[I'm not sure what you are doing but...]
Robert Lunnon bobNoSpaM@yarrabee.net.au writes:
Here is what the Sun man page says about Ptrace, with
apologies to sun, you
can find this page at docs.sun.com. Not the comment for
call 0 (TRACEME) and
ESRCH in the error section
But there has to be some way to attach to a running process.
Yes, ptrace(PTRACE_ATTACH, ...) should work I believe. Haven't tried though.
What happens when you do an attach in gdb? Does it do a ptrace?
I'm not sure. Here is a trace of gdb trying to attach to a bash process (pid 11664).