[Numpy-discussion] crash at prompt exit after running test

[Johann Cohen-Tanugi]

thanks Robert, here it is :

 >>> exit()
python: Modules/gcmodule.c:277: visit_decref: Assertion `gc->gc.gc_refs 
!= 0' failed.

Program received signal SIGABRT, Aborted.
0x004a1416 in __kernel_vsyscall ()
Missing separate debuginfos, use: debuginfo-install 
atlas-3.8.3-12.fc12.i686 compat-libf2c-34-3.4.6-18.i686 
keyutils-libs-1.2-6.fc12.i686 krb5-libs-1.7.1-2.fc12.i686 
libcom_err-1.41.9-7.fc12.i686 libgcc-4.4.3-4.fc12.i686 
libgfortran-4.4.3-4.fc12.i686 libselinux-2.0.90-5.fc12.i686
(gdb) bt
#0  0x004a1416 in __kernel_vsyscall ()
#1  0x00609a91 in raise (sig=6) at 
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0x0060b35a in abort () at abort.c:92
#3  0x00602be8 in __assert_fail (assertion=<value optimized out>, 
file=<value optimized out>, line=<value optimized out>, function=<value 
optimized out>)
     at assert.c:81
#4  0x0032e31e in visit_decref (op=<value optimized out>, data=<value 
optimized out>) at Modules/gcmodule.c:277
#5  0x002a18c2 in dict_traverse (op=<value optimized out>, visit=<value 
optimized out>, arg=<value optimized out>) at Objects/dictobject.c:2003
#6  0x0032eaf3 in subtract_refs (generation=<value optimized out>) at 
Modules/gcmodule.c:296
#7  collect (generation=<value optimized out>) at Modules/gcmodule.c:817
#8  0x0032f640 in PyGC_Collect () at Modules/gcmodule.c:1292
#9  0x003200f0 in Py_Finalize () at Python/pythonrun.c:424
#10 0x00320218 in Py_Exit (sts=<value optimized out>) at 
Python/pythonrun.c:1714
#11 0x00320367 in handle_system_exit () at Python/pythonrun.c:1116
#12 0x0032057d in PyErr_PrintEx (set_sys_last_vars=<value optimized 
out>) at Python/pythonrun.c:1126
#13 0x0032079f in PyErr_Print () at Python/pythonrun.c:1035
#14 0x00320f9a in PyRun_InteractiveOneFlags (fp=<value optimized out>, 
filename=<value optimized out>, flags=<value optimized out>) at 
Python/pythonrun.c:843
#15 0x00321093 in PyRun_InteractiveLoopFlags (fp=<value optimized out>, 
filename=<value optimized out>, flags=0xbfffefec) at Python/pythonrun.c:760
#16 0x003211df in PyRun_AnyFileExFlags (fp=<value optimized out>, 
filename=0x365add "<stdin>", closeit=<value optimized out>, flags=<value 
optimized out>)
     at Python/pythonrun.c:729
#17 0x0032dc85 in Py_Main (argc=<value optimized out>, argv=<value 
optimized out>) at Modules/main.c:599
#18 0x080485c8 in main (argc=<value optimized out>, argv=<value 
optimized out>) at Modules/python.c:23


I also saw things like:
warning: .dynamic section for "/lib/libcom_err.so.2" is not at the 
expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libkeyutils.so.1" is not at the 
expected address
warning: difference appears to be caused by prelink, adjusting expectations

Johann

On 03/09/2010 08:56 PM, Robert Kern wrote:
> On Tue, Mar 9, 2010 at 13:50, Johann Cohen-Tanugi<cohen@lpta.in2p3.fr>  wrote:
>    
>> I have tried to localize the core dump in vain.... any idea where I should
>> look for it?
>> I did not manage to catch it with pdb :
>>      
> Not pdb, gdb.
>
> $ gdb python
> ...
> (gdb) run
> Starting program ...
> ... # Possibly another (gdb) prompt:
> (gdb) continue  #<- Type this.
> Python 2.6.2 ...
>
>    
>>>> import numpy  #<- Type this and do whatever else is necessary to reproduce the crash.
>>>>          
> ...
> (gdb) bt  #<- Type this.
> .... #<- Copy-paste these results here.
>
>