/bin/python2.6
> 00876000-00885000 rw-p 00876000 00:00 0
> 01ec4000-022f1000 rw-p 01ec4000 00:00 0                                  [heap]
> 7f29b642d000-7f29b6442000 r-xp 00000000 08:01 5652507
> /usr/lib/python2.6/dist-packages/sip.so
> 7f29b6442000-7f29b6642000 ---p 00015000 08:01 5652507
> /usr/lib/python2.6/dist-packages/sip.so
> 7f29b6642000-7f29b6643000 r--p 00015000 08:01 5652507
> /usr/lib/python2.6/dist-packages/sip.so
> 7f29b6643000-7f29b6644000 rw-p 00016000 08:01 5652507
> /usr/lib/python2.6/dist-packages/sip.so
> 7f29b6644000-7f29b6645000 rw-p 7f29b6644000 00:00 0
> 7f29b6645000-7f29b665b000 r-xp 00000000 08:01 4669504
> /lib/libgcc_s.so.1
> 7f29b665b000-7f29b685b000 ---p 00016000 08:01 4669504
> /lib/libgcc_s.so.1
> 7f29b685b000-7f29b685c000 r--p 00016000 08:01 4669504
> /lib/libgcc_s.so.1
> 7f29b685c000-7f29b685d000 rw-p 00017000 08:01 4669504
> /lib/libgcc_s.so.1
> 7f29b685d000-7f29b694e000 r-xp 00000000 08:01 10560862
> /usr/lib/libstdc++.so.6.0.10
> 7f29b694e000-7f29b6b4e000 ---p 000f1000 08:01 10560862
> /usr/lib/libstdc++.so.6.0.10
> 7f29b6b4e000-7f29b6b55000 r--p 000f1000 08:01 10560862
> /usr/lib/libstdc++.so.6.0.10
> 7f29b6b55000-7f29b6b57000 rw-p 000f8000 08:01 10560862
> /usr/lib/libstdc++.so.6.0.10
> 7f29b6b57000-7f29b6b6a000 rw-p 7f29b6b57000 00:00 0
> 7f29b6b6a000-7f29b6bcf000 r-xp 00000000 00:1d 40436378
> /wg/adm/wim/ros/work/geometry/kdl/lib/liborocos-kdl.so.1.0.99
> 7f29b6bcf000-7f29b6dcf000 ---p 00065000 00:1d 40436378
> /wg/adm/wim/ros/work/geometry/kdl/lib/liborocos-kdl.so.1.0.99
> 7f29b6dcf000-7f29b6dd1000 r--p 00065000 00:1d 40436378
> /wg/adm/wim/ros/work/geometry/kdl/lib/liborocos-kdl.so.1.0.99
> 7f29b6dd1000-7f29b6dd2000 rw-p 00067000 00:1d 40436378
> /wg/adm/wim/ros/work/geometry/kdl/lib/liborocos-kdl.so.1.0.99
> 7f29b6dd2000-7f29b700d000 r-xp 00000000 08:01 10566180
> /usr/lib/libpython2.6.so.1.0
> 7f29b700d000-7f29b720d000 ---p 0023b000 08:01 10566180
> /usr/lib/libpython2.6.so.1.0
> 7f29b720d000-7f29b720f000 r--p 0023b000 08:01 10566180
> /usr/lib/libpython2.6.so.1.0
> 7f29b720f000-7f29b726f000 rw-p 0023d000 08:01 10566180
> /usr/lib/libpython2.6.so.1.0
> 7f29b726f000-7f29b727e000 rw-p 7f29b726f000 00:00 0
> 7f29b727e000-7f29b72b7000 r-xp 00000000 00:1d 40436384
> /wg/adm/wim/ros/work/geometry/kdl/lib/PyKDL.so
> 7f29b72b7000-7f29b74b6000 ---p 00039000 00:1d 40436384
> /wg/adm/wim/ros/work/geometry/kdl/lib/PyKDL.so
> 7f29b74b6000-7f29b74b7000 r--p 00038000 00:1d 40436384
> /wg/adm/wim/ros/work/geometry/kdl/lib/PyKDL.so
> 7f29b74b7000-7f29b74bc000 rw-p 00039000 00:1d 40436384
> /wg/adm/wim/ros/work/geometry/kdl/lib/PyKDL.so
> 7f29b74bc000-7f29b761f000 r-xp 00000000 08:01 4669528
> /lib/libcrypto.so.0.9.8
> 7f29b761f000-7f29b781e000 ---p 00163000 08:01 4669528
> /lib/libcrypto.so.0.9.8
> 7f29b781e000-7f29b782b000 r--p 00162000 08:01 4669528
> /lib/libcrypto.so.0.9.8
> 7f29b782b000-7f29b7841000 rw-p 0016f000 08:01 4669528
> /lib/libcrypto.so.0.9.8
> 7f29b7841000-7f29b7845000 rw-p 7f29b7841000 00:00 0
> 7f29b7845000-7f29b788e000 r-xp 00000000 08:01 4669529
> /lib/libssl.so.0.9.8
> 7f29b788e000-7f29b7a8e000 ---p 00049000 08:01 4669529
> /lib/libssl.so.0.9.8
> 7f29b7a8e000-7f29b7a8f000 r--p 00049000 08:01 4669529
> /lib/libssl.so.0.9.8
> 7f29b7a8f000-7f29b7a94000 rw-p 0004a000 08:01 4669529
> /lib/libssl.so.0.9.8
> 7f29b7a94000-7f29b7a9b000 r-xp 00000000 08:01 10569237
> /usr/lib/python2.6/lib-dynload/_ssl.so
> 7f29b7a9b000-7f29b7c9b000 ---p 00007000 08:01 10569237
> /usr/lib/python2.6/lib-dynload/_ssl.so
> 7f29b7c9b000-7f29b7c9c000 r--p 00007000 08:01 10569237
> /usr/lib/python2.6/lib-dynload/_ssl.so
> 7f29b7c9c000-7f29b7c9d000 rw-p 00008000 08:01 10569237
> /usr/lib/python2.6/lib-dynload/_ssl.so
> 7f29b7c9d000-7f29b7d5e000 rw-p 7f29b7c9d000 00:00 0
> 7f29b7d5e000-7f29b7d62000 r-xp 00000000 08:01 5652544
> /usr/lib/python2.6/dist-packages/sgmlop.so
> 7f29b7d62000-7f29b7f62000 ---p 00004000 08:01 5652544
> /usr/lib/python2.6/dist-packages/sgmlop.so
> 7f29b7f62000-7f29b7f63000 r--p 00004000 08:01 5652544
> /usr/lib/python2.6/dist-packages/sgmlop.so
> 7f29b7f63000-7f29b7f64000 rw-p 00005000 08:01 5652544
> /usr/lib/python2.6/dist-packages/sgmlop.so
> 7f29b7f64000-7f29b7f76000 r-xp 00000000 08:01 10569222
> /usr/lib/python2.6/lib-dynload/datetime.so
> 7f29b7f76000-7f29b8175000 ---p 00012000 08:01 10569222
> /usr/lib/python2.6/lib-dynload/datetime.so
> 7f29b8175000-7f29b8176000 r--p 00011000 08:01 10569222
> /usr/lib/python2.6/lib-dynload/datetime.so
> 7f29b8176000-7f29b817a000 rw-p 00012000 08:01 10569222
> /usr/lib/python2.6/lib-dynload/datetime.so
> 7f29b817a000-7f29b81af000 r-xp 00000000 08:01 10569249
> /usr/lib/python2.6/lib-dynload/pyexpat.so
> 7f29b81af000-7f29b83ae000 ---p 00035000 08:01 10569249
> /usr/lib/python2.6/lib-dynload/pyexpat.so
> 7f29b83ae000-7f29b83b1000 r--p 00034000 08:01 10569249
> /usr/lib/python2.6/lib-dynload/pyexpat.so
> 7f29b83b1000-7f29b83b3000 rw-p 00037000 08:01 10569249
> /usr/lib/python2.6/lib-dynload/pyexpat.so
> 7f29b83b3000-7f29b851b000 r-xp 00000000 08:01 4669457
> /lib/libc-2.9.so
> 7f29b851b000-7f29b871b000 ---p 00168000 08:01 4669457
> /lib/libc-2.9.so
> 7f29b871b000-7f29b871f000 r--p 00168000 08:01 4669457
> /lib/libc-2.9.so
> 7f29b871f000-7f29b8720000 rw-p 0016c000 08:01 4669457
> /lib/libc-2.9.so
> 7f29b8720000-7f29b8725000 rw-p 7f29b8720000 00:00 0
> 7f29b8725000-7f29b87a9000 r-xp 00000000 08:01 4669467
> /lib/libm-2.9.so
> 7f29b87a9000-7f29b89a8000 ---p 00084000 08:01 4669467
> /lib/libm-2.9.so
> 7f29b89a8000-7f29b89a9000 r--p 00083000 08:01 4669467
> /lib/libm-2.9.so
> 7f29b89a9000-7f29b89aa000 rw-p 00084000 08:01 4669467
> /lib/libm-2.9.so
> 7f29b89aa000-7f29b89c1000 r-xp 00000000 08:01 4669578
> /lib/libz.so.1.2.3.3
> 7f29b89c1000-7f29b8bc0000 ---p 00017000 08:01 4669578
> /lib/libz.so.1.2.3.3
> 7f29b8bc0000-7f29b8bc1000 r--p 00016000 08:01 4669578
> /lib/libz.so.1.2.3.3
> 7f29b8bc1000-7f29b8bc2000 rw-p 00017000 08:01 4669578
> /lib/libz.so.1.2.3.3
> 7f29b8bc2000-7f29b8bc4000 r-xp 00000000 08:01 4669482
> /lib/libutil-2.9.so
> 7f29b8bc4000-7f29b8dc3000 ---p 00002000 08:01 4669482
> /lib/libutil-2.9.so
> 7f29b8dc3000-7f29b8dc4000 r--p 00001000 08:01 4669482
> /lib/libutil-2.9.so
> 7f29b8dc4000-7f29b8dc5000 rw-p 00002000 08:01 4669482
> /lib/libutil-2.9.so
> 7f29b8dc5000-7f29b8dc7000 r-xp 00000000 08:01 4669466
> /lib/libdl-2.9.so
> 7f29b8dc7000-7f29b8fc7000 ---p 00002000 08:01 4669466
> /lib/libdl-2.9.so
> 7f29b8fc7000-7f29b8fc8000 r--p 00002000 08:01 4669466
> /lib/libdl-2.9.so
> 7f29b8fc8000-7f29b8fc9000 rw-p 00003000 08:01 4669466
> /lib/libdl-2.9.so
> 7f29b8fc9000-7f29b8fe0000 r-xp 00000000 08:01 4669477
> /lib/libpthread-2.9.so
> 7f29b8fe0000-7f29b91df000 ---p 00017000 08:01 4669477
> /lib/libpthread-2.9.so
> 7f29b91df000-7f29b91e0000 r--p 00016000 08:01 4669477
> /lib/libpthread-2.9.so
> 7f29b91e0000-7f29b91e1000 rw-p 00017000 08:01 4669477
> /lib/libpthread-2.9.so
> 7f29b91e1000-7f29b91e5000 rw-p 7f29b91e1000 00:00 0
> 7f29b91e5000-7f29b9205000 r-xp 00000000 08:01 4669454
> /lib/ld-2.9.so
> 7f29b9221000-7f29b92a3000 rw-p 7f29b9221000 00:00 0
> 7f29b92a4000-7f29b92ab000 r--s 00000000 08:01 10561535
> /usr/lib/gconv/gconv-modules.cache
> 7f29b92ab000-7f29b92ea000 r--p 00000000 08:01 10585646
> /usr/lib/locale/en_US.utf8/LC_CTYPE
> 7f29b92ea000-7f29b932b000 rw-p 7f29b92ea000 00:00 0
> 7f29b935c000-7f29b93e2000 rw-p 7f29b935c000 00:00 0
> 7f29b9401000-7f29b9404000 rw-p 7f29b9401000 00:00 0
> 7f29b9404000-7f29b9405000 r--p 0001f000 08:01 4669454
> /lib/ld-2.9.so
> 7f29b9405000-7f29b9406000 rw-p 00020000 08:01 4669454
> /lib/ld-2.9.so
> 7fffc13dd000-7fffc1406000 rw-p 7ffffffd6000 00:00 0
> [stack]
> 7fffc15ff000-7fffc1600000 r-xp 7fffc15ff000 00:00 0                      [vdso]
> ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
> [vsyscall]
> Aborted
>
> --
> Configure bugmail: https://www.fmtc.be/bugzilla/orocos/userprefs.cgi?tab=email
> ------- You are receiving this mail because: -------
> You are on the CC list for the bug.
> You are the assignee for the bug.
> --
> Orocos-Dev mailing list
> Orocos-Dev [..] ...
> http://lists.mech.kuleuven.be/mailman/listinfo/orocos-dev
>