"M.-A. Lemburg" wrote:
>
> Neal Norwitz wrote:
>
> > "M.-A. Lemburg" wrote:
> >
> >
> >>I've checked in a patch for the UTF-8 codec problem. Could you
> >>try Purify against the CVS version ?
> >>
> >
> > with-pymalloc or without or both?
>
> Both if possible -- the leakage showed up with pymalloc AFAIR :-)
There is a lot of data and it's very hard to follow,
but I'm trying to provide as much info as I can.
Let me know how I can make this info easier to use.
Here is a summary:
* I'm using gcc version 2.95.3, on Solaris 8, Purify 2002.
* The new patches don't fix all the problems, but it may
reduce the problems (I'm not sure). I think there were
13k errors on build before, it's 5.5k now.
* test_unicodedata fails:
*** mismatch between line 3 of expected output and
line 3 of actual output:
- Methods: 6c7a7c02657b69d0fdd7a7d174f573194bba2e18
+ Methods: 3051e6d4d117133c3e36a5c22b3a1ae362474321
* Purify now has 2 UMRs now w/o pymalloc, but they are in
fwrite() and contain no usable stack trace.
* It's probably best to try using Electric Fence and/or dbmalloc.
This may give better results than Purify.
* There is a warning from sre.h that may be significant:
Modules/sre.h:24: warning: `SRE_CODE' redefined
Modules/sre.h:19: warning: this is the location
of the previous definition
I'll try some more things to see if I can get better info.
Neal
--
bash-2.03$ ./configure --with-pymalloc --enable-unicode=ucs4
bash-2.03$ make PURIFY=purify
---> 5542 errors
Free Memory Read, Array Bounds Read, and Uninit Memory Read errors
at lines unicodeobject.c:2214 & 2875
(both are bogus lines)
2214 is in: PyUnicode_TranslateCharmap()
2875 is in: split_char()
bash-2.03$ ./python -E -tt Lib/test/regrtest.py test_unicode.py \
test_unicode_file.py test_unicodedata.py
test_unicode
test test_unicode crashed -- exceptions.UnicodeError: UTF-8 decoding error: illegal encoding
test_unicode_file
test_unicodedata
test test_unicodedata produced unexpected output:
**********************************************************************
*** mismatch between line 3 of expected output and line 3 of actual output:
- Methods: 6c7a7c02657b69d0fdd7a7d174f573194bba2e18
+ Methods: 3051e6d4d117133c3e36a5c22b3a1ae362474321
**********************************************************************
1 test OK.
2 tests failed:
test_unicode test_unicodedata
--------------------------------------------------------------------
Without purify, test_unicode completed successfully, but unicodedata
produced the same results.
The errors produced in purify for these 3 tests were 99745.
The errors were in the same places as for the build step.
--------------------------------------------------------------------
bash-2.03$ make clean
bash-2.03$ ./configure --enable-unicode=ucs4
bash-2.03$ make PURIFY=purify
bash-2.03$ ./python -E -tt Lib/test/regrtest.py test_unicode.py \
test_unicode_file.py test_unicodedata.py
test test_unicodedata produced unexpected output:
**********************************************************************
*** mismatch between line 3 of expected output and line 3 of actual output:
- Methods: 6c7a7c02657b69d0fdd7a7d174f573194bba2e18
+ Methods: 84b72943b1d4320bc1e64a4888f7cdf62eea219a
**********************************************************************
2 tests OK.
1 test failed:
test_unicodedata
--------------------------------------------------------------------
Purify did have 2 UMRs, but both contain almost no information:
UMR: Uninitialized memory read
This is occurring while in:
_write [libc.so.1]
_xflsbuf [libc.so.1]
_fflush_u [libc.so.1]
fseek [libc.so.1]
*unknown func* [pc=0xe417c]
*unknown func* [pc=0xe4db4]
*unknown func* [pc=0xe64c4]
*unknown func* [pc=0xe5cf0]
*unknown func* [pc=0xe5524]
*unknown func* [pc=0xe58a0]
*unknown func* [pc=0x160464]
*unknown func* [pc=0x159b64]
Reading 3609 bytes from 0x6a2fcc in the heap (4 bytes at 0x6a3706 uninit).
Address 0x6a2fcc is 4 bytes into a malloc'd block at 0x6a2fc8 of 8200 bytes.
This block was allocated from:
do_mkvalue [modsupport.c:243]
_findbuf [libc.so.1]
_wrtchk [libc.so.1]
_flsbuf [libc.so.1]
putc [libc.so.1]
*unknown func* [pc=0xe8b9c]
*unknown func* [pc=0xed794]
*unknown func* [pc=0xe4104]
*unknown func* [pc=0xe4db4]
*unknown func* [pc=0xe64c4]
*unknown func* [pc=0xe5cf0]
*unknown func* [pc=0xe5524]
--------------------------------------------------------------------
UMR: Uninitialized memory read
This is occurring while in:
_write [libc.so.1]
_xflsbuf [libc.so.1]
_fwrite_unlocked [libc.so.1]
fwrite [libc.so.1]
*unknown func* [pc=0xeaa50]
*unknown func* [pc=0xeadf4]
*unknown func* [pc=0xeb3c8]
*unknown func* [pc=0xed7e8]
*unknown func* [pc=0xe411c]
*unknown func* [pc=0xe4db4]
*unknown func* [pc=0xe64c4]
*unknown func* [pc=0xe5cf0]
Reading 8192 bytes from 0x79d88c in the heap (4 bytes at 0x79de8d uninit).
Address 0x79d88c is 4 bytes into a malloc'd block at 0x79d888 of 8200 bytes.
This block was allocated from:
do_mkvalue [modsupport.c:243]
_findbuf [libc.so.1]
_wrtchk [libc.so.1]
_flsbuf [libc.so.1]
putc [libc.so.1]
*unknown func* [pc=0xe8b9c]
*unknown func* [pc=0xed794]
*unknown func* [pc=0xe4104]
*unknown func* [pc=0xe4db4]
*unknown func* [pc=0xe64c4]
*unknown func* [pc=0xe5cf0]
*unknown func* [pc=0xe5524]
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