On Tuesday 27 December 2011 15:40:05 Момчил Иванов wrote: > At Tue, 27 Dec 2011 15:29:02 +0100, > > Момчил Иванов wrote: > > At Tue, 27 Dec 2011 15:17:42 +0100, > > > > Hans Petter Selasky wrote: > > > Did you check for errors in dmesg? > > > > > > Also have you tried setting: > > > > > > hw.usb.ehci.lostintrbug=1 > > does not seem to help at all, it seems to make things even worse - the > stalls become more frequent... other ideas? >
Hi, If you compile a kernel with "options USB_DEBUG". Then when the problem appears, you enable umass debugging: sysctl hw.usb.umass.debug=15 OR: Check activity with usbdump upon failure: usbdump -i usbusX -vvv > log.txt cat log.txt | grep USB_ERR Some USB HDDs might have firmware failures. Most USB HDD enclosures are not 100% hardware and usually contains a small CPU to do USB. --HPS _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "[email protected]"
