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<HTML><HEAD> <TITLE>BBS水木清华站∶精华区</TITLE></HEAD><BODY><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER>发信人: CuteGuy (这个春天有点冷), 信区: Linux <BR>标 题: Potential problem with kernel 2.2.4 <BR>发信站: BBS 水木清华站 (Thu Mar 25 09:53:20 1999) WWW-POST <BR> <BR>Potential problem with kernel 2.2.4
<BR> Mar 24th, 11:57:19
<BR>
<BR> Linus Torvalds has released a one-liner fix to
<BR> the 2.2.4 kernel, which contains a bug that might
<BR> cause problems on heavily loaded servers.
<BR>
<BR> Linus writes:
<BR>
<BR> There's a potential problem under certain load
<BR> conditions with 2.2.4, which should be fixed by
<BR> this one-liner. If you have trouble with 2.2.4
<BR> (apart from the obvious one where you have to
<BR> add ", NULL" to two places in kernel/acct.c),
<BR> would you try this simple thing?
<BR>
<BR> Note that I _really_ want to hear about if if
<BR> this makes any difference at all. It's a real
<BR> bug, but I think it needs some rather pathological
<BR> usage patterns to actually become a real problem.
<BR> So I'd like to know if it actually makes a difference
<BR> in real life...
<BR>
<BR> Linus
<BR>
<BR> -----
<BR> --- v2.2.4/linux/fs/buffer.c Tue Mar 23 14:35:48 1999
<BR> +++ linux/fs/buffer.c Wed Mar 24 09:11:53 1999
<BR> @@ -854,6 +854,7 @@
<BR> return;
<BR> }
<BR> remove_from_queues(buf);
<BR> + buf->b_count = 0;
<BR> put_last_free(buf);
<BR> }
<BR>
<BR>
<BR>Return to today's headlines.
<BR> <BR>-- <BR> ^\ ..... ( ^ ) ..... /^ <BR> ^-^ ^^^^^^ { 0 0 } ^^^^^^ ^-^ <BR> ^ ^^ ( @ ) ^^ ^ <BR> " <BR> I am back from hell <BR> Tears still leave in heaven <BR> <BR>※ 来源:·BBS 水木清华站 bbs.net.tsinghua.edu.cn·[FROM: 202.115.16.18] <BR><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER></BODY></HTML>
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