Date: Sat, 27 Nov 2004 00:42:04 -0500 From: Craig Rodrigues <rodrigc@crodrigues.org> To: freebsd-usb@freebsd.org Subject: Re: Toshiba PDR-M4 digital camera hangs system Message-ID: <20041127054204.GA1018@crodrigues.org> In-Reply-To: <20041126081322.GA2405@crodrigues.org> References: <20041126081322.GA2405@crodrigues.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, Nov 26, 2004 at 03:13:22AM -0500, Craig Rodrigues wrote:
> Hi,
>
> I have a Toshiba PDR-M4 digital camera.
>
> When I connect the camera via USB cable to my system
> running -CURRENT, I get the following console messages:
>
> umass0: TOSHIBA PDR-M, rev 1.00/1.00, addr 2
> umass0: SCSI over Bulk-Only; quirks = 0x000
> umass0: Get Max Lun not supported (TIMEOUT)
> umass:0:0:-1 Attached to scbus0
>
> At this point my system is solidly hung, i.e. the system
> is unresponsive, and I cannot break into DDB with Ctrl-Alt-ESC.
I got a second machine and tried to do some debugging over
the serial port. After connecting my Toshiba camera
to the system, I started debugging the system
at umass_cam_attach(). After tracing for a while,
I noticed that things seemed to be hung at on line 342 of usbdi.c:
339 if (!xfer->done) {
340 if (pipe->device->bus->use_polling)
341 panic("usbd_transfer: not done");
342 tsleep(xfer, PRIBIO, "usbsyn", 0);
343 }
Is this related to the tsleep() hack that Scott Mitchell
provided for 4.x?
--
Craig Rodrigues
http://crodrigues.org
rodrigc@crodrigues.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20041127054204.GA1018>