From: Chris Mason <mason@suse.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Jens Axboe <axboe@suse.de>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ext3 barrier bits
Date: Sat, 22 May 2004 15:31:33 -0400 [thread overview]
Message-ID: <1085254293.9467.5026.camel@watt.suse.com> (raw)
In-Reply-To: <20040522011139.01a7da10.akpm@osdl.org>
On Sat, 2004-05-22 at 04:11, Andrew Morton wrote:
> May as well cc lkml on this. It's to do with the disk write barrier
> implementation.
> - Does reiserfs support `mount -o remount,barrier=flush'? and "=none"?
>
Yes...there are no messages to clue the user in, but it does happen.
> - How do I test the "oh, barriers aren't working" fallback code in ext3?
>
Jens suggested mounting with barriers on for scsi, that's what I've been
doing. I also did some crash tests on scsi to make sure the io really
is happening when barriers fail.
-chris
prev parent reply other threads:[~2004-05-22 19:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20040521093207.GA1952@suse.de>
[not found] ` <20040521023807.0de63c7a.akpm@osdl.org>
[not found] ` <20040521100234.GK1952@suse.de>
[not found] ` <20040521235044.6160cccb.akpm@osdl.org>
[not found] ` <20040522073540.GO1952@suse.de>
2004-05-22 8:11 ` Andrew Morton
2004-05-22 8:24 ` Arjan van de Ven
2004-05-22 8:33 ` Andrew Morton
2004-05-22 19:15 ` Chris Mason
2004-05-22 8:43 ` Jens Axboe
2004-05-22 8:42 ` Jens Axboe
2004-05-22 19:31 ` Chris Mason [this message]
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