On Wed, 11 Apr 2012, Reartes Guillermo wrote: > I am currently running F16 X86_64 (.3.1-3.fc16.x86_64): > But at least one of the bridges also disconnects with Centos 5.3 (i am > stil testing that) > > > I have found multiple usb-sata bridges disconnect themselves > sometimes, when growisofs gives error X, if i retrying enough times, > either i gets error Y (and the bridge reset with usb consequences > sometimes) or the disc is burn and no problem. > > It happens with: > > * Writer: TEAC DV-W28SS-R > > * USB-SATA Bridges: > #1 Sunplus Innovation Technology Inc. (1bcf:0c31) > #2 Sunplus Technology Co., Ltd SATALink SPIF225A (04fc:0c25) > #3 JMicron Technology Corp. / JMicron USA Technology Corp. JM20337 > Hi-Speed USB to SATA & PATA Combo Bridge (152d:2338) ... > Messages: > XXXX kernel: [ 6027.939013] usb 2-1.1: reset high-speed USB device > number 7 using ehci_hcd > > When that happens, all said bridges do disconnect and reset. > They came back and remain functional. But sometimes with certain effects. > > Like when (04fc:0c25) was disconnected and reset. it came back, but > the touchpad became sloppy and some false keypresses happened. Reset What touchpad? Does your DVD drive have a touchpad? > was required. Problem What sort of reset? The log message above indicates that the device had just been reset; why did it need another reset? If you want to track this down, you should collect a usbmon trace. Read the instructions in Documentation/usb/usbmon.txt. > ceased when the offending device was unplugged and returned if > replugged without a reboot. > > Or when (1bcf:0c31) was disconnected and reset, it came back, but > ehic-hcd died when i finally unplugged the bridge. ... > XXXX kernel: [ 9104.212925] usb 2-1.1: USB disconnect, device number 5 > XXXX kernel: [ 9148.049696] usb 2-1.1: new high-speed USB device > number 6 using ehci_hcd > XXXX kernel: [ 9148.127310] ehci_hcd 0000:00:1d.0: fatal error > XXXX kernel: [ 9148.131193] ehci_hcd 0000:00:1d.0: HC died; cleaning up > XXXX kernel: [ 9148.134080] ehci_hcd 0000:00:1d.0: force halt; > handshake ffffc9000066e024 00004000 00004000 -> -110 I posted a patch yesterday to fix this problem. Try looking at http://marc.info/?l=linux-usb&m=133408482610287&w=2 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
