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Thread: double free or corruption (out) .. but only sometimes ..
double free or corruption (out) .. but only sometimes ..
country flaguser name
Germany		 2007-03-12 19:08:39 

  


  

    Hey ..
i have the following python code using the PIL Library:

import Image, ImageDraw, ImageFont
from random import choice
def createCaptcha():
    imgtext = ''.join([choice('QWERTZUPASDFGHJKLYXCVBNM') for i in range(5)])
    img = Image.open('captcha_bg.jpg')
    draw = ImageDraw.Draw(img)
    font = ImageFont.truetype('captcha_font.ttf', 50)
   ; draw.text((10,10), imgtext, font = font, fill=(0,0,0))
    img.save('captcha.jpg')
    
createCaptcha()

Sometimes it works .. 1 time in a row, or 5 times in a row ..
But often i get the following error:

/usr/bin/python -u  "/home/julian/Desktop/captcha.py"
*** glibc detected *** /usr/bin/python: double free or corruption (out): 0x081da618 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb7e658bd]
/lib/tls/i686/cmov/libc.so.6(__libc_free+0x84)[0xb7e65a44]
/usr/lib/python2.4/site-packages/PIL/_imaging.so[0xb7d25ff4]
/usr/lib/python2.4/site-packages/PIL/_imaging.so(ImagingDelete+0x39)[0xb7d26089]
/usr/lib/python2.4/site-packages/PIL/_imaging.so[0xb7d062e5]
/usr/bin/python[0x8100cee]
/usr/bin/python(PyEval_EvalCodeEx+0x313)[0x80b9f93]
/usr/bin/python(PyEval_EvalFrame+0x404a)[0x80b86ea]
/usr/bin/python(PyEval_EvalFrame+0x46f4)[0x80b8d94]
/usr/bin/python(PyEval_EvalCodeEx+0x839)[0x80ba4b9]
/usr/bin/python(PyEval_EvalCode+0x57)[0x80ba527]
/usr/bin/python(PyRun_FileExFlags+0xca)[0x80ddb1a]
/usr/bin/python(PyRun_SimpleFileExFlags+0x187)[0x80ddd07]
/usr/bin/python(Py_Main+0xa82)[0x8055cc2]
/usr/bin/python(main+0x22)[0x8055132]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb7e148cc]
/usr/bin/python[0x8055081]
======= Memory map: ========
08048000-08121000 r-xp 00000000 03:02 649805     /usr/bin/python2.4
08121000-08142000 rw-p 000d8000 03:02 649805     /usr/bin/python2.4
08142000-08204000 rw-p 08142000 00:00 0         ; [heap]
b7a00000-b7a21000 rw-p b7a00000 00:00 0 
b7a21000-b7b00000 ---p b7a21000 00:00 0 
b7b7a000-b7b84000 r-xp 00000000 03:02 1038403    /lib/libgcc_s.so.1
b7b84000-b7b85000 rw-p 00009000 03:02 1038403    /lib/libgcc_s.so.1
b7b90000-b7bfa000 r--p 00000000 03:03 868184     /home/julian/Desktop/captcha_font.ttf
b7bfa000-b7c61000 r-xp 00000000 03:02 650424     /usr/lib/libfreetype.so.6.3.10
b7c61000-b7c64000 rw-p 00067000 03:02 650424     /usr/lib/libfreetype.so.6.3.10
b7c6f000-b7c72000 r-xp 00000000 03:02 909431     /usr/lib/python2.4/site-packages/PIL/_imagingft.so
b7c72000-b7c73000 rw-p 00002000 03:02 909431     /usr/lib/python2.4/site-packages/PIL/_imagingft.so
b7c73000-b7cb4000 rw-p b7c73000 00:00 0 
b7cb6000-b7cba000 r-xp 00000000 03:02 780008     /usr/lib/python2.4/lib-dynload/binascii.so
b7cba000-b7cbb000 rw-p 00003000 03:02 780008     /usr/lib/python2.4/lib-dynload/binascii.so
b7cbb000-b7cbe000 r-xp 00000000 03:02 780025     /usr/lib/python2.4/lib-dynload/math.so
b7cbe000-b7cbf000 rw-p 00002000 03:02 780025     /usr/lib/python2.4/lib-dynload/math.so
b7cbf000-b7cc3000 r-xp 00000000 03:02 780029     /usr/lib/python2.4/lib-dynload/operator.so
b7cc3000-b7cc4000 rw-p 00004000 03:02 780029     /usr/lib/python2.4/lib-dynload/operator.so
b7cc4000-b7cc8000 r-xp 00000000 03:02 780039     /usr/lib/python2.4/lib-dynload/strop.so
b7cc8000-b7cca000 rw-p 00003000 03:02 780039     /usr/lib/python2.4/lib-dynload/strop.so
b7cca000-b7cdd000 r-xp 00000000 03:02 650954     /usr/lib/libz.so.1.2.3
b7cdd000-b7cde000 rw-p 00012000 03:02 650954     /usr/lib/libz.so.1.2.3
b7cde000-b7cfc000 r-xp 00000000 03:02 650690     /usr/lib/libjpeg.so.62.0.0
b7cfc000-b7cfd000 rw-p 0001d000 03:02 650690     /usr/lib/libjpeg.so.62.0.0
b7cfd000-b7d2e000 r-xp 00000000 03:02 909430     /usr/lib/python2.4/site-packages/PIL/_imaging.so
b7d2e000-b7d31000 rw-p 00031000 03:02 909430     /usr/lib/python2.4/site-packages/PIL/_imaging.so
b7d31000-b7d39000 rw-p b7d31000 00:00 0 
b7d39000-b7d40000 r--s 00000000 03:02 665864     /usr/lib/gconv/gconv-modules.cache
b7d40000-b7d7b000 r--p 00000000 03:02 698734     /usr/lib/locale/de_DE.utf8/LC_CTYPE
b7d7b000-b7dff000 rw-p b7d7b000 00:00 0 
b7dff000-b7f2c000 r-xp 00000000 03:02 1070812    /lib/tls/i686/cmov/libc-2.4.so
b7f2c000-b7f2e000 r--p 0012c000 03:02 1070812    /lib/tls/i686/cmov/libc-2.4.so
b7f2e000-b7f30000 rw-p 0012e000 03:02 1070812    /lib/tls/i686/cmov/libc-2.4.so
b7f30000-b7f33000 rw-p b7f30000 00:00 0 
b7f33000-b7f57000 r-xp 00000000 03:02 1070816    /lib/tls/i686/cmov/libm-2.4.so
b7f57000-b7f59000 rw-p 00023000 03:02 1070816    /lib/tls/i686/cmov/libm-2.4.so
b7f59000-b7f5b000 r-xp 00000000 03:02 1070831    /lib/tls/i686/cmov/libutil-2.4.so
b7f5b000-b7f5d000 rw-p 00001000 03:02 1070831    /lib/tls/i686/cmov/libutil-2.4.so
b7f5d000-b7f5f000 r-xp 00000000 03:02 1070815    /lib/tls/i686/cmov/libdl-2.4.so
b7f5f000-b7f61000 rw-p 00001000 03:02 1070815    /lib/tls/i686/cmov/libdl-2.4.so
b7f61000-b7f70000 r-xp 00000000 03:02 1070826    /lib/tls/i686/cmov/libpthread-2.4.so
b7f70000-b7f72000 rw-p 0000f000 03:02 1070826    /lib/tls/i686/cmov/libpthread-2.4.so
b7f72000-b7f75000 rw-p b7f72000 00:00 0 
b7f75000-b7f77000 r-xp 00000000 03:02 780001     /usr/lib/python2.4/lib-dynload/_random.so
b7f77000-b7f78000 rw-p 00002000 03:02 780001     /usr/lib/python2.4/lib-dynload/_random.so
b7f78000-b7f7e000 r-xp 00000000 03:02 780006     /usr/lib/python2.4/lib-dynload/array.so
b7f7e000-b7f80000 rw-p 00006000 03:02 780006     /usr/lib/python2.4/lib-dynload/array.so
b7f80000-b7f81000 rw-p b7f80000 00:00 0 
b7f81000-b7f9a000 r-xp 00000000 03:02 1038527    /lib/ld-2.4.so
b7f9a000-b7f9c000 rw-p 00018000 03:02 1038527    /lib/ld-2.4.so
bf9e1000-bf9fb000 rw-p bf9e1000 00:00 0         ; [stack]
ffffe000-fffff000 ---p 00000000 00:00 0         ; [vdso]

Any ideas? Any solutions?

I hope so, because it would be very important for me!!
Thanks a lot.
(Sorry for my bad english 

Julian

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    Re:  double free or corruption (out) ..
but only sometimes ..
  


  

     user name

     2007-03-13 08:50:52
  


  

    
Hi

can you try to add a "del draw" just before the
save ?

if not, search google for : glibc detected python double
free or corruption

you try to upgrade your PIL library, or python

if you compiled PIL yourself, try tu upgrade gcc too


Good luck



On 3/13/07, Julian Maicher <suyehotmail.de> wrote:
>
> Hey ..
> i have the following python code using the PIL
Library:
>
> import Image, ImageDraw, ImageFont
> from random import choice
> def createCaptcha():
>     imgtext =
''.join([choice('QWERTZUPASDFGHJKLYXCVBNM')
> for i in range(5)])
>     img = Image.open('captcha_bg.jpg')
>     draw = ImageDraw.Draw(img)
>     font = ImageFont.truetype('captcha_font.ttf', 50)
>     draw.text((10,10), imgtext, font = font,
fill=(0,0,0))
>     img.save('captcha.jpg')
>
> createCaptcha()
>
> Sometimes it works .. 1 time in a row, or 5 times in a
row ..
> But often i get the following error:
>
> /usr/bin/python -u 
"/home/julian/Desktop/captcha.py"
> *** glibc detected *** /usr/bin/python: double free or
corruption (out):
> 0x081da618 ***
> ======= Backtrace: =========
> /lib/tls/i686/cmov/libc.so.6[0xb7e658bd]
>
/lib/tls/i686/cmov/libc.so.6(__libc_free+0x84)[0xb7e65a44]
>
/usr/lib/python2.4/site-packages/PIL/_imaging.so[0xb7d25ff4]

>
/usr/lib/python2.4/site-packages/PIL/_imaging.so(ImagingDele
te+0x39)[0xb7d26089]
>
/usr/lib/python2.4/site-packages/PIL/_imaging.so[0xb7d062e5]

> /usr/bin/python[0x8100cee]
> /usr/bin/python(PyEval_EvalCodeEx+0x313)[0x80b9f93]
> /usr/bin/python(PyEval_EvalFrame+0x404a)[0x80b86ea]
> /usr/bin/python(PyEval_EvalFrame+0x46f4)[0x80b8d94]
> /usr/bin/python(PyEval_EvalCodeEx+0x839)[0x80ba4b9]
> /usr/bin/python(PyEval_EvalCode+0x57)[0x80ba527]
> /usr/bin/python(PyRun_FileExFlags+0xca)[0x80ddb1a]
>
/usr/bin/python(PyRun_SimpleFileExFlags+0x187)[0x80ddd07]
> /usr/bin/python(Py_Main+0xa82)[0x8055cc2]
> /usr/bin/python(main+0x22)[0x8055132]
>
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb7e14
8cc]
> /usr/bin/python[0x8055081]
> ======= Memory map: ========
> 08048000-08121000 r-xp 00000000 03:02 649805    
/usr/bin/python2.4
> 08121000-08142000 rw-p 000d8000 03:02 649805    
/usr/bin/python2.4
> 08142000-08204000 rw-p 08142000 00:00 0         
[heap]
> b7a00000-b7a21000 rw-p b7a00000 00:00 0
> b7a21000-b7b00000 ---p b7a21000 00:00 0
> b7b7a000-b7b84000 r-xp 00000000 03:02 1038403   
/lib/libgcc_s.so.1
> b7b84000-b7b85000 rw-p 00009000 03:02 1038403   
/lib/libgcc_s.so.1
> b7b90000-b7bfa000 r--p 00000000 03:03 868184
> /home/julian/Desktop/captcha_font.ttf
> b7bfa000-b7c61000 r-xp 00000000 03:02 650424
> /usr/lib/libfreetype.so.6.3.10
> b7c61000-b7c64000 rw-p 00067000 03:02 650424
> /usr/lib/libfreetype.so.6.3.10
> b7c6f000-b7c72000 r-xp 00000000 03:02 909431
> /usr/lib/python2.4/site-packages/PIL/_imagingft.so
> b7c72000-b7c73000 rw-p 00002000 03:02 909431
> /usr/lib/python2.4/site-packages/PIL/_imagingft.so
> b7c73000-b7cb4000 rw-p b7c73000 00:00 0
> b7cb6000-b7cba000 r-xp 00000000 03:02 780008
> /usr/lib/python2.4/lib-dynload/binascii.so
> b7cba000-b7cbb000 rw-p 00003000 03:02 780008
> /usr/lib/python2.4/lib-dynload/binascii.so
> b7cbb000-b7cbe000 r-xp 00000000 03:02 780025
> /usr/lib/python2.4/lib-dynload/math.so
> b7cbe000-b7cbf000 rw-p 00002000 03:02 780025
> /usr/lib/python2.4/lib-dynload/math.so
> b7cbf000-b7cc3000 r-xp 00000000 03:02 780029
> /usr/lib/python2.4/lib-dynload/operator.so
> b7cc3000-b7cc4000 rw-p 00004000 03:02 780029
> /usr/lib/python2.4/lib-dynload/operator.so
> b7cc4000-b7cc8000 r-xp 00000000 03:02 780039
> /usr/lib/python2.4/lib-dynload/strop.so
> b7cc8000-b7cca000 rw-p 00003000 03:02 780039
> /usr/lib/python2.4/lib-dynload/strop.so
> b7cca000-b7cdd000 r-xp 00000000 03:02 650954    
/usr/lib/libz.so.1.2.3
> b7cdd000-b7cde000 rw-p 00012000 03:02 650954    
/usr/lib/libz.so.1.2.3
> b7cde000-b7cfc000 r-xp 00000000 03:02 650690    
/usr/lib/libjpeg.so.62.0.0
> b7cfc000-b7cfd000 rw-p 0001d000 03:02 650690    
/usr/lib/libjpeg.so.62.0.0
> b7cfd000-b7d2e000 r-xp 00000000 03:02 909430
> /usr/lib/python2.4/site-packages/PIL/_imaging.so
> b7d2e000-b7d31000 rw-p 00031000 03:02 909430
> /usr/lib/python2.4/site-packages/PIL/_imaging.so
> b7d31000-b7d39000 rw-p b7d31000 00:00 0
> b7d39000-b7d40000 r--s 00000000 03:02 665864
> /usr/lib/gconv/gconv-modules.cache
> b7d40000-b7d7b000 r--p 00000000 03:02 698734
> /usr/lib/locale/de_DE.utf8/LC_CTYPE
> b7d7b000-b7dff000 rw-p b7d7b000 00:00 0
> b7dff000-b7f2c000 r-xp 00000000 03:02 1070812
> /lib/tls/i686/cmov/libc-2.4.so
> b7f2c000-b7f2e000 r--p 0012c000 03:02 1070812
> /lib/tls/i686/cmov/libc-2.4.so
> b7f2e000-b7f30000 rw-p 0012e000 03:02 1070812
> /lib/tls/i686/cmov/libc-2.4.so
> b7f30000-b7f33000 rw-p b7f30000 00:00 0
> b7f33000-b7f57000 r-xp 00000000 03:02 1070816
> /lib/tls/i686/cmov/libm-2.4.so
> b7f57000-b7f59000 rw-p 00023000 03:02 1070816
> /lib/tls/i686/cmov/libm-2.4.so
> b7f59000-b7f5b000 r-xp 00000000 03:02 1070831
> /lib/tls/i686/cmov/libutil-2.4.so
> b7f5b000-b7f5d000 rw-p 00001000 03:02 1070831
> /lib/tls/i686/cmov/libutil-2.4.so
> b7f5d000-b7f5f000 r-xp 00000000 03:02 1070815
> /lib/tls/i686/cmov/libdl-2.4.so
> b7f5f000-b7f61000 rw-p 00001000 03:02 1070815
> /lib/tls/i686/cmov/libdl-2.4.so
> b7f61000-b7f70000 r-xp 00000000 03:02 1070826
> /lib/tls/i686/cmov/libpthread-2.4.so
> b7f70000-b7f72000 rw-p 0000f000 03:02 1070826
> /lib/tls/i686/cmov/libpthread-2.4.so
> b7f72000-b7f75000 rw-p b7f72000 00:00 0
> b7f75000-b7f77000 r-xp 00000000 03:02 780001
> /usr/lib/python2.4/lib-dynload/_random.so
> b7f77000-b7f78000 rw-p 00002000 03:02 780001
> /usr/lib/python2.4/lib-dynload/_random.so
> b7f78000-b7f7e000 r-xp 00000000 03:02 780006
> /usr/lib/python2.4/lib-dynload/array.so
> b7f7e000-b7f80000 rw-p 00006000 03:02 780006
> /usr/lib/python2.4/lib-dynload/array.so
> b7f80000-b7f81000 rw-p b7f80000 00:00 0
> b7f81000-b7f9a000 r-xp 00000000 03:02 1038527   
/lib/ld-2.4.so
> b7f9a000-b7f9c000 rw-p 00018000 03:02 1038527   
/lib/ld-2.4.so
> bf9e1000-bf9fb000 rw-p bf9e1000 00:00 0         
[stack]
> ffffe000-fffff000 ---p 00000000 00:00 0         
[vdso]
>
> Any ideas? Any solutions?
>
> I hope so, because it would be very important for me!!
> Thanks a lot.
> (Sorry for my bad english 
>
> Julian
>
> ________________________________
> Suchen Sie von einer beliebigen Webseite aus - mit dem
perfekten Schutz.
> Holen Sie sich noch heute die KOSTENLOSE Windows Live
Toolbar! Jetzt testen!
> _______________________________________________
> Image-SIG maillist  -  Image-SIGpython.org
> htt
p://mail.python.org/mailman/listinfo/image-sig
>
>


-- 
--
Alain Spineux
aspineux gmail com
May the sources be with you
_______________________________________________
Image-SIG maillist  -  Image-SIGpython.org
htt
p://mail.python.org/mailman/listinfo/image-sig



  


  

    
  

  
  
   
     
    






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