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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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