From: Andrew Morton <akpm@zip.com.au>
To: Jens Axboe <axboe@suse.de>
Cc: Marcelo Tosatti <marcelo@conectiva.com.br>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: Linux v2.4.19-rc5
Date: Thu, 01 Aug 2002 02:02:13 -0700 [thread overview]
Message-ID: <3D48F915.3FADA08F@zip.com.au> (raw)
In-Reply-To: 20020801081010.GA1096@suse.de
Jens Axboe wrote:
>
> ...
> > Anyway, lets wait for the numbers.
>
> It just 'feels' like the sort of change that might have odd side
> effects.
It's almost impossible to get READA to do anything. For example, in
current 2.5, if a READA attempt is actually aborted, end_buffer_io_sync
reports a "buffer I/O error". Every time. And nobody has reported this.
It _is_ possible to hit this in 2.5, because of ext2_preread_inode().
Probably, also it's possible to hit it in 2.4 with hundreds of processes
all issuing ext3 directory readahead. But it's pretty remote.
next prev parent reply other threads:[~2002-08-01 8:49 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-01 6:38 Linux v2.4.19-rc5 Marcelo Tosatti
2002-08-01 7:49 ` Jens Axboe
2002-08-01 7:14 ` Marcelo Tosatti
2002-08-01 8:10 ` Jens Axboe
2002-08-01 9:02 ` Andrew Morton [this message]
2002-08-01 8:58 ` Jens Axboe
2002-08-01 14:45 ` Steven Cole
2002-08-01 18:57 ` Andrew Morton
2002-08-01 20:15 ` Steven Cole
2002-08-06 3:46 ` Bill Davidsen
2002-08-06 4:30 ` Andrew Morton
2002-08-06 14:07 ` Steven Cole
2002-08-06 14:20 ` Rik van Riel
2002-08-06 17:12 ` Andrew Morton
2002-08-06 5:42 ` Jens Axboe
2002-08-06 8:30 ` Adrian Bunk
2002-08-06 8:48 ` Jens Axboe
2002-08-06 10:31 ` Lincoln Dale
2002-08-06 12:59 ` Rik van Riel
2002-08-07 1:09 ` Bill Davidsen
2002-08-07 2:54 ` Steven Cole
2002-08-07 22:30 ` Bill Davidsen
2002-08-07 22:39 ` Rik van Riel
2002-08-07 23:44 ` Bill Davidsen
2002-08-07 23:53 ` Rik van Riel
2002-08-09 17:46 ` Bill Davidsen
2002-08-09 19:27 ` Rik van Riel
2002-08-01 7:55 ` Keith Owens
2002-08-01 8:10 ` Jens Axboe
2002-08-04 6:50 ` H. Peter Anvin
2002-08-01 11:32 ` Willy TARREAU
2002-08-01 13:54 ` Alan Cox
2002-08-01 12:48 ` Willy TARREAU
2002-08-01 12:12 ` Linux v2.4.19-rc5 - APM bug Willy TARREAU
2002-08-01 13:32 ` [PANIC] APM bug with -rc4 and -rc5 Willy TARREAU
2002-08-01 14:55 ` Alan Cox
2002-08-01 13:56 ` Willy Tarreau
2002-08-01 15:24 ` Willy Tarreau
2002-08-01 16:53 ` Alan Cox
2002-08-01 16:41 ` Willy Tarreau
2002-08-01 20:35 ` [PATCH] solved APM bug with -rc5 Willy TARREAU
2002-08-01 20:52 ` Richard Gooch
2002-08-01 20:54 ` Richard Gooch
2002-08-01 21:17 ` Willy TARREAU
2002-08-01 22:37 ` Alan Cox
2002-08-01 20:58 ` Dave Jones
2002-08-01 22:16 ` Alan Cox
2002-08-01 21:07 ` Willy Tarreau
2002-08-01 21:47 ` Linus Torvalds
2002-08-02 0:12 ` [PATCH] solved APM bug with -rc5 (take 2) Willy TARREAU
2002-08-02 1:47 ` [PATCH] pdc20265 problem Nick Orlov
2002-08-02 2:29 ` Nick Orlov
2002-08-02 12:27 ` Alan Cox
2002-08-02 12:52 ` Nick Orlov
2002-08-02 14:00 ` Bartlomiej Zolnierkiewicz
2002-08-02 14:45 ` Nick Orlov
-- strict thread matches above, loose matches on Subject: below --
2002-08-06 4:36 Linux v2.4.19-rc5 rwhron
2002-08-07 3:00 ` Bill Davidsen
2002-08-06 20:12 Peter Wong
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