Question 1 is easy.
Quote:
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Kdump is a kexec based crash dumping mechansim for Linux. Kdump functionality is broken mainly in two components, user space and kernel space. Kernel space patches are already part of main line kernel tree. User space component is nothing but a patch on top of existing kexec tools.
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I got that doing a search for kdump. You can easily answer the remaining questions yourself using the same method.
jdk
