From: Jeff Garzik <jgarzik@pobox.com>
To: Ryan Earl <heretic@clanhk.org>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
linux-ide@vger.kernel.org
Subject: Re: siimage.c -serious- error fixed. Performance/stability issues resolved.
Date: Tue, 02 Dec 2003 19:06:24 -0500 [thread overview]
Message-ID: <3FCD2900.1020002@pobox.com> (raw)
In-Reply-To: <33385.209.163.161.49.1070400815.squirrel@mail.clanhk.org>
Ryan Earl wrote:
> The 15KB request buffer "fix"--*ahem* workaround--never addressed the real
> issue. You want to get rid of all the 15KB hoocus-poocus. All that does
> is kill your disk performance, it never solved the problem, merely made
> your system more stable with the problem still around. Essentially, you
> should never have that buffer set to 15KB and with this fix all that noise
> should just disappear from the driver/kernel.
Not correct.
As has been discussed many times, with certain Seagate drives,
sector_count % 15 == 1 && sector_count != 1
causes failure.
This is what the 15KB limit addresses. Read libata SII driver for more
info.
Jeff
next prev parent reply other threads:[~2003-12-03 0:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-02 10:57 siimage.c -serious- error fixed. Performance/stability issues resolved Ryan Earl
2003-12-02 19:16 ` Bartlomiej Zolnierkiewicz
2003-12-02 21:33 ` Ryan Earl
2003-12-02 23:32 ` Bartlomiej Zolnierkiewicz
2003-12-03 0:30 ` Ryan Earl
2003-12-03 0:06 ` Jeff Garzik [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-12-02 10:36 Ryan Earl
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