On Samstag, 12. September 2015 14:46:42 Alan Stern wrote: > On Sat, 12 Sep 2015, Hans-Peter Jansen wrote: > > On Freitag, 11. September 2015 10:23:45 Alan Stern wrote: > > > On Fri, 11 Sep 2015, Hans-Peter Jansen wrote: > > > > I still have trouble with storage devices on xhci ports, that > > > > disappear as > > > > soon as I change to an ehci port. > > > > > > > > My current kernel version is 4.1.6. > > > > Device is a Transcend TS-RDF8K USB3.0 sdcard reader, tested directly > > > > on > > > > rear panel I/O USB3.0 port of a z97 series MB (ASUS Z97-A) with the > > > > original cable, and a SanDisk Ultra 64GB SDXC media. > > > > > > Can you post a usbmon trace showing what happens when the card reader > > > is plugged in? Instructions are in the kernel source file > > > Documentation/usb/usbmon.txt. > > > > With pleasure, Alan. > > > > Here we go, plugged the reader for about 20 secs, result attached. > > The usbmon trace clearly shows the problem: The card reader's firmware > doesn't handle transfers larger than 64 KB properly. (That's a bit of > a guess on my part; what the trace really shows is that transfers of > length 120 KB and 72 KB failed whereas lengths 28 KB and below worked.) > > Anyway, you can supply a quirks parameter for the usb-storage module to > force all transfers to be short: > > modprobe usb-storage quirks=8564:4000:m > > (That's the vendor and product IDs of your card reader, together with a > flag to limit the Max number of sectors per transfer.) Does that fix > the problem? Yes, sort of, thanks, Alan. Unfortunately, write operations render my (fairly capable) desktop nearly unusable, stalls for a couple of seconds, switching desktops take 10-20 secs, while write performance is abysmal for USB 3.0 SDXC class 1 devices. But that got me going. I've updated the firmware on this device to TS26, and now, it behaves better: it performs ok and the desktop is still usable. Cool. May I introduce another faulty device: Fantec AluPro U3 external 2,5" case (Asmedia AS2105 controller) with a HGST HTS721010 7K1000 harddisk. I wasn't able to locate any firmware for this device. Issue here is, the drive is continusly connecting and disconnecting: 2015-09-13T11:55:30.641698+02:00 xrated kernel: [171947.841309] usb 7-1: USB disconnect, device number 91 2015-09-13T11:55:30.853671+02:00 xrated kernel: [171948.053246] usb 7-1: new SuperSpeed USB device number 92 using xhci_hcd 2015-09-13T11:55:30.864676+02:00 xrated kernel: [171948.065133] usb 7-1: New USB device found, idVendor=174c, idProduct=5106 2015-09-13T11:55:30.864681+02:00 xrated kernel: [171948.065134] usb 7-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 2015-09-13T11:55:30.864682+02:00 xrated kernel: [171948.065136] usb 7-1: Product: AS2105 2015-09-13T11:55:30.864682+02:00 xrated kernel: [171948.065136] usb 7-1: Manufacturer: ASMedia 2015-09-13T11:55:30.864683+02:00 xrated kernel: [171948.065137] usb 7-1: SerialNumber: JR10046P2HAJ8N 2015-09-13T11:55:30.865663+02:00 xrated kernel: [171948.065961] usb-storage 7-1:1.0: USB Mass Storage device detected 2015-09-13T11:55:30.865666+02:00 xrated kernel: [171948.066046] scsi host196: usb-storage 7-1:1.0 2015-09-13T11:55:30.867001+02:00 xrated mtp-probe: checking bus 7, device 92: "/sys/devices/pci0000:00/0000:00:14.0/usb7/7-1" 2015-09-13T11:55:30.867182+02:00 xrated mtp-probe: bus: 7, device: 92 was not an MTP device 2015-09-13T11:55:32.111692+02:00 xrated kernel: [171949.310429] usb 7-1: USB disconnect, device number 92 2015-09-13T11:55:32.323698+02:00 xrated kernel: [171949.522367] usb 7-1: new SuperSpeed USB device number 93 using xhci_hcd 2015-09-13T11:55:32.334669+02:00 xrated kernel: [171949.534190] usb 7-1: New USB device found, idVendor=174c, idProduct=5106 2015-09-13T11:55:32.334672+02:00 xrated kernel: [171949.534192] usb 7-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 2015-09-13T11:55:32.334673+02:00 xrated kernel: [171949.534193] usb 7-1: Product: AS2105 2015-09-13T11:55:32.334674+02:00 xrated kernel: [171949.534194] usb 7-1: Manufacturer: ASMedia 2015-09-13T11:55:32.334674+02:00 xrated kernel: [171949.534195] usb 7-1: SerialNumber: JR10046P2HAJ8N 2015-09-13T11:55:32.335663+02:00 xrated kernel: [171949.534983] usb-storage 7-1:1.0: USB Mass Storage device detected 2015-09-13T11:55:32.335665+02:00 xrated kernel: [171949.535057] scsi host197: usb-storage 7-1:1.0 2015-09-13T11:55:32.336710+02:00 xrated mtp-probe: checking bus 7, device 93: "/sys/devices/pci0000:00/0000:00:14.0/usb7/7-1" 2015-09-13T11:55:32.336853+02:00 xrated mtp-probe: bus: 7, device: 93 was not an MTP device 2015-09-13T11:55:33.339668+02:00 xrated kernel: [171950.538223] scsi 197:0:0:0: Direct-Access HGST HTS 721010A9E630 JB0O PQ: 0 ANSI: 5 2015-09-13T11:55:33.339675+02:00 xrated kernel: [171950.538410] sd 197:0:0:0: Attached scsi generic sg5 type 0 2015-09-13T11:55:33.339676+02:00 xrated kernel: [171950.538551] sd 197:0:0:0: [sdd] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) 2015-09-13T11:55:33.340667+02:00 xrated kernel: [171950.538757] sd 197:0:0:0: [sdd] Write Protect is off 2015-09-13T11:55:33.340672+02:00 xrated kernel: [171950.538759] sd 197:0:0:0: [sdd] Mode Sense: 23 00 00 00 2015-09-13T11:55:33.340672+02:00 xrated kernel: [171950.538969] sd 197:0:0:0: [sdd] No Caching mode page found 2015-09-13T11:55:33.340672+02:00 xrated kernel: [171950.538971] sd 197:0:0:0: [sdd] Assuming drive cache: write through 2015-09-13T11:55:33.605675+02:00 xrated kernel: [171950.803782] sdd: sdd1 2015-09-13T11:55:33.606666+02:00 xrated kernel: [171950.804641] sd 197:0:0:0: [sdd] Attached SCSI disk 2015-09-13T11:55:37.080669+02:00 xrated kernel: [171954.276583] usb 7-1: USB disconnect, device number 93 2015-09-13T11:55:37.319707+02:00 xrated kernel: [171954.515466] usb 7-1: new SuperSpeed USB device number 94 using xhci_hcd 2015-09-13T11:55:37.330677+02:00 xrated kernel: [171954.527193] usb 7-1: New USB device found, idVendor=174c, idProduct=5106 2015-09-13T11:55:37.330683+02:00 xrated kernel: [171954.527195] usb 7-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 2015-09-13T11:55:37.330684+02:00 xrated kernel: [171954.527196] usb 7-1: Product: AS2105 2015-09-13T11:55:37.330685+02:00 xrated kernel: [171954.527197] usb 7-1: Manufacturer: ASMedia 2015-09-13T11:55:37.330685+02:00 xrated kernel: [171954.527197] usb 7-1: SerialNumber: JR10046P2HAJ8N 2015-09-13T11:55:37.331682+02:00 xrated kernel: [171954.528056] usb-storage 7-1:1.0: USB Mass Storage device detected 2015-09-13T11:55:37.331687+02:00 xrated kernel: [171954.528120] scsi host198: usb-storage 7-1:1.0 2015-09-13T11:55:37.332796+02:00 xrated mtp-probe: checking bus 7, device 94: "/sys/devices/pci0000:00/0000:00:14.0/usb7/7-1" 2015-09-13T11:55:37.333051+02:00 xrated mtp-probe: bus: 7, device: 94 was not an MTP device 2015-09-13T11:55:38.334682+02:00 xrated kernel: [171955.530079] scsi 198:0:0:0: Direct-Access HGST HTS 721010A9E630 JB0O PQ: 0 ANSI: 5 2015-09-13T11:55:38.334691+02:00 xrated kernel: [171955.530262] sd 198:0:0:0: Attached scsi generic sg5 type 0 2015-09-13T11:55:38.334692+02:00 xrated kernel: [171955.530384] sd 198:0:0:0: [sdd] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) 2015-09-13T11:55:38.334692+02:00 xrated kernel: [171955.530590] sd 198:0:0:0: [sdd] Write Protect is off 2015-09-13T11:55:38.334733+02:00 xrated kernel: [171955.530593] sd 198:0:0:0: [sdd] Mode Sense: 23 00 00 00 2015-09-13T11:55:38.334734+02:00 xrated kernel: [171955.530793] sd 198:0:0:0: [sdd] No Caching mode page found 2015-09-13T11:55:38.334735+02:00 xrated kernel: [171955.530794] sd 198:0:0:0: [sdd] Assuming drive cache: write through 2015-09-13T11:55:38.605672+02:00 xrated kernel: [171955.801214] sdd: sdd1 2015-09-13T11:55:38.606666+02:00 xrated kernel: [171955.802023] sd 198:0:0:0: [sdd] Attached SCSI disk 2015-09-13T11:55:42.425671+02:00 xrated kernel: [171959.618490] usb 7-1: USB disconnect, device number 94 2015-09-13T11:55:42.667688+02:00 xrated kernel: [171959.860384] usb 7-1: new SuperSpeed USB device number 95 using xhci_hcd usbmon log attached. Thanks, Pete -- 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
