On Sun, Dec 02, 2012 at 01:03:22PM -0500, Alan Stern wrote: > On Sat, 1 Dec 2012, Piergiorgio Sartor wrote: > > > 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). > > This usbmon trace doesn't contain anything significantly different from > the previous one. You can delete the two big files from the bug report > if you want. OK, I'll do that. > More importantly, where's the dmesg output from the patch? Damm it! I knew I missed something. I understood the patch was adding verbosity to usbmon. Sorry, I got it wrong. I'll give it another round, with dmesg How about the registers? Any hint there? > > 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. > > It's not clear... In fact, using fewer drives and hubs may not provide > any useful information at all. This is just trying whatever I can > think of to see what's going wrong. > > > The problem I've is that it is not really easy to > > convert from /dev/sdX to lsusb to SCSI mappings... > > The necessary information is all there in the dmesg log. OK, so I'll try both cases again. Thanks for the support, sorry for the waste of time. 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
