On Wed, Apr 21, 2004 at 12:54:36PM -0700, Aleksey Nogin wrote: > On 21.04.2004 07:43, Alan Stern wrote: > > > On Tue, 20 Apr 2004, Aleksey Nogin wrote: > > > > > >>Thanks a lot for your feedback. Unfortunately, your patch does not seem > >>to affect anything. > > > > > > Yes, now you come to mention it, I see there isn't any code in there to > > retry the INQUIRY command after a Unit Attention! All right, try this > > patch instead. > > This works, thanks! > > However, is still only works when connected directly. If connected > through a hub, when I start copying files, after transferring in the > range of 100-500KB, the system thinks that the hub was disconnected, > data transfer gets stuck, then it thinks that the mouse (that is > attached to the hub) is disconnected, then it thinks that the mouse is > back, then everything becomes stuck. If I turn the camera off at this > point, it results in a kernel oops...
Where's the oops? This sounds like a badness John sent to me about a USB cdrom device that gets an error, and when it is later removed hits a WARN_ON in scsi_device_set_state. Here's the back trace: sr 7:0:0:0: Illegal state transition offline->cancel Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1640 Call Trace: [<c02b20e5>] scsi_device_set_state+0xbe/0x10b [<c02ac93b>] scsi_device_cancel+0x29/0xf4 [<c02acad5>] scsi_device_cancel_cb+0x0/0x1c [<c0238dd7>] device_for_each_child+0x3e/0x6e [<c02acb27>] scsi_host_cancel+0x36/0xab [<c02acad5>] scsi_device_cancel_cb+0x0/0x1c [<c0344af1>] usb_buffer_free+0x45/0x47 [<c02acbb7>] scsi_remove_host+0x1b/0x5c [<c0360bf1>] storage_disconnect+0x39/0x49 [<c0343b64>] usb_unbind_interface+0x7a/0x7c [<c0239b46>] device_release_driver+0x64/0x66 [<c0239c6d>] bus_remove_device+0x56/0x98 [<c0238d40>] device_del+0x5f/0x95 [<c0238d89>] device_unregister+0x13/0x23 [<c03495f5>] usb_disable_device+0x71/0xac [<c0344451>] usb_disconnect+0x9c/0xe9 [<c0346482>] hub_port_connect_change+0x282/0x287 [<c0345e39>] hub_port_status+0x45/0xb0 [<c03467a9>] hub_events+0x322/0x36e [<c0346826>] hub_thread+0x31/0xd1 [<c0111f86>] default_wake_function+0x0/0x12 [<c03467f5>] hub_thread+0x0/0xd1 [<c0102209>] kernel_thread_helper+0x5/0xb -- Patrick Mansfield ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
