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From: David Brownell <david-b@pacbell.net>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Mike Anderson <andmike@us.ibm.com>,
	Florin Iucha <florin@iucha.net>,
	USB development list <linux-usb-devel@lists.sourceforge.net>,
	linux-scsi@vger.kernel.org
Subject: Re: [linux-usb-devel] USB Storage oops in 2.5.69-bk8
Date: Sat, 17 May 2003 09:33:41 -0700	[thread overview]
Message-ID: <3EC66465.6020700@pacbell.net> (raw)
In-Reply-To: Pine.LNX.4.44L0.0305171108050.26146-100000@netrider.rowland.org


> What happens is that the device crashes because of the 3-byte 
> MODE-SENSE(6) request.  The scsi error handler tries various levels of 
> fault recovery, all the way up to a bus reset.  Usb-storage implements the 
> bus reset as a USB port reset, which requires usbcore to re-enumerate 
> the device.  The line
> 
>    drivers/usb/core/message.c: usb_control/bulk_msg: timeout
> 
> refers to a failure during the re-enumeration.  Apparently even the port
> reset was not enough to revive the device.  

That reset couldn't re-assign the address, so of course it failed.

In hub.c, usb_physical_reset_device() is leaving dev->state as
USB_STATE_CONFIGURED after resetting the port, and of course it's
not legal to set the address of a device in that state.

- Dave







  reply	other threads:[~2003-05-17 17:40 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20030516190414.GD11884@iucha.net>
2003-05-16 21:23 ` [linux-usb-devel] USB Storage oops in 2.5.69-bk8 Alan Stern
2003-05-16 21:44   ` Florin Iucha
2003-05-16 22:29   ` Mike Anderson
2003-05-17 15:29     ` Alan Stern
2003-05-17 16:33       ` David Brownell [this message]
2003-05-18 18:31         ` Alan Stern
2003-05-18 23:46           ` David Brownell
2003-05-21 15:19             ` Bug in hot-unplugging for SCSI CD-ROM Alan Stern
2003-05-17 18:38       ` [linux-usb-devel] USB Storage oops in 2.5.69-bk8 Patrick Mansfield
2003-05-31 14:35         ` Florin Iucha
2003-05-20 14:11     ` Patch: change the serial_number for error-handler commands Alan Stern
2003-05-20 21:25       ` Luben Tuikov
2003-05-21  1:19         ` Alan Stern
2003-05-21 18:03           ` Mike Anderson
2003-05-21 18:50             ` Luben Tuikov
2003-05-21 19:18             ` Luben Tuikov
2003-05-21 20:28               ` Mike Anderson
2003-05-21 21:11                 ` Luben Tuikov
2003-05-21 23:15                   ` Patrick Mansfield
2003-05-22  5:47                     ` Luben Tuikov
2003-05-21 19:57             ` Alan Stern
2003-05-21 20:42               ` Luben Tuikov
2003-05-21 21:05                 ` Alan Stern
2003-05-21 21:19             ` James Bottomley
2003-05-21 22:53               ` Mike Anderson
2003-06-11 17:41             ` PATCH: (as33) Remove /proc/scsi directory in scsi_remove_host() Alan Stern
2003-06-11 18:23               ` Mike Anderson
2003-06-12  6:04                 ` Christoph Hellwig
2003-06-12  6:51                   ` Mike Anderson
2003-06-12 21:00                     ` PATCH: (as33b) " Alan Stern
2003-06-12 21:58                       ` Mike Anderson
2003-06-13 14:38                         ` Alan Stern
2003-06-15 13:01                         ` Christoph Hellwig
2003-05-21 19:24           ` Patch: change the serial_number for error-handler commands Luben Tuikov
2003-05-16 15:56 Fwd: Re: [linux-usb-devel] USB Storage oops in 2.5.69-bk8 Florin Iucha
2003-05-16 16:22 ` Mike Anderson
2003-05-16 17:25   ` Florin Iucha

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