On 3 Mar 2000, Linus Torvalds wrote:
> > if (atomic_read(&buf->b_count)) {
> > atomic_dec(&buf->b_count);
> > return;
> > }
> I don't think it has caught anybody in the last few years, but it's
> certainly cheap enough, so..
i've certainly seen it during development of buffer-cache/IO related
patches. b_count usage bugs trigger this debugging message so
deterministically that i believe they get fixed prior seeing any official
kernel. I'd suggest a patch like this to make the situation clearer:
- printk("VFS: brelse: Trying to free free buffer\n");
+ BUG();
-- mingo
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This archive was generated by hypermail 2b29 : Tue Mar 07 2000 - 21:00:19 EST