From: Pavel Machek <pavel@ucw.cz>
To: Nigel Cunningham <ncunningham@cyclades.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Freezer Patches.
Date: Thu, 2 Jun 2005 09:31:19 +0200 [thread overview]
Message-ID: <20050602073119.GC1841@elf.ucw.cz> (raw)
In-Reply-To: <1117697187.10888.138.camel@localhost>
Hi!
> > If sys_sync() is not working, *fix sys_sync()*. [BTW I see that
> > problem before and I think it is being worked on.] I'm *not* going to
> > work around it in refrigerator.
>
> I'm not saying sys_sync is broken. I _am_ saying that if you have
> processes submitting I/O while you're trying to sync, syncing will take
> longer and you may well still end up with dirty buffers at the end. On
> top of this, you may think freezing has failed because processes don't
> enter the refrigerator within your timelimit (assuming you have
> one).
Then simple launch sys_sync(), let it finish, *then* do
refrigeration. That way sys_sync() does not count to the timelimit.
Now, sys_sync() takes too long on some setups. That needs to be fixed,
anyway; users don't like to wait for 15 minutes after typing
"sync". Do not work around it in refrigerator.
Pavel
next prev parent reply other threads:[~2005-06-02 7:31 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-01 12:33 Freezer Patches Nigel Cunningham
2005-06-01 13:02 ` Pavel Machek
2005-06-01 22:02 ` Benjamin Herrenschmidt
2005-06-01 22:13 ` Nigel Cunningham
2005-06-01 22:23 ` Benjamin Herrenschmidt
2005-06-01 22:08 ` Nigel Cunningham
2005-06-01 22:31 ` Pavel Machek
2005-06-01 22:45 ` Benjamin Herrenschmidt
2005-06-01 23:02 ` Pavel Machek
2005-06-02 0:35 ` Benjamin Herrenschmidt
2005-06-02 1:46 ` Nigel Cunningham
2005-06-02 1:49 ` Benjamin Herrenschmidt
2005-06-02 1:45 ` Nigel Cunningham
2005-06-02 1:48 ` Benjamin Herrenschmidt
2005-06-02 7:14 ` Pavel Machek
2005-06-02 7:26 ` Nigel Cunningham
2005-06-02 7:31 ` Pavel Machek [this message]
2005-06-02 7:36 ` Benjamin Herrenschmidt
2005-06-02 8:18 ` Nigel Cunningham
2005-06-02 21:47 ` Pavel Machek
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