On Mon, Nov 26, 2012 at 03:46:38PM -0500, Alan Stern wrote: > On Mon, 26 Nov 2012, Piergiorgio Sartor wrote: > > > Hi Alan, > > > > thanks for the patch. > > > > I'll try to apply it and report the results, > > including the USB EHCI register files. > > > > Unfortunately, I cannot provide a "deadline" > > (so to speak), I'm quite busy at the moment. > > Don't worry about it; I'm not in any hurry. > > When you do get around to testing, don't forget to try combinations > with fewer drives and/or only one hub. Hi Alan, I updated the bugzilla entry with some attachments. One (split in two) is the log from usbmon with the patch you provided (I hope I did it correctly). The other is an archive with all the register information I could think of. I tested with 4 HDDs only and I was not able to see a crash of the USB subsystem. About using only one HUB, that might be a bit tricky, but since each HUB has 4 ports (the 1-to-7 has internally two 1-to-4 cascaded) I guess I've only to make sure the 4 HDDs was *not* running on single HUB. If it was, then a different connection must be tested, otherwise, I guess, we will not get more information by connecting the 4 HDDs to a single HUB. The problem I've is that it is not really easy to convert from /dev/sdX to lsusb to SCSI mappings... bye, -- piergiorgio -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
