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SubjectRe: Anyone working on multi-threaded core files for 2.4 ?


> I was aiming at the simplest and in my mind most obvious thing, which
> is to have the standard ELF coreer dump handle multiple threads in the
> same way as it does on many other systems. The lack of these causes
> shrieks of amazement from many of our customers :-(
>
> This is not rocket science, and there are already debuggers (gdb, our
> product TotalView, ...) which know how to understand such core dumps
> if only the kernel produced them.
>
> Now that the kernel has mechanisms for finding all the threads in a
> process, the actual dump writing should be relatively simple. (You
> need to write the appropriate register notes for every thread, rather
> than just one).

Maybe I'm totally stupid, but I think you need to sync the threads so that
the're in the same state. And I don't think it's that simple.

Or I'm talking totally nonsense here :)




Igmar

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