From: Ruud Linders <rkmp@xs4all.nl>
To: Linus Torvalds <torvalds@osdl.org>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
Patrick Mansfield <patmans@us.ibm.com>,
Christoph Hellwig <hch@infradead.org>,
Alan Stern <stern@rowland.harvard.edu>,
Matthew Dharm <mdharm-usb@one-eyed-alien.net>,
David Brownell <david-b@pacbell.net>, Greg KH <greg@kroah.com>,
USB development list <linux-usb-devel@lists.sourceforge.net>,
SCSI development list <linux-scsi@vger.kernel.org>,
Andries.Brouwer@cwi.nl
Subject: Re: [linux-usb-devel] Re: USB storage problems on OHCI..
Date: Wed, 24 Sep 2003 18:40:29 +0200 [thread overview]
Message-ID: <3F71C8FD.2050109@xs4all.nl> (raw)
In-Reply-To: <Pine.LNX.4.44.0309231114050.15373-100000@home.osdl.org>
Linus Torvalds wrote:
> On Tue, 23 Sep 2003, Ruud Linders wrote:
>
>>I tried the patch but it doesn't work for me using an USB-2 Memory stick
>>"DiskonKey" on an USB-2 port (with uhci_hcd & ehci_hcd loaded).
>>
>>After a 3 minute time-out I get
>> "SCSI device sda: drive cache: write through"
>>and the device starts working just fine.
>
>
> Is this different from a plain kernel _without_ the patch?
>
No difference.
>
>>Unloading the ehci_hcd module doesn't make any difference.
>>Only when ripping out the whole mode-sense call it works immediately :-)
>>so it appears the device is just unhappy about the sd_do_mode_sense.
>
>
> Yes, I think we might want to mark USB devices as being write-through by
> default. That said, I think the patch is still better than what we have
> now (which just doesn't make any sense at all).
>
Fully agree here, 2.4.2x doesn't appear to do this mode_sense checking
and works with all the usb-mass-storage devices I tried.
> Linus
>
>
_
Ruud
next prev parent reply other threads:[~2003-09-24 16:40 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030922004943.E32009@one-eyed-alien.net>
2003-09-22 14:25 ` [linux-usb-devel] Re: USB storage problems on OHCI Alan Stern
2003-09-22 14:31 ` Christoph Hellwig
2003-09-22 15:11 ` Christoph Hellwig
2003-09-22 15:49 ` Patrick Mansfield
2003-09-22 16:09 ` [linux-usb-devel] " Linus Torvalds
2003-09-22 16:42 ` Alan Stern
2003-09-22 17:23 ` Patrick Mansfield
2003-09-22 17:41 ` [linux-usb-devel] " Linus Torvalds
2003-09-22 17:55 ` James Bottomley
2003-09-22 19:55 ` [linux-usb-devel] " Linus Torvalds
2003-09-23 17:47 ` Ruud Linders
2003-09-23 18:16 ` Linus Torvalds
2003-09-24 16:40 ` Ruud Linders [this message]
2003-09-24 16:53 ` Linus Torvalds
2003-09-26 18:43 ` Alan Stern
2003-10-03 14:18 ` Alan Stern
2003-10-03 15:05 ` James Bottomley
2003-10-03 21:35 ` Patrick Mansfield
2003-09-22 18:46 ` Alan Cox
2003-09-22 16:37 ` [linux-usb-devel] " Christoph Hellwig
2003-09-22 16:44 ` Patrick Mansfield
2003-09-22 17:21 ` Christoph Hellwig
2003-09-22 19:01 ` Alan Stern
2003-09-22 15:50 ` Alan Stern
2003-09-22 15:58 ` Patrick Mansfield
2003-09-22 16:36 ` [linux-usb-devel] " Alan Stern
2003-09-22 16:38 ` Christoph Hellwig
2003-09-22 15:29 ` [linux-usb-devel] " Linus Torvalds
2003-09-22 16:22 ` David Brownell
2003-09-22 16:31 ` [linux-usb-devel] " Linus Torvalds
2003-09-22 17:13 ` David Brownell
2003-09-22 17:29 ` Linus Torvalds
2003-09-22 17:49 ` [linux-usb-devel] " David Brownell
2003-09-22 18:40 ` Linus Torvalds
2003-09-22 19:14 ` Alan Stern
2003-09-22 16:58 ` [linux-usb-devel] " Martin Diehl
2003-09-22 17:19 ` David Brownell
2003-09-22 18:55 Andries.Brouwer
2003-09-22 19:28 ` [linux-usb-devel] " James Bottomley
-- strict thread matches above, loose matches on Subject: below --
2003-09-22 19:56 Andries.Brouwer
2003-09-22 20:48 ` Alan Stern
2003-09-22 20:51 ` Matthew Dharm
2003-09-23 14:04 ` James Bottomley
2003-09-22 22:55 Pat LaVarre
2003-09-29 14:54 ` Pat LaVarre
2003-09-22 23:07 Andries.Brouwer
2003-09-23 14:37 Andries.Brouwer
2003-09-23 14:51 ` James Bottomley
2003-09-23 15:46 ` Linus Torvalds
2003-09-23 15:23 Alan Stern
2003-09-24 14:10 ` [linux-usb-devel] " James Bottomley
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