On Fri, 15 Jun 2012, Austin Schuh wrote: > Here's another dump. Same machine, same kernel.a > > [ 328.346687] ehci_hcd 0000:00:1a.7: IRQ: status 8009 cmd 10021 > [ 328.346771] ehci_hcd 0000:00:1a.7: IAA watchdog: status 8028 cmd 10021 > [ 328.346780] ehci_hcd 0000:00:1a.7: IRQ: status 8008 cmd 10021 > > [ 1007.149450] ehci_hcd 0000:00:1a.7: IRQ: status c009 cmd 10031 > [ 1007.149493] ehci_hcd 0000:00:1a.7: IAA watchdog: status c028 cmd 10031 > [ 1007.149821] ehci_hcd 0000:00:1a.7: IRQ: status c009 cmd 10031 > > [ 1150.328479] ehci_hcd 0000:00:1a.7: IRQ: status 8009 cmd 10021 > [ 1150.328551] ehci_hcd 0000:00:1a.7: IAA watchdog: status 8028 cmd 10021 > [ 1150.329227] ehci_hcd 0000:00:1a.7: IRQ: status 8009 cmd 10021 > [ 1150.329309] ehci_hcd 0000:00:1a.7: IRQ: status 8028 cmd 10021 > > [ 1216.624651] ehci_hcd 0000:00:1a.7: IRQ: status c009 cmd 10031 > [ 1216.624716] ehci_hcd 0000:00:1a.7: IAA watchdog: status c028 cmd 10031 > [ 1216.634720] ehci_hcd 0000:00:1a.7: IRQ: status c028 cmd 10031 > > [ 1294.496102] ehci_hcd 0000:00:1a.7: IRQ: status c009 cmd 10031 > [ 1294.496211] ehci_hcd 0000:00:1a.7: IAA watchdog: status c028 cmd 10031 > [ 1294.496515] ehci_hcd 0000:00:1a.7: IRQ: status c009 cmd 10031 > > [ 1356.078251] ehci_hcd 0000:00:1a.7: IRQ: status c009 cmd 10031 > [ 1356.078294] ehci_hcd 0000:00:1a.7: IAA watchdog: status c028 cmd 10031 > [ 1356.078556] ehci_hcd 0000:00:1a.7: IRQ: status c009 cmd 10031 I should have been more specific earlier; I need to see all the "IRQ" messages for at least 11 ms preceding each "IAA watchdog" message. If there are no other such messages, let me know. Also, it would help a lot to have a log message added near the end of ehci-q.c:start_unlink_async(), just before the ehci_writel() statement. Something simple, like: ehci_info(ehci, "IAAD\n"); 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
