From: Robert Hancock <hancockr@shaw.ca>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [CHECKER] crash after fsync causing serious FS corruptions (ext2, 2.6.11)
Date: Mon, 07 Mar 2005 18:49:05 -0600 [thread overview]
Message-ID: <422CF681.3010109@shaw.ca> (raw)
In-Reply-To: <3FnYi-11J-1@gated-at.bofh.it>
Jens Axboe wrote:
> fsync on ext2 only really guarantees that the data has reached
> the disk, what the disk does it outside the realm of the fs.
> If the ide drive has write back caching enabled, the data just
> might only be in cache. If the power is removed right after fsync
> returns, the drive might not get a chance to actually commit the
> write to platter.
Is this really the behavior in the current kernel? If so this seems
quite wrong to me - if the application did an fsync, I think the kernel
should be sending cache flush commands to the drive before the call
completes..
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
next parent reply other threads:[~2005-03-08 0:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3Fnc7-mf-11@gated-at.bofh.it>
[not found] ` <3FnYi-11J-1@gated-at.bofh.it>
2005-03-08 0:49 ` Robert Hancock [this message]
2005-03-07 9:57 [CHECKER] crash after fsync causing serious FS corruptions (ext2, 2.6.11) Junfeng Yang
2005-03-07 10:45 ` Jens Axboe
2005-03-07 22:55 ` Junfeng Yang
2005-03-08 11:02 ` Pavel Machek
2005-03-08 11:04 ` Jens Axboe
2005-03-08 12:31 ` Theodore Ts'o
2005-03-08 20:27 ` Junfeng Yang
2005-03-20 2:00 ` Bernd Eckenfels
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