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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Symbolic tracebacks on Debian
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Date: Sat, 22 May 2010 15:56:24 +0200
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Date: 2010-05-22T15:56:24+02:00
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On Sat, 22 May 2010 15:20:34 +0200, Bj�rn Persson wrote:

> Stephen Leake wrote:
> 
>> I dump the stack trace as hex addresses, then later run addr2line
>> manually if I want the symbolic trace.
> 
> That's what I'm doing and it's not helping. I'm trying to find out why my 
> email doorkeeper daemon sometimes crashes. I write the addresses to the log, 
> but when I pass them to addr2line it resolves ony those that are in my own 
> code. The crashes seem to happen somewhere in one of the libraries I use, 
> and addr2line returns only question marks for those addresses. I don't know 
> why. Perhaps it doesn't understand separate debug information files?

That is the biggest problem when dealing with Gtk. This is why I integrated
symbolic traceback into the GtkAda contributions + trapping of all log
events of the Gtk. When Gtk logs an event (error, warning), I trace the
stack at once. At this point it is still traceable. C stuff is shown as
???, but the Ada's caller's chain is OK. If you let it go further, it would
crash in 80% cases, and the addresses will be guaranteed rubbish at that
point.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de