On 12 Nov 2009, George Spelvin wrote: > > With the same less-PCI-bridges configuration as last time, the Sandisk Cruzer > > appears to be rock-stable. I'm currently copying movie files to and from it > > without a hiccup, which would insta-hang it before. > > I spoke too soon. It's more stable, but it can still be made to hang > up in the same way. I'm starting to suspect a PCIe interrupt > problem. I need to read the ehci spec and figure out if an interrupt > getting lost could cause such a hang... :-( Sure it could. In the most recent kernels anyway; earlier kernels had an I/O watchdog timer which would kick in. But the timer is disabled on Intel hardware, because the hardware is supposed to be reliable. Alan Stern -- 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
