Re: widechar-enabled libedit problem on amd64

[Joachim Kuebart <joachim.kuebart%gmail.com@localhost>]

Am 14.01.2010 14:21, schrieb Matthias Drochner:
>
> Hi -
> a -current libedit crashes for me on amd64 if I attempt
> tabcompletion, the stacktrace is:

Hi Matthias,

I've discovered exactly the same problem today... after stepping through 
the disassembly a little, it turns out it isn't a compiler bug after all 
(phew) -- the variables actually get set to different values in the 
functions, so the values shown in your stack trace are legitimate.

However, there is a call to alloca() that is allocating too few bytes in 
fn_complete(). The following Strcpy() then overrides memory, and hence 
the SIGSEGV.

I've just filed a fix in lib/42637.

Cheers,

Joachim