From: Jens Axboe <axboe@suse.de>
To: "C.Y.M." <syphir@syphir.sytes.net>
Cc: linux-kernel@vger.kernel.org, Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: Changes to ide-probe.c in 2.6.9-rc2 causing improper detection
Date: Tue, 14 Sep 2004 08:06:29 +0200 [thread overview]
Message-ID: <20040914060628.GC2336@suse.de> (raw)
In-Reply-To: <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA9mKu6AlYok2efOpJ3sb3O+KAAAAQAAAAjtLAU+gqyUq8AePOBiNtXQEAAAAA@syphir.sytes.net>
On Mon, Sep 13 2004, C.Y.M. wrote:
> After installing 2.6.9-rc2 on my PC today (x86 VIA Chipset motherboard and
> Athlon XP CPU), The IDE detection during boot in probing for ide2-5 and
> displaying errors, and the hard drives that it does find are telling me that
> "hda: cache flushes not supported" (when they are displayed as supported
> when using 2.6.9-rc1.
Your drive doesn't advertise FLUSH_CACHE support, the model for when we
use these commands changed between -rc1 and -rc2. This essentially means
that you have to turn off write back caching for safe operations on a
journalled drive.
Alan, I bet there are a lot of these. Maybe we should consider letting
the user manually flag support for FLUSH_CACHE, at least it is in their
hands then.
--
Jens Axboe
next prev parent reply other threads:[~2004-09-14 6:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-14 2:26 Changes to ide-probe.c in 2.6.9-rc2 causing improper detection C.Y.M.
2004-09-14 6:06 ` Jens Axboe [this message]
2004-09-14 7:03 ` C.Y.M.
2004-09-14 7:06 ` Jens Axboe
2004-09-14 7:15 ` Jens Axboe
2004-09-14 8:20 ` C.Y.M.
2004-09-14 8:28 ` Jens Axboe
2004-09-14 10:09 ` Alan Cox
2004-09-14 11:12 ` Jens Axboe
2004-09-14 10:35 ` Alan Cox
2004-09-14 11:43 ` Jens Axboe
2004-09-14 11:19 ` Alan Cox
2004-09-14 12:21 ` Jens Axboe
2004-09-14 11:37 ` Gene Heskett
2004-09-14 10:07 ` Alan Cox
2004-09-14 11:11 ` Jens Axboe
2004-09-14 11:59 ` Bartlomiej Zolnierkiewicz
2004-09-14 13:15 ` Jens Axboe
2004-09-14 10:05 ` Alan Cox
2004-09-14 11:09 ` Jens Axboe
2004-09-14 12:07 ` Bartlomiej Zolnierkiewicz
2004-09-14 15:18 ` Jeff Garzik
2004-09-14 15:25 ` Jens Axboe
2004-09-14 15:05 ` Alan Cox
2004-09-14 15:33 ` Mark Lord
2004-09-14 15:39 ` Mark Lord
2004-09-14 15:51 ` Jeff Garzik
2004-09-14 15:06 ` Alan Cox
2004-09-14 15:45 ` Jeff Garzik
2004-09-14 15:31 ` Mark Lord
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