From: "Martin K. Petersen" <martin.petersen@oracle.com> To: Alan Stern <stern@rowland.harvard.edu> Cc: Luben Tuikov <ltuikov@yahoo.com>, Sarah Sharp <sarah.a.sharp@linux.intel.com>, Jonas Schwertfeger <jschwertfeger@gmail.com>, USB Storage List <usb-storage@lists.one-eyed-alien.net>, Matthew Dharm <mdharm-usb@one-eyed-alien.net>, "<linux-scsi@vger.kernel.org>" <linux-scsi@vger.kernel.org>, Lennart Poettering <lennart@poettering.net>, Douglas Gilbert <dgilbert@interlog.com>, "<Dinh.Nguyen@freescale.com>" <Dinh.Nguyen@freescale.com>, Mark Lord <mlord@pobox.com>, Sergei Shtylyov <sshtylyov@mvista.com>, James Bottomley <James.Bottomley@suse.de>, Kay Sievers <kay.sievers@vrfy.org>, David Zeuthen <david@fubar.dk>, "<linux-hotplug@vger.kernel.org>" <linux-hotplug@vger.kernel.org>, "<linux-usb@vger.kernel.org>" <linux-usb@vger.kernel.org> Subject: Re: System hangs when using USB 3.0 HD with on Ubuntu Date: Wed, 21 Apr 2010 16:18:51 +0000 [thread overview] Message-ID: <yq1fx2owzh0.fsf@sermon.lab.mkp.net> (raw) In-Reply-To: <Pine.LNX.4.44L0.1004211205560.1728-100000@iolanthe.rowland.org> (Alan Stern's message of "Wed, 21 Apr 2010 12:09:57 -0400 (EDT)") >>>>> "Alan" = Alan Stern <stern@rowland.harvard.edu> writes: I'm guessing Doug is out today because he didn't forward the note below. Just passing the info along... >> It is needed by the transport protocol(s). Alan> I don't understand; can you explain more fully? Which transport Alan> protocol(s) need to use the Sector Count? The USB transport Alan> protocol doesn't; it encodes the transfer length in a wrapper. Alan> The bridge chip should interpret the wrapper instead of looking Alan> inside the SAT command. Doug posted to the T10 list and here's what Jim Hatfield from Seagate responded: For ATA (SATA or PATA), the Count field should NEVER be zero, because neither interface supports zero-length data transfer for any protocol (dma, pio, etc). In ATA, 'N/A' is defined the way it is because there are some ancient implementations for which there are vendor specific differences. -- Martin K. Petersen Oracle Linux Engineering
WARNING: multiple messages have this Message-ID (diff)
From: "Martin K. Petersen" <martin.petersen@oracle.com> To: Alan Stern <stern@rowland.harvard.edu> Cc: Luben Tuikov <ltuikov@yahoo.com>, Sarah Sharp <sarah.a.sharp@linux.intel.com>, Jonas Schwertfeger <jschwertfeger@gmail.com>, USB Storage List <usb-storage@lists.one-eyed-alien.net>, Matthew Dharm <mdharm-usb@one-eyed-alien.net>, "<linux-scsi@vger.kernel.org>" <linux-scsi@vger.kernel.org>, Lennart Poettering <lennart@poettering.net>, Douglas Gilbert <dgilbert@interlog.com>, "<Dinh.Nguyen@freescale.com>" <Dinh.Nguyen@freescale.com>, Mark Lord <mlord@pobox.com>, Sergei Shtylyov <sshtylyov@mvista.com>, James Bottomley <James.Bottomley@suse.de>, Kay Sievers <kay.sievers@vrfy.org>, David Zeuthen <david@fubar.dk>, "<linux-hotplug@vger.kernel.org>" <linux-hotplug@vger.kernel.org>, "<linux-usb@vger.kernel.org>" <linux-usb@vger.kernel.org> Subject: Re: System hangs when using USB 3.0 HD with on Ubuntu Date: Wed, 21 Apr 2010 12:18:51 -0400 [thread overview] Message-ID: <yq1fx2owzh0.fsf@sermon.lab.mkp.net> (raw) In-Reply-To: <Pine.LNX.4.44L0.1004211205560.1728-100000@iolanthe.rowland.org> (Alan Stern's message of "Wed, 21 Apr 2010 12:09:57 -0400 (EDT)") >>>>> "Alan" == Alan Stern <stern@rowland.harvard.edu> writes: I'm guessing Doug is out today because he didn't forward the note below. Just passing the info along... >> It is needed by the transport protocol(s). Alan> I don't understand; can you explain more fully? Which transport Alan> protocol(s) need to use the Sector Count? The USB transport Alan> protocol doesn't; it encodes the transfer length in a wrapper. Alan> The bridge chip should interpret the wrapper instead of looking Alan> inside the SAT command. Doug posted to the T10 list and here's what Jim Hatfield from Seagate responded: For ATA (SATA or PATA), the Count field should NEVER be zero, because neither interface supports zero-length data transfer for any protocol (dma, pio, etc). In ATA, 'N/A' is defined the way it is because there are some ancient implementations for which there are vendor specific differences. -- Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2010-04-21 16:18 UTC|newest]
Thread overview: 227+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4BA9D74F.9040507@gmail.com>
[not found] ` <4BA7797F.8060605@gmail.com>
[not found] ` <20100324155917.GA4382@xanatos>
[not found] ` <59ca64281003241107x40c5d83co29d1ee03d8d3a0d1@mail.gmail.com>
2010-03-26 18:40 ` System hangs when using USB 3.0 HD with on Ubuntu Sarah Sharp
2010-03-26 19:10 ` Douglas Gilbert
2010-03-26 19:27 ` [usb-storage] " Matthew Dharm
2010-03-26 20:23 ` Sarah Sharp
2010-03-26 20:55 ` Jonas Schwertfeger
2010-03-26 21:10 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1003261705340.23253-100000-pYrvlCTfrz9XsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-03-26 21:30 ` Douglas Gilbert
2010-03-30 7:44 ` Jonas Schwertfeger
2010-03-31 11:39 ` Jonas Schwertfeger
2010-03-31 11:39 ` Jonas Schwertfeger
2010-03-31 14:56 ` Alan Stern
2010-03-31 14:56 ` Alan Stern
2010-03-31 15:20 ` David Zeuthen
2010-03-31 15:20 ` David Zeuthen
2010-03-31 16:12 ` Douglas Gilbert
2010-03-31 16:12 ` Douglas Gilbert
2010-03-31 16:36 ` Alan Stern
2010-03-31 16:36 ` Alan Stern
2010-04-01 13:32 ` Jonas Schwertfeger
2010-04-01 13:32 ` Jonas Schwertfeger
2010-04-01 13:42 ` Kay Sievers
2010-04-01 13:42 ` Kay Sievers
2010-04-01 13:55 ` Jonas Schwertfeger
2010-04-01 13:55 ` Jonas Schwertfeger
[not found] ` <r2k59ca64281004010655z93fedfa8rdeb447d82a848d9f-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-01 14:05 ` Kay Sievers
2010-04-01 14:05 ` Kay Sievers
2010-04-02 12:40 ` Jonas Schwertfeger
2010-04-02 12:40 ` Jonas Schwertfeger
[not found] ` <m2l59ca64281004020540z7e502130g22dfc035f1ceda6a-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-02 13:09 ` Jonas Schwertfeger
2010-04-02 13:09 ` Jonas Schwertfeger
[not found] ` <t2t59ca64281004020609sa0f67f0dj5c127e3f0b2e4db2-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-02 14:12 ` Alan Stern
2010-04-02 14:12 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1004021010130.1615-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-02 14:41 ` James Bottomley
2010-04-02 14:41 ` James Bottomley
[not found] ` <1270219267.2899.73.camel-0iu6Cu4xQGLYCGPCin2YbQ@public.gmane.org>
2010-04-02 14:57 ` Alan Stern
2010-04-02 14:57 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1004021052040.1615-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-02 15:19 ` Alan Stern
2010-04-02 15:19 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1004021114160.1615-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-02 15:50 ` Sergei Shtylyov
2010-04-02 15:50 ` Sergei Shtylyov
2010-04-02 15:59 ` James Bottomley
2010-04-02 15:59 ` James Bottomley
2010-04-07 18:08 ` Mark Lord
2010-04-07 18:08 ` Mark Lord
2010-04-07 18:29 ` James Bottomley
2010-04-07 18:29 ` James Bottomley
2010-04-07 19:18 ` Alan Stern
2010-04-07 19:18 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1004071516260.5760-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-07 22:49 ` Mark Lord
2010-04-07 22:49 ` Mark Lord
2010-04-08 5:06 ` Jonas Schwertfeger
2010-04-08 5:06 ` Jonas Schwertfeger
2010-04-02 16:21 ` Douglas Gilbert
2010-04-02 16:21 ` Douglas Gilbert
2010-04-02 16:39 ` Douglas Gilbert
2010-04-02 16:39 ` Douglas Gilbert
[not found] ` <4BB61DAF.7090709-qazKcTl6WRFWk0Htik3J/w@public.gmane.org>
2010-04-02 21:24 ` Mark Lord
2010-04-02 21:24 ` Mark Lord
2010-04-03 6:21 ` Jonas Schwertfeger
2010-04-03 6:21 ` Jonas Schwertfeger
2010-04-03 13:12 ` Mark Lord
2010-04-03 15:40 ` Jonas Schwertfeger
2010-04-03 15:40 ` Jonas Schwertfeger
2010-04-03 16:42 ` Alan Stern
2010-04-03 16:42 ` Alan Stern
2010-04-03 17:06 ` Jonas Schwertfeger
2010-04-03 17:06 ` Jonas Schwertfeger
2010-04-03 20:58 ` Alan Stern
2010-04-03 20:58 ` Alan Stern
2010-04-04 1:29 ` Mark Lord
2010-04-04 1:29 ` Mark Lord
[not found] ` <Pine.LNX.4.44L0.1004031648230.21507-100000-pYrvlCTfrz9XsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-06 6:43 ` Jonas Schwertfeger
2010-04-06 6:43 ` Jonas Schwertfeger
[not found] ` <4BBAD7FF.5000605-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2010-04-06 14:49 ` Alan Stern
2010-04-06 14:49 ` Alan Stern
2010-04-06 14:56 ` Jonas Schwertfeger
2010-04-06 14:56 ` Jonas Schwertfeger
[not found] ` <Pine.LNX.4.44L0.1004061048590.1722-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-07 6:27 ` Jonas Schwertfeger
2010-04-07 6:27 ` Jonas Schwertfeger
[not found] ` <4BBC25C9.5030201-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2010-04-07 14:36 ` Alan Stern
2010-04-07 14:36 ` Alan Stern
2010-04-07 14:42 ` Jonas Schwertfeger
2010-04-07 14:42 ` Jonas Schwertfeger
2010-04-07 14:51 ` Jerone Young
2010-04-07 14:51 ` Jerone Young
2010-04-07 15:03 ` Alan Stern
2010-04-07 15:03 ` Alan Stern
2010-04-07 15:10 ` Jonas Schwertfeger
2010-04-07 15:10 ` Jonas Schwertfeger
2010-04-09 15:38 ` Alan Stern
2010-04-09 15:38 ` Alan Stern
2010-04-09 16:39 ` Douglas Gilbert
2010-04-09 16:39 ` Douglas Gilbert
[not found] ` <4BBF582F.4040707-qazKcTl6WRFWk0Htik3J/w@public.gmane.org>
2010-04-09 17:14 ` Sarah Sharp
2010-04-09 17:14 ` Sarah Sharp
2010-04-09 18:00 ` Jonas Schwertfeger
2010-04-09 18:00 ` Jonas Schwertfeger
2010-04-09 19:25 ` Alan Stern
2010-04-09 19:25 ` Alan Stern
2010-04-09 21:54 ` Sarah Sharp
2010-04-09 21:54 ` Sarah Sharp
2010-04-12 7:48 ` Jonas Schwertfeger
2010-04-12 7:48 ` Jonas Schwertfeger
2010-04-16 18:20 ` Sarah Sharp
2010-04-16 18:20 ` Sarah Sharp
2010-04-16 19:25 ` Alan Stern
2010-04-16 19:25 ` Alan Stern
2010-04-19 21:15 ` Sarah Sharp
2010-04-19 21:15 ` Sarah Sharp
2010-04-20 0:25 ` Mark Lord
2010-04-20 0:25 ` Mark Lord
2010-04-20 4:31 ` Mark Lord
2010-04-20 4:31 ` Mark Lord
2010-04-20 15:39 ` Alan Stern
2010-04-20 15:39 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1004201045180.1837-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-20 17:37 ` Sarah Sharp
2010-04-20 17:37 ` Sarah Sharp
2010-04-20 19:48 ` Alan Stern
2010-04-20 19:48 ` Alan Stern
2010-04-21 14:04 ` Mark Lord
[not found] ` <4BCF0605.7080508-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2010-04-21 18:17 ` Mark Lord
2010-04-21 18:27 ` Jonas Schwertfeger
2010-04-21 18:27 ` Jonas Schwertfeger
2010-04-21 19:07 ` Alan Stern
2010-04-21 19:07 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1004211506040.1422-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-21 19:24 ` Mark Lord
2010-04-21 19:24 ` Mark Lord
2010-04-26 16:27 ` Sarah Sharp
2010-04-26 16:27 ` Sarah Sharp
2010-04-29 8:44 ` Jonas Schwertfeger
2010-04-29 8:44 ` Jonas Schwertfeger
2010-04-29 12:56 ` Mark Lord
2010-04-29 12:56 ` Mark Lord
2010-04-29 15:45 ` Alan Stern
2010-04-29 15:45 ` Alan Stern
2010-05-07 10:42 ` Jonas Schwertfeger
2010-05-07 10:42 ` Jonas Schwertfeger
[not found] ` <4BE3EE87.6020505-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2010-05-07 15:03 ` Alan Stern
2010-05-07 15:03 ` Alan Stern
2010-05-11 6:54 ` Jonas Schwertfeger
2010-05-11 6:54 ` Jonas Schwertfeger
2010-05-11 14:44 ` Alan Stern
2010-05-11 14:44 ` Alan Stern
2010-05-12 12:56 ` Mark Lord
2010-05-12 12:56 ` Mark Lord
2010-05-12 14:23 ` Douglas Gilbert
2010-05-12 14:23 ` Douglas Gilbert
2010-05-12 14:37 ` Mark Lord
2010-05-12 14:37 ` Mark Lord
2010-05-12 14:45 ` Mark Lord
2010-05-12 14:45 ` Mark Lord
2010-05-12 15:09 ` Alan Stern
2010-05-12 15:09 ` Alan Stern
2010-05-12 15:39 ` James Bottomley
2010-05-12 15:39 ` James Bottomley
2010-05-12 18:48 ` Alan Stern
2010-05-12 18:48 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1005121444450.1353-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-05-13 3:12 ` Mark Lord
2010-05-13 3:12 ` Mark Lord
2010-05-13 18:42 ` Alan Stern
2010-05-13 18:42 ` Alan Stern
2010-04-21 12:31 ` Luben Tuikov
2010-04-21 12:31 ` Luben Tuikov
2010-04-21 14:31 ` Alan Stern
2010-04-21 14:31 ` Alan Stern
2010-04-21 12:47 ` Luben Tuikov
2010-04-21 12:47 ` Luben Tuikov
2010-04-21 13:52 ` Mark Lord
2010-04-21 13:52 ` Mark Lord
2010-04-21 14:04 ` James Bottomley
2010-04-21 14:04 ` James Bottomley
2010-04-21 14:08 ` Mark Lord
2010-04-21 14:08 ` Mark Lord
2010-04-21 14:15 ` James Bottomley
2010-04-21 14:15 ` James Bottomley
2010-04-21 14:13 ` Mark Lord
2010-04-21 14:13 ` Mark Lord
2010-04-21 14:22 ` James Bottomley
2010-04-21 14:22 ` James Bottomley
[not found] ` <1271859728.2893.72.camel-0iu6Cu4xQGLYCGPCin2YbQ@public.gmane.org>
2010-04-21 14:53 ` Alan Stern
2010-04-21 14:53 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1004211032460.1728-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2010-04-21 23:29 ` Stefan Richter
2010-04-21 23:29 ` Stefan Richter
2010-04-20 17:48 ` Douglas Gilbert
2010-04-20 17:48 ` Douglas Gilbert
2010-04-16 21:31 ` James Bottomley
2010-04-16 21:31 ` James Bottomley
2010-04-16 23:56 ` Douglas Gilbert
2010-04-16 23:56 ` Douglas Gilbert
2010-04-19 15:04 ` Jonas Schwertfeger
2010-04-19 15:04 ` Jonas Schwertfeger
2010-04-19 16:02 ` Alan Stern
2010-04-19 16:02 ` Alan Stern
2010-04-19 20:45 ` Sarah Sharp
2010-04-19 20:45 ` Sarah Sharp
2010-04-02 17:36 ` Sarah Sharp
2010-04-02 17:36 ` Sarah Sharp
2010-03-31 16:37 ` David Zeuthen
2010-03-31 16:37 ` David Zeuthen
[not found] ` <1270053444.16657.17.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2010-03-31 16:58 ` Lennart Poettering
2010-03-31 16:58 ` Lennart Poettering
2010-03-31 17:03 ` Lennart Poettering
2010-03-31 17:03 ` Lennart Poettering
[not found] ` <20100331165807.GA20547-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2010-03-31 17:17 ` David Zeuthen
2010-03-31 17:17 ` David Zeuthen
2010-03-31 17:06 ` David Zeuthen
2010-03-31 17:06 ` David Zeuthen
[not found] ` <1270049200.2302.320.camel@laptop>
2010-03-31 15:37 ` Jonas Schwertfeger
2010-03-31 15:37 ` Jonas Schwertfeger
2010-04-21 14:58 ` Luben Tuikov
2010-04-21 14:58 ` Luben Tuikov
2010-04-21 15:09 ` Luben Tuikov
2010-04-21 15:09 ` Luben Tuikov
2010-04-21 16:09 ` Alan Stern
2010-04-21 16:09 ` Alan Stern
2010-04-21 16:18 ` Martin K. Petersen [this message]
2010-04-21 16:18 ` Martin K. Petersen
2010-04-21 17:41 ` Sarah Sharp
2010-04-21 17:41 ` Sarah Sharp
2010-04-21 18:08 ` Alan Stern
2010-04-21 18:08 ` Alan Stern
2010-04-22 0:08 ` Luben Tuikov
2010-04-22 0:08 ` Luben Tuikov
2010-04-22 14:52 ` Alan Stern
2010-04-22 14:52 ` Alan Stern
2010-03-29 21:28 ` Sarah Sharp
2010-03-30 7:24 ` Jonas Schwertfeger
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