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# Strategies
* [[GDB]] -- the GNU debugger
* [[gdb/Backtrace]]s
* [[subhurd]] -- running another Hurd system in parallel
* In context of [[glibc/debugging/ld_so_console]]: [[!message-id
"20111108190129.750BC2C098@topped-with-meat.com"]]
* [[rpctrace]] -- tracing [[RPC]]s
* [[microkernel/mach/gnumach/interface/syscall/mach_print]] sycall
# About Specific Packages
* [[glibc]]
* [[translator]]s
* [[trap_in_the_kernel]]
# IRC, freenode, #hurd, 2013-06-30
<hacklu> braunr: I don't understand your question totally, but I want to
know how do you do this inspecting? <braunr> i have a small test program
that creates a thread, and inspect its state before any thread dies
<braunr> i use portinfo
<braunr> and rpctrace
<braunr> (there is also vminfo but you're not likely to need it for what
you're doing right now)
<hacklu> I have used rpctrace before, but portinfo, I will try it.
<hacklu> is portinfo show a process's all port use log?
<braunr> not log
<braunr> current state
<hacklu> dump the port name space?
<braunr> yes
<hacklu> I found some names are not continuous. how this come out?
<braunr> continuous ?
<hacklu> 101:send 103:send
<hacklu> missing 102
<braunr> some are freed
<braunr> a lot actually
<braunr> every RPC needs a reply port
<braunr> a temporary receive right to get replies from servers
<hacklu> so we can reuse the name which are freed before
<braunr> of course
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