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    SubjectRe: [PATCH 4/5] printk: use alloc_bootmem() instead of memblock_alloc().
    > that seems not right.
    > for x86, setup_log_buf(1) is quite early called in setup_arch() before
    > bootmem is there.
    > bootmem should be killed after memblock is supported for arch that
    > current support bootmem.

    Hmm. x86 uses nobootmem.c, which implements bootmem in terms of
    memblock anyway. It is definitely working at setup_log_buf() time (or
    else it wouldn't be able to select a sensible buffer location).

    I suppose you're saying that it wouldn't work for a hypothetical
    architecture that *does* support bootmem and *also* supports
    setup_log_buf(1). Will there ever be such an architecture, or will
    bootmem be retired first?



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