Christian Brabandt wrote:

> On Fr, 13 Apr 2012, Thomas Dziedzic wrote:
> 
> > On Fri, Apr 13, 2012 at 9:00 AM, Taylor Hedberg <tmhedb...@gmail.com> wrote:
> > > Arch x86_64 here and I can reproduce the segfault as well. My Vim is
> > > compiled with +python but not +python3, if that makes any difference.
> > 
> > Hi,
> > 
> > I was going to report this when I had more time to debug, but since
> > people are already posting it here, I will submit what I have.
> > 
> > Yesterday I had a segfault with vim + neocomplcache turned on while
> > editing a file (reproducible).
> > The stack trace from that is at: https://gist.github.com/2377278
> > 
> > I can confirm the segfault with :python print "hello"
> > The stack trace is at: https://gist.github.com/2377276
> > 
> > They crash in the same location:
> > #0  0x00007ffff4b3f578 in memchr () from /lib/libc.so.6
> > #1  0x00000000005a96e8 in writer (fn=0x4d5f70 <msg>, str=0x0, n=2) at
> > if_py_both.h:172
> > #2  0x00000000005a9912 in OutputWrite (self=<optimized out>,
> > args=<optimized out>) at if_py_both.h:82
> 
> I really don't know the interface between Vim and python but I wonder 
> why str is null.
> This patch guards against str being Null and should therefore prevent 
> the segfault.
> However, this just means :python print "hello" won't return anything, so 
> possibly parsing the argument gets wrong somewhere before.

Avoiding a crash is always good.  But perhaps there is a better
solution?

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