From: Dan Malek <dan@embeddededge.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs.org>,
linuxppc64-dev <linuxppc64-dev@ozlabs.org>,
Chris Friesen <cfriesen@nortel.com>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: question on symbol exports
Date: Mon, 7 Feb 2005 18:42:24 -0500 [thread overview]
Message-ID: <bc4f2e60770528d4934b5a2e69285002@embeddededge.com> (raw)
In-Reply-To: <1107812101.7734.42.camel@gaston>
On Feb 7, 2005, at 4:35 PM, Benjamin Herrenschmidt wrote:
> Interesting... more than no swap, you must also make sure you have no
> r/w mmap'ed file (which are technically equivalent to swap).
Yeah, I kinda had a similar thought. Just because you aren't
swapping doesn't mean the VM subsystem isn't looking at dirty bits,
too. It could potentially steal a page that it thinks can be replaced
from either a zero-fill or reading again from persistent storage.
-- Dan
WARNING: multiple messages have this Message-ID (diff)
From: Dan Malek <dan@embeddededge.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc64-dev <linuxppc64-dev@ozlabs.org>,
Arjan van de Ven <arjan@infradead.org>,
linuxppc-dev list <linuxppc-dev@ozlabs.org>,
Chris Friesen <cfriesen@nortel.com>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: question on symbol exports
Date: Mon, 7 Feb 2005 18:42:24 -0500 [thread overview]
Message-ID: <bc4f2e60770528d4934b5a2e69285002@embeddededge.com> (raw)
In-Reply-To: <1107812101.7734.42.camel@gaston>
On Feb 7, 2005, at 4:35 PM, Benjamin Herrenschmidt wrote:
> Interesting... more than no swap, you must also make sure you have no
> r/w mmap'ed file (which are technically equivalent to swap).
Yeah, I kinda had a similar thought. Just because you aren't
swapping doesn't mean the VM subsystem isn't looking at dirty bits,
too. It could potentially steal a page that it thinks can be replaced
from either a zero-fill or reading again from persistent storage.
-- Dan
next prev parent reply other threads:[~2005-02-07 23:42 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-01 0:15 question on symbol exports Chris Friesen
2005-02-01 7:36 ` Arjan van de Ven
2005-02-01 15:37 ` Chris Friesen
2005-02-01 15:50 ` Arjan van de Ven
2005-02-01 17:00 ` Chris Friesen
[not found] ` <20050204203050.GA5889@dmt.cnet>
2005-02-04 20:14 ` Chris Friesen
2005-02-04 20:14 ` Chris Friesen
2005-02-05 9:19 ` Benjamin Herrenschmidt
2005-02-05 9:19 ` Benjamin Herrenschmidt
2005-02-07 14:44 ` Chris Friesen
2005-02-07 14:44 ` Chris Friesen
2005-02-07 21:35 ` Benjamin Herrenschmidt
2005-02-07 21:35 ` Benjamin Herrenschmidt
2005-02-07 23:02 ` Chris Friesen
2005-02-07 23:02 ` Chris Friesen
2005-02-07 23:42 ` Dan Malek [this message]
2005-02-07 23:42 ` Dan Malek
2005-02-08 15:36 ` Chris Friesen
2005-02-08 15:36 ` Chris Friesen
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