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Re: Kernel debugging


On Thursday 19 December 2013 13:51:36 Nikos Balkanas wrote:
> I am developing a module for the Linux kernel. For that i have setup
> the exact environment in Virtual Box and have loaded the (guest)
> kernel with -g and removed the -frame-pointers. I will run gdb from
> host and try to debug kernel on guest system.
> 
> What is the best approach for this scenario? GDBserver or gdbstubs?.
> Gdb server is good only for userspace debugging. Will gdbstubs work?
> Are they included in the recent gdb sources, or are the ones to use
> since 2003 from sourceforge? I am also looking for instructions on how
> to implement them. Any hints?

the kernel has a built in gdb stub.  look for "kgdb" in the 
documentation/kconfig.
-mike

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