[Bug binutils/30150] addr2line returns wrong results after several thousands of requests in pipe mode

[nickc at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=30150

Nick Clifton <nickc at redhat dot com> changed:

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                 CC|                            |nickc at redhat dot com

--- Comment #11 from Nick Clifton <nickc at redhat dot com> ---
(In reply to Lev Veyde from comment #0)
Hi Lev,

> It seems that after a few thousands of results (normally over 3000-4000) the
> addr2line in pipe mode (with -fie option) begins to randomly return
> incorrect results.

How exactly is addr2line being run ?  Can you provide an example command line ?

> Most frequently it begins to return file names for addresses of symbols
> which have not been defined in source files, that is instead of the expected
> ??:?

Have you tried compiling addr2line with address sanitization enabled ?  Or
running it under valgrind ?  Given the description of the problem it sounds
like some kind of memory problem/buffer overrun issue.

Cheers
  Nick

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