From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: bgagnon@coradiant.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Memory leak in 2.4.27 kernel, using mmap raw packet sockets
Date: Wed, 20 Oct 2004 19:43:58 +0100 [thread overview]
Message-ID: <1098297838.12366.4.camel@localhost.localdomain> (raw)
In-Reply-To: <20041019143522.GA8688@logos.cnet>
On Maw, 2004-10-19 at 15:35, Marcelo Tosatti wrote:
> > That isnt sufficient. Consider anything else taking a reference to the
> > page and the refcount going negative.
>
> You mean not going negative? The problem here as I understand here is
> we dont release the count if the PageReserved is set, but we should.
Drivers like the OSS audio drivers move page between Reserved and
unreserved. The count can thus be corrupted.
next prev parent reply other threads:[~2004-10-20 22:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-14 14:50 Memory leak in 2.4.27 kernel, using mmap raw packet sockets bgagnon
2004-10-15 18:23 ` Marcelo Tosatti
2004-10-17 2:39 ` Alan Cox
2004-10-19 14:35 ` Marcelo Tosatti
2004-10-20 18:43 ` Alan Cox [this message]
2004-10-20 23:24 ` Andrea Arcangeli
2004-10-23 14:17 ` Marcelo Tosatti
2004-11-25 15:02 ` Marcelo Tosatti
2004-11-25 20:32 ` Andrea Arcangeli
2004-11-25 17:12 ` Marcelo Tosatti
2004-11-25 23:13 ` Andrea Arcangeli
2004-11-25 19:45 ` Marcelo Tosatti
2004-11-26 1:04 ` Andrea Arcangeli
2004-11-30 4:03 ` David S. Miller
2004-11-30 4:16 ` Andrea Arcangeli
2004-11-30 6:11 ` David S. Miller
2004-11-30 6:19 ` David S. Miller
-- strict thread matches above, loose matches on Subject: below --
2004-10-21 13:39 O.Sezer
2004-10-21 14:26 ` Andrea Arcangeli
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