From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Zeuthen Subject: Re: System hangs when using USB 3.0 HD with on Ubuntu Date: Wed, 31 Mar 2010 13:17:54 -0400 Message-ID: <1270055874.16657.28.camel@localhost.localdomain> References: <1270048801.16657.8.camel@localhost.localdomain> <4BB37454.8070808@interlog.com> <1270053444.16657.17.camel@localhost.localdomain> <20100331165807.GA20547@tango.0pointer.de> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20100331165807.GA20547-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Lennart Poettering Cc: dgilbert-qazKcTl6WRFWk0Htik3J/w@public.gmane.org, Alan Stern , Jonas Schwertfeger , linux-hotplug-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sarah Sharp , linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, USB Storage List , Matthew Dharm , linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-scsi@vger.kernel.org On Wed, 2010-03-31 at 18:58 +0200, Lennart Poettering wrote: > > I actually don't think libatasmart has any business making such > > decisions on behalf of the user... Lennart, any chance we can stop > > libatasmart from doing this? Thanks. > > Uh. I think it definitely needs to call this. I am pretty sure most USB > HDDs you plug in have SMART disabled by default until libatasmart > enables it. So, libatasmart would stop enabling it automatically you'd > end up with no SMART at all for these devices. > > Also, on my desktop here, when you reset the BIOS settings to the > defaults, SMART is off. So, that means that somebody needs to enable > SMART from Linux, and who should do that if not libatasmart? Depends. If it's safe to enable SMART when available, sure, let's go for it. If it's not safe, we can prompt the user that SMART monitoring is available yet turned off. Much the same way we currently prompt the user when the disk is failing http://people.freedesktop.org/~david/smart-fail-1.png It wouldn't be much work to do this. David -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html