[systemd-devel] systemd segfaulting after commit 877d54e9b09e093c2102f519a84e2a52637ae035

[Allin Cottrell]

On Sun, 23 Sep 2012, Colin Walters wrote:

> On Sat, 2012-09-22 at 16:34 -0700, Khem Raj wrote:
>
>> git bisect tells me that its happening due to
>>
>> commit 877d54e9b09e093c2102f519a84e2a52637ae035
>> Author: Lennart Poettering <lennart at poettering.net>
>> Date:   Fri Aug 24 22:21:20 2012 +0200
>>
>>     journal: generate structured journal messages for a number of events
>>
>>
>> I am using gcc 4.7.2 + glibc 2.16 + binutils 2.22 + kernel 3.4.10
>
> I get this too in GNOME-OSTree (fork of Poky edison, gcc 4.6, eglibc
> 2.13).
>
> I had been thinking it was
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47025 [...]

I think it's
https://bugs.freedesktop.org/show_bug.cgi?id=55213

The reporter explains clearly that the new journald code 
invokes undefined behavior in relation to vsnprintf() and 
vasprintf(): it may work on some systems but in general cannot 
be relied upon to work, and it segfaults on some systems. The 
reporter also provides a patch.

-- 
Allin Cottrell
Department of Economics
Wake Forest University, NC