[Python-Dev] crash in 3.0b2 exception code

[Stefan Behnel]

Hi,

I get a crash in one of lxml's doctests in 3.0b2, and it looks like it's
coming from plain Python code (as opposed to Cython code). Just a quick check
before I start digging into this, has anyone seen this before?

Stefan

[...]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1209997120 (LWP 15431)]
0x080f3b89 in BaseException_str (self=0x8d747d4) at Objects/exceptions.c:88
88          switch (PyTuple_GET_SIZE(self->args)) {
(gdb) bt
#0  0x080f3b89 in BaseException_str (self=0x8d747d4) at Objects/exceptions.c:88
#1  0x0805b158 in PyObject_Str (v=0x8d747d4) at Objects/object.c:414
#2  0x0807951a in unicode_new (type=0x81523a0, args=0x8de77ac, kwds=0x0) at
Objects/unicodeobject.c:9247
#3  0x0806068d in type_call (type=0x81523a0, args=0x8de77ac, kwds=0x0) at
Objects/typeobject.c:636
#4  0x080d83a9 in PyObject_Call (func=0x81523a0, arg=0x8de77ac, kw=0x0) at
Objects/abstract.c:2178
#5  0x0808de50 in PyEval_EvalFrameEx (f=0x8e2d07c, throwflag=0) at
Python/ceval.c:3606
#6  0x0808fccd in PyEval_EvalFrameEx (f=0x8e2bf14, throwflag=0) at
Python/ceval.c:3481
#7  0x0808fccd in PyEval_EvalFrameEx (f=0x8e2cef4, throwflag=0) at
Python/ceval.c:3481
#8  0x0808fccd in PyEval_EvalFrameEx (f=0x8e2d4ec, throwflag=0) at
Python/ceval.c:3481
#9  0x08090f6b in PyEval_EvalCodeEx (co=0x8268458, globals=0xb7c182d4,
locals=0x0, args=0x8e2cea4, argcount=3, kws=0x8e2ceb0, kwcount=1,
defs=0x826c678, defcount=3, kwdefs=0x0,
    closure=0x0) at Python/ceval.c:2830
[...]