Backtrace showing different value from stack?

[Andrew Haley]

Philipp Marek wrote:

> Note: it's entirely possible that I'm trashing the stack somewhere. I'd
> just like to know why GDB shows something different for "bt" and the
> "manual" stack dump.

gdb uses a bunch of heuristics along with the debug information
to do its backtraces.  These heuristics don't always work, and the
debug information might be incorrect.

Andrew.