Hi, AKASHI > >To place "elfcorehdr=" or "memmap="/"usable-memory=" into the command > >line, one needs to know where it is valid to place it. Appending doesn't > >always work, as per the example above with 51e158c12aca3c9a. > > So, are you now suggesting that we put both "elfcorehdr=" and > "usable-memory=" under /chosen in dtb? That's fair enough. > (as far as nobody cares about incompatibility with other archs.) You may need move is_kdump_kernel as a weak function so that in arm64 you can still use it in kdump kernel. Thanks Dave