7fa73ec70f
kdump now dumps vmcore to root partition by default in SAVE_PATCH directory, e.g /var/crash defaultly. This is problematic when another disk is mounted on /var or /var/crash, because the saved vmcore will he hidden after dump in 1st kernel. This also has the potential of blindly filling the root file system without a clue as to why. Now fix this by failing the loading of kdump kernel if dump target is root fs by default while different disk is mounted on save path. Signed-off-by: Baoquan He <bhe@redhat.com> Acked-by: Vivek Goyal <vgoyal@redhat.com>
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