linux-kernel - Re: [PATCH RFC] Watchdog: sbsa

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]

Date:	Thu, 5 May 2016 16:36:03 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Timur Tabi <timur@...eaurora.org>,
	Pratyush Anand <panand@...hat.com>
Cc:	fu.wei@...aro.org, Suravee.Suthikulpanit@....com, wim@...ana.be,
	linux-arm-kernel@...ts.infradead.org,
	linux-watchdog@...r.kernel.org,
	open list <linux-kernel@...r.kernel.org>,
	Dave Young <dyoung@...hat.com>, kexec@...ts.infradead.org
Subject: Re: [PATCH RFC] Watchdog: sbsa_gwdt: Enhance timeout range

On 05/05/2016 11:22 AM, Timur Tabi wrote:
> Pratyush Anand wrote:
>> I think, in the long run we must have SBSA
>> watchdog specification improvement to keep WOR as 64 bit.
>
> I agree with this 100%.  IMHO, using a 32-bit WOR was just a bad decision.
>

A 32-bit counter is absolutely fine. Letting it run with a 400MHz clock
(or was it 200 MHz ?) is the problem. A resolution of 2.5ns for a watchdog
timer does not really make any sense.

Guenter