>> 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. I was just RTFSing and seeing that. I was thinking that my diagnosis was obviously wrong, since the code clearly says it can run without any interrupt at all, but clearly that was written assuming the watchdog was enabled. Is it easy to re-enable? -- 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
