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Re: segv in 21.1 on Irix

From: Richard Stallman
Subject: Re: segv in 21.1 on Irix
Date: Wed, 12 Dec 2001 16:34:22 -0700 (MST)

     warning: Warning: GDB can't find the start of the function at

This kind of thing can happen if the stack is screwed up.
If the return address is clobbered then a function can
return to a junk address.

Is 0xfb65c1c the program counter?  What sort of data is there?
Does it look like real code, or other data?  Does the memory
even exist?

If you can get an idea of what stack frames look like
(by looking at a properly running program), you may be able
to find some stack frames by hunting around through space
above the stack pointer and/or frame pointer using the `x/x ADDR'
command.  Then you can use `info frame' to examine those stack frames.

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