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    SubjectRe: [patch] fix for buffer hash leakage
    On Fri, 19 Mar 1999, Chuck Lever wrote:
    > yes, that's exactly what i've found. i have a simple patch that i'm
    > testing on the big Dell right now, that is slightly different from yours.
    > i thought it would be better to put the forgotten buffers onto the free
    > list instead. to wit, here's my bforget():
    >
    > [ -3 lines, +2 lines, for those of you keeping track ]
    >
    > void __bforget(struct buffer_head * buf)
    > {
    > clear_bit(BH_Protected, &buf->b_state);
    > remove_from_queues(buf);
    > put_last_free(buf);
    > if (!--buf->b_count)
    > return;
    > printk("VFS: forgot an in-use buffer! (count=%d)\n",
    > buf->b_count);
    > }

    I tried this change on my dual Celeron at home here and after a few
    seconds of booting (truncating utmp and such), I got:

    Kernel Panic: Free list corrupted

    So there's probably something wrong with it somehow. :)

    Simon-

    | Simon Kirby | Systems Administration |
    | mailto:sim@netnation.com | NetNation Communications |
    | http://www.netnation.com/ | Tech: (604) 684-6892 |


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