[Python-bugs-list] [ python-Bugs-493183 ] FreeBSD/Python 2.1.1 Segmentation fault

Thu, 13 Dec 2001 21:13:38 -0800

Bugs item #493183, was opened at 2001-12-13 21:02
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=493183&group_id=5470

Category: Python Interpreter Core
Group: Platform-specific
Status: Open
Resolution: None
Priority: 5
Submitted By: Jason R. Mastaler (jasonrm)
Assigned to: Nobody/Anonymous (nobody)
Summary: FreeBSD/Python 2.1.1 Segmentation fault

Initial Comment:
This is Python 2.1.1 on FreeBSD 4.4-RELEASE/i386.

I have a reproducible way to make Python 2.1.1 segfault
here, but I'm
not sure the best way to go about debugging it.  I'll
save you the
gory details unless you request them, but basically I
use a Python
program called "tmda-inject" to send my e-mail.  It's
core dumping
when fed this one particular message (mess1.txt), but
not others.
Further, Python 1.5.2, 2.0 and 2.2b2 on the same
machine have no such
trouble.  It only appears with Python 2.1.1.  I can
also reproduce
this problem a complately different machine also
running FreeBSD 4.4
and Python 2.1.1, but not with other operating
systems.  The problem
appears to be specifically with FreeBSD and Python
2.1.1.

I've attached the "mess1.txt" e-mail message, and also
python2.1.core.
If you'd like to look at tmda-inject, it's part of my
TMDA package
available at http://sf.net/projects/tmda/.  Let me know
if I can do
anything further.

[jasonrm@nightshade jasonrm]$ cat mess1.txt | python2.1
cvs/tmda/dist/bin/tmda-inject 
Segmentation fault (core dumped)

[jasonrm@nightshade jasonrm]$ cat mess1.txt | python1.5
cvs/tmda/dist/bin/tmda-inject 
[jasonrm@nightshade jasonrm]$ cat mess1.txt | python2.0
cvs/tmda/dist/bin/tmda-inject 
[jasonrm@nightshade jasonrm]$ cat mess1.txt | python2.2
cvs/tmda/dist/bin/tmda-inject 

[jasonrm@nightshade jasonrm]$ gdb
/usr/local/bin/python2.1 python2.1.core 
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public
License, and you are
welcome to change it and/or distribute copies of it
under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show
warranty" for details.
This GDB was configured as "i386-unknown-freebsd"...(no
debugging symbols found)...
Core was generated by `python2.1'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libutil.so.3...(no
debugging symbols found)...done.
Reading symbols from /usr/lib/libm.so.2...(no debugging
symbols found)...done.
Reading symbols from /usr/lib/libc_r.so.4...(no
debugging symbols found)...done.
Reading symbols from
/usr/local/lib/python2.1/lib-dynload/strop.so...(no
debugging symbols found)...done.
Reading symbols from
/usr/local/lib/python2.1/lib-dynload/time.so...(no
debugging symbols found)...done.
Reading symbols from
/usr/local/lib/python2.1/lib-dynload/binascii.so...(no
debugging symbols found)...done.
Reading symbols from
/usr/local/lib/python2.1/lib-dynload/sha.so...(no
debugging symbols found)...done.
Reading symbols from
/usr/local/lib/python2.1/site-packages/cdbmodule.so...(no
debugging symbols found)...done.
Reading symbols from /usr/libexec/ld-elf.so.1...(no
debugging symbols found)...done.
#0  0x28177e0e in _thread_sys_fsync () from
/usr/lib/libc_r.so.4
(gdb) where
#0  0x28177e0e in _thread_sys_fsync () from
/usr/lib/libc_r.so.4
#1  0x2818ea24 in _thread_autoinit_dummy_decl () from
/usr/lib/libc_r.so.4
#2  0x28179222 in vfprintf () from /usr/lib/libc_r.so.4
#3  0x28169f75 in sprintf () from /usr/lib/libc_r.so.4
#4  0x80934ae in _PyString_FormatLong ()
#5  0x8093d48 in PyString_Format ()
#6  0x807b868 in PyNumber_Remainder ()
#7  0x80556a2 in PyEval_EvalCode ()
#8  0x8058d95 in PyEval_CallObjectWithKeywords ()
#9  0x80574cd in PyEval_EvalCode ()
#10 0x8058d95 in PyEval_CallObjectWithKeywords ()
#11 0x80574cd in PyEval_EvalCode ()
#12 0x8058d95 in PyEval_CallObjectWithKeywords ()
#13 0x80574cd in PyEval_EvalCode ()
#14 0x8058d95 in PyEval_CallObjectWithKeywords ()
#15 0x80574cd in PyEval_EvalCode ()
#16 0x8058d95 in PyEval_CallObjectWithKeywords ()
#17 0x80574cd in PyEval_EvalCode ()
#18 0x8058d95 in PyEval_CallObjectWithKeywords ()
#19 0x80574cd in PyEval_EvalCode ()
#20 0x80548a8 in PyEval_EvalCode ()
#21 0x806d75d in PyRun_FileExFlags ()
#22 0x806d70e in PyRun_FileExFlags ()
#23 0x806d6de in PyRun_FileExFlags ()
#24 0x806cab0 in PyRun_SimpleFileExFlags ()
#25 0x806c5b0 in PyRun_AnyFileExFlags ()
#26 0x8051795 in Py_Main ()
#27 0x80511c2 in main ()
#28 0x8051111 in _start ()
(gdb) 

----------------------------------------------------------------------

>Comment By: Jason R. Mastaler (jasonrm)
Date: 2001-12-13 21:13

Message:
Logged In: YES 
user_id=85984

Oops, the core file was too large to upload (1.5MB). 
If you want to see it, you can download it at:

http://www.mastaler.com/tmp/2001-12-13/python2.1.core

----------------------------------------------------------------------

You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=493183&group_id=5470