linux-kernel - Re: [ewg] Re: [PATCH 2.6.31] ehca: Tolerate dynamic memory operations and huge pages

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: <adazlc8w45c.fsf@cisco.com>
Date:	Tue, 16 Jun 2009 09:10:39 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Alexander Schmidt <alexs@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, ewg@...ts.openfabrics.org,
	linuxppc-dev@...abs.org, raisch@...ibm.com,
	Hoang-Nam Nguyen <HNGUYEN@...ux.vnet.ibm.com>
Subject: Re: [ewg] Re: [PATCH 2.6.31] ehca: Tolerate dynamic memory operations and huge pages


 > Yeah, the notifier code remains untouched as we still do not allow dynamic
 > memory operations _while_ our module is loaded. The patch allows the driver to
 > cope with DMEM operations that happened before the module was loaded, which
 > might result in a non-contiguous memory layout. When the driver registers
 > its global memory region in the system, the memory layout must be considered.
 > 
 > We chose the term "toleration" instead of "support" to illustrate this.

I see.  So things just silently broke in some cases when the driver was
loaded after operations you didn't tolerate?

Anyway, thanks for the explanation.
--
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/