OK, while this problem seems to happen only if I physically move the laptop or the drive, here is what happens upon an attempt to disconnect and reconnect the drive: Sep 5 23:09:50 snowball2 kernel: [14616.142633] xhci_hcd 0000:02:00.0: ERROR no room on ep ring Sep 5 23:09:50 snowball2 kernel: [14616.142648] xhci_hcd 0000:02:00.0: ERR: No room for command on command ring Sep 5 23:09:50 snowball2 kernel: [14616.142661] hub 3-0:1.0: couldn't allocate port 2 usb_device Sep 5 23:09:52 snowball2 kernel: [14618.219332] xhci_hcd 0000:02:00.0: ERROR no room on ep ring Sep 5 23:09:52 snowball2 kernel: [14618.219347] xhci_hcd 0000:02:00.0: ERR: No room for command on command ring Sep 5 23:09:52 snowball2 kernel: [14618.219360] hub 4-0:1.0: couldn't allocate port 2 usb_device Is that some sort of hardware failure I should investigate? Julian W dniu 31.08.2011 23:51, Julian Sikorski pisze: > I am already running the latest available BIOS/EC. In the light of the > possible faulty/loose cable, I'll have a look if it will keep happening > without moving the drive/laptop. Thank you for researching this. > > Julian > > W dniu 31.08.2011 23:47, Joshua Scoggins pisze: >> I did a little research on your laptop (Clevo P150HM) and it seems >> that the USB 3.0 ports are powered by NEC's chipset so what I'm >> guessing is that you may need to update your BIOS as I was reading >> about USB 3.0 issues with this laptop and that a BIOS update fixed it. >> That would be a good place to start especially with what I'm seeing in >> the messages log you posted. If the problem still persists then check >> the enclosure on another 3.0 enabled machine and see if you get the >> same failure. >> >> -Josh >> >> On Wed, Aug 31, 2011 at 1:25 PM, Julian Sikorski <belegdol@xxxxxxxxx> wrote: >>> Hi, >>> >>> I originally reported this problem here: >>> https://bugzilla.kernel.org/show_bug.cgi?id=35212 >>> Summing up, the external hard drive will produce an io-error after about >>> 30 minutes of being connected. After such event, system does not notice >>> if the device is re-connected upon disconnection. I am attaching the >>> relevant portion of /var/log/messages. >>> The problem happens on an up-to-date Fedora 15 x86_64 (running kernel >>> 2.6.40.3-0.fc15.x86_64) on a Clevo P150HM laptop and Lacie Rugged USB >>> 3.0 hard disk. >>> Please let me know if I can provide more information >>> >>> Regards, >>> Julian >>> >> -- >> 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 >> > > > -- > 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 > -- 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
