[exim-dev] [Bug 927] segfault around group_list

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Συντάκτης: Phil Pennock
Ημερομηνία:  
Προς: exim-dev
Καινούρια Θέματα: Re: [exim-dev] [Bug 927] segfault around group_list
Αντικείμενο: [exim-dev] [Bug 927] segfault around group_list
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http://bugs.exim.org/show_bug.cgi?id=927

Phil Pennock <exim-dev@???> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |LATER





--- Comment #14 from Phil Pennock <exim-dev@???> 2009-12-11 10:49:42 ---
Okay, Christian kindly provided me with access to the corefile.

It really is dead on the first line of main(), since the initialisations of the
function automatic-scope variables in main() don't happen and they're random
garbage. (Unless there's a reason for arg_smtp_receive_timeout to be set to
4812437 via the -os option to Exim).

So the segfault is happening during library loading.

Is it an artifact of the transfer to the Debian-derivative system that the
binary appears to be linked against two different versions of GnuTLS?

Both GnuTLS *and* OpenSSL linked into the same binary?

I think that:
1: exim queue-runners can run quite often, so if there's much mail in the
queue then there's a statistically higher chance of Exim showing up a system
problem than some other random process, and queue-runners will be the most
frequently run
2: this is dying too soon to be anything wrong in the Exim code
3: you're better off chasing the architecture maintainers to help you diagnose
what's going on with the library init and see if there's a way, other than
iterating through "linked in feature X but not feature X" to determine which
libraries are triggering this?

I'm not closing the bug completely yet. Perhaps there's something Exim could
be doing better to help prevent this; compiling with some other gcc options on
your platform, for instance, but I don't think there's anything the Exim devs
can do to help at his time. Sorry.


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