linux-kernel - Re: [ofa-general] Re: Demand paging for memory regions

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: <Pine.LNX.4.64.0802131101280.18472@schroedinger.engr.sgi.com>
Date:	Wed, 13 Feb 2008 11:02:15 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Christoph Raisch <RAISCH@...ibm.com>
cc:	Roland Dreier <rdreier@...co.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <andrea@...ranet.com>, avi@...ranet.com,
	a.p.zijlstra@...llo.nl, daniel.blueman@...drics.com,
	general@...ts.openfabrics.org,
	general-bounces@...ts.openfabrics.org, Robin Holt <holt@....com>,
	izike@...ranet.com, kvm-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Rik van Riel <riel@...hat.com>, steiner@....com
Subject: Re: [ofa-general] Re: Demand paging for memory regions

On Wed, 13 Feb 2008, Christoph Raisch wrote:

> For ehca we currently can't modify a large MR when it has been allocated.
> EHCA Hardware expects the pages to be there (MRs must not have "holes").
> This is also true for the global MR covering all kernel space.
> Therefore we still need the memory to be "pinned" if ib_umem_get() is
> called.

It cannot be freed and then reallocated? What happens when a process 
exists?

--
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/