linux-kernel - Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1156245313.27114.9.camel@localhost.localdomain>
Date:	Tue, 22 Aug 2006 12:15:13 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	rohitseth@...gle.com, sekharan@...ibm.com,
	Kirill Korotaev <dev@...ru>, Rik van Riel <riel@...hat.com>,
	ckrm-tech@...ts.sourceforge.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Christoph Hellwig <hch@...radead.org>,
	Andrey Savochkin <saw@...ru>, devel@...nvz.org,
	hugh@...itas.com, Ingo Molnar <mingo@...e.hu>,
	Pavel Emelianov <xemul@...nvz.org>
Subject: Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters

Ar Maw, 2006-08-22 am 11:57 +0200, ysgrifennodd Arjan van de Ven:
> there is one issue with the "creator pays" model: if the creator can
> decide to die/go away/respawn then you can create orphan resources. This

You cannot create orphan resources with UBC. All resources have an
owner. You might be able to construct a hypothetical scenario where I
commit all my resources to other people but I cannot create orphan
resources or leak them.

Even if I am the only user of a given UBC my counter will survive until
the last object is freed, not until I log out. If I log back in my
resource accounting is still there and nothing has escaped.

Alan



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/