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: <20160129213127.14ca55d5@lxorguk.ukuu.org.uk>
Date:	Fri, 29 Jan 2016 21:31:27 +0000
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Brijesh Singh <brijesh.singh@....com>, Tejun Heo <tj@...nel.org>,
	linux-kernel@...r.kernel.org, hdegoede@...hat.com,
	linux-ide@...r.kernel.org
Subject: Re: [PATCH v2] ata: add AMD Seattle platform driver

> For the ACPI case, I still think that an AML call from the AHCI driver
> is the most logical solution. You mentioned that you believe that calling
> into the AML interpreter up to 100 times per second is a noticeable
> overhead, but I doubt that and would like to see actual number backing
> that up. Note that most of the time, the status of the LEDs won't even
> change, so the driver does not have to call into the AML while I/O
> is in progress, or while it is stopped, only for the transition or in
> case of locate and fault events that should be extremely rare.

It can also be delayed - you don't need to adjust the LED at any great
rate - it's for a human not a machine to read.

Alan

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ