From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: System hangs when using USB 3.0 HD with on Ubuntu Date: Wed, 12 May 2010 10:45:51 -0400 Message-ID: <4BEABF1F.6080800@pobox.com> References: <4BEAA583.1090805@pobox.com> <4BEAB9F6.60601@interlog.com> <4BEABD19.6020005@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4BEABD19.6020005@pobox.com> Sender: linux-hotplug-owner@vger.kernel.org To: dgilbert@interlog.com Cc: Alan Stern , Jonas Schwertfeger , Sarah Sharp , Dinh.Nguyen@freescale.com, Sergei Shtylyov , James Bottomley , Kay Sievers , David Zeuthen , linux-hotplug@vger.kernel.org, linux-usb@vger.kernel.org, USB Storage List , Matthew Dharm , linux-scsi@vger.kernel.org, Lennart Poettering List-Id: linux-scsi@vger.kernel.org On 12/05/10 10:37 AM, Mark Lord wrote: > On 12/05/10 10:23 AM, Douglas Gilbert wrote: >> Mark, >> Not sure if this bug got out into the wild but it >> sounds close to what you are describing: >> https://bugzilla.kernel.org/show_bug.cgi?id=15185 > .. > > I don't think that is the exact issue here. > But can you send me the patch that is referred to in that bugzilla entry? > > I've been noticing issues with the DSM TRIM command in newer kernels, > and I wonder if this might have something to do with that. .. Okay, I found the patch/commit, and my 2.6.32.5 kernel was missing it. Pulling down the latest 2.6.32.* tree now to see if it ever made it there. But that patch is for libata, which is not on the pathway for this USB3 issue. Cheers -- Mark Lord Real-Time Remedies Inc. mlord@pobox.com