Ivan Zakharyaschev <i...@altlinux.org> added the comment:
The traceback:
[builder@localhost ~]$ python -c 'x = ("a", "b") * 2**20; x *= 2**20'
Segmentation fault (core dumped)
[builder@localhost ~]$ gdb python core.23284
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Reading symbols from python...Reading symbols from
/usr/lib/debug/usr/bin/python2.7.debug...done.
done.
warning: core file may not match specified executable file.
[New LWP 23284]
Warning: couldn't activate thread debugging using libthread_db: Cannot find new
threads: generic error
Warning: couldn't activate thread debugging using libthread_db: Cannot find new
threads: generic error
warning: Unable to find libthread_db matching inferior's thread library, thread
debugging will not be available.
Warning: couldn't activate thread debugging using libthread_db: Cannot find new
threads: generic error
Warning: couldn't activate thread debugging using libthread_db: Cannot find new
threads: generic error
warning: Unable to find libthread_db matching inferior's thread library, thread
debugging will not be available.
Core was generated by `python -c x = ("a", "b") * 2**20; x *= 2**20'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 tuplerepeat (a=0xf694301c, n=1048576) at Objects/tupleobject.c:503
503 *p = items[j];
(gdb) bt
#0 tuplerepeat (a=0xf694301c, n=1048576) at Objects/tupleobject.c:503
#1 0xf7546d47 in sequence_repeat (n=0x80a83ac, seq=0xf694301c,
repeatfunc=0xf75b24a0 <tuplerepeat>) at Objects/abstract.c:1210
#2 PyNumber_InPlaceMultiply (v=0xf694301c, w=0x80a83ac) at
Objects/abstract.c:1374
#3 0xf7602ff8 in PyEval_EvalFrameEx (f=<optimized out>, throwflag=<optimized
out>) at Python/ceval.c:1653
#4 0xf7608fee in PyEval_EvalCodeEx (co=0xf71a8ba8, globals=0xf7240714,
locals=0xf7240714, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:3589
#5 0xf760916e in PyEval_EvalCode (co=0xf71a8ba8, globals=0xf7240714,
locals=0xf7240714) at Python/ceval.c:669
#6 0xf762c508 in run_mod (arena=0x8068320, flags=0xffa1a82c,
locals=0xf7240714, globals=0xf7240714, filename=0xf765fec9 "<string>",
mod=<optimized out>) at Python/pythonrun.c:1376
#7 PyRun_StringFlags (str=0x804b160 "x = (\"a\", \"b\") * 2**20; x *=
2**20\n", start=257, globals=0xf7240714, locals=0xf7240714, flags=0xffa1a82c)
at Python/pythonrun.c:1339
#8 0xf762e160 in PyRun_SimpleStringFlags (command=0x804b160 "x = (\"a\",
\"b\") * 2**20; x *= 2**20\n", flags=0xffa1a82c) at Python/pythonrun.c:974
#9 0xf764498e in Py_Main (argc=<optimized out>, argv=<optimized out>) at
Modules/main.c:589
#10 0x080484f7 in main (argc=3, argv=0xffa1a974) at Modules/python.c:20
(gdb) quit
[builder@localhost ~]$
It was built like this --
http://git.altlinux.org/tasks/archive/done/_188/193020/build/100/i586/log :
i586-alt-linux-gcc -pthread -c -fno-strict-aliasing -pipe -Wall -g -O3
-march=i586 -mtune=generic -DNDEBUG -pipe -Wall -g -O3 -march=i586
-mtune=generic -I. -IInclude -I./Include -fPIC -DPy_BUILD_CORE -o
Objects/tupleobject.o Objects/tupleobject.c
The same happens with gcc7-7.3.1-alt3 here --
http://git.altlinux.org/tasks/202598/build/100/i586/log .
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<https://bugs.python.org/issue33153>
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