Hi Alan, thanks for your answer. There is no apparent crash on the device side and I presume the USB cable is fine but as you imply there might be some subtle problem on the device side. We will investigate. Thank you, Greg. -----Original Message----- From: Alan Stern [mailto:stern@xxxxxxxxxxxxxxxxxxx] Sent: 10 September 2009 17:35 To: Oliver Neukum Cc: linux-usb@xxxxxxxxxxxxxxx; Greg Heinrich Subject: Re: XactErr after resumption On Thu, 10 Sep 2009, Oliver Neukum wrote: > Hi Alan, > > do you have an idea what might cause these errors? > > Thanks > Oliver > > [ 4493.538870] usb usb1: usb auto-resume > [ 4493.538878] ehci_hcd 0000:00:1d.7: resume root hub > [ 4493.538902] usb0: rxqlen 0 --> 10 > [ 4493.538921] usb0: rxqlen 10 --> 20 > [ 4493.538939] usb0: rxqlen 20 --> 30 > [ 4493.538956] usb0: rxqlen 30 --> 40 > [ 4493.538976] usb0: rxqlen 40 --> 50 > [ 4493.538992] usb0: rxqlen 50 --> 59 Those must come from the device driver. > [ 4493.541804] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 1 > [ 4493.548190] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 2 > [ 4493.548314] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 3 > [ 4493.548438] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 4 > [ 4493.548563] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 5 > [ 4493.548688] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 6 > [ 4493.548813] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 7 > [ 4493.548938] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 8 > [ 4493.549063] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 9 > [ 4493.549188] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 10 > [ 4493.549313] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 11 > [ 4493.549438] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 12 > [ 4493.549563] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 13 > [ 4493.549688] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 14 > [ 4493.549814] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 15 > [ 4493.549938] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 16 > [ 4493.550075] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 17 > [ 4493.550189] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 18 > [ 4493.550313] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 19 > [ 4493.550437] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 20 > [ 4493.550563] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 21 > [ 4493.550688] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 22 > [ 4493.550813] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 23 > [ 4493.550937] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 24 > [ 4493.551063] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 25 > [ 4493.551188] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 26 > [ 4493.551313] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 27 > [ 4493.551438] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 28 > [ 4493.551563] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 29 > [ 4493.551688] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 30 > [ 4493.551813] ehci_hcd 0000:00:1d.7: detected XactErr len 0/1536 retry 31 > [ 4493.551938] ehci_hcd 0000:00:1d.7: devpath 1 ep6in 3strikes > [ 4493.551943] usb0: rx throttle -71 This could be caused by a faulty cable, but more likely the device has crashed and isn't replying to packets sent by the host controller. Alan Stern -- ****************************************************************************************** This e-mail (including any attachments) is intended only for the recipient(s) named above. It may contain confidential or privileged information and should not be read, copied or otherwise used by any other person. If you are not a named recipient, please contact the sender by telephone (+44-1454-284800) and destroy the original message. Any statement and/or opinion not related to this company's business and expressed in this message is that of the author and does not necessarily reflect those of Icera. This company does not take any responsibility for the views of the author in any matter not related to the company's objective. ****************************************************************************************** -- 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
