linux-kernel - Re: [rtc-linux] Re: state of GEN

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: <20080221011425.2f8ad363@i1501.lan.towertech.it>
Date:	Thu, 21 Feb 2008 01:14:25 +0100
From:	Alessandro Zummo <alessandro.zummo@...ertech.it>
To:	rtc-linux@...glegroups.com
Cc:	woodys@...dros.com, galak@...nel.crashing.org,
	LKML Kernel <linux-kernel@...r.kernel.org>,
	linuxppc-dev list <linuxppc-dev@...abs.org>, rz@...ux-m68k.org
Subject: Re: [rtc-linux] Re: state of GEN_RTC vs rtc subsystem

On Wed, 20 Feb 2008 15:37:28 -0500
woodys <woodys@...dros.com> wrote:

> On ARM genrtc has been arbitrary disabled in Kconfig circa 2.6.19 and 
> the change to rtc_cmos it is not 100% transparent (ARM Netwinder, Debian).
> If I want to use a current (Etch) hwclock binary - I need genrtc with 
> /dev/rtc at 10,135, however new rtc_cmos creates /dev/rtc0 at 254,0.
> As a result on new kernels hwclock claims that it is not able to access 
> hardware.
> 
> However upgrading the util-linux package will (sometime in the 
> "unstable" future) solve it, so it is not completely broken... Still, at 
> the moment - genrtc seems to be a better solution...

 Strange that it has been disabled, I used to keep an eye to avoid touching
 anything outside of drivers/rtc .

 the rtc subsystem creates the device dynamically, you shouldn't count
 on having 254,0. I would eventually ack a patch that adds
 /dev/rtc at 10,135 as an alias for /dev/rtc0.

 however the best solution would be to upgrade hwclock.


-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

--
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/