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    SubjectRe: riscv32 EXT4 splat, 6.8 regression?
    On Sat, Apr 13, 2024 at 10:04:57PM -0400, Theodore Ts'o wrote:
    > On Sat, Apr 13, 2024 at 07:46:03PM -0600, Andreas Dilger wrote:
    > > This looks like a straight-forward mathematical substitution of "dlimit"
    > > with "search_buf + buf_size" and rearranging of the terms to make the
    > > while loop offset "zero based" rather than "address based" and would
    > > avoid overflow if "search_buf" was within one 4kB block of overflow:
    > >
    > > dlimit = search_buf + buf_size = 0xfffff000 + 0x1000 = 0x00000000
    >
    > Umm... maybe, but does riscv32 actually have a memory map where a
    > kernel page would actually have an address in high memory like that?
    > That seems.... unusual.

    Would instanty break IS_ERR() and friends. And those are arch-independent.

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