On Mon, 6 Feb 2012, Alan Stern wrote: > On Mon, 6 Feb 2012, Dave Jones wrote: > > > We've had a few reports of the "clear_halt for a busy endpoint" WARN > > from ehci_endpoint_reset(). > > > > https://bugzilla.redhat.com/show_bug.cgi?id=749907 > > > > https://bugzilla.redhat.com/show_bug.cgi?id=781762 > > > > https://bugzilla.redhat.com/show_bug.cgi?id=787533 > > > > The common theme seems to be that they all have usblp loaded. > > > > What can we do to help diagnose these ? > > Have the bug reporters collect a usbmon trace, following the > instructions in Documentation/usb/usbmon.txt. It's worth noting that all three stack traces show the bad clear_halt coming from a user program called "hp". Whatever that program is, it appears to be doing something stupid -- and changing the kernel won't help. 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
