Hi everybody!
I am experiencing a problem with my USB card reader and xHCI. Simply
using dd to write an image to a SD card results in USB resets after a
few seconds. Reading with dd or using cp after creating a filesystem on
the card also triggers the issue but usually not as quick as writing to
it with dd. All in all it is unusable. Sometimes these resets also
happen immediately after connecting the reader. With EHCI everything
just works fine.
relevant kernel output:
usb 1-2: new high-speed USB device number 19 using xhci_hcd
usb-storage 1-2:1.0: USB Mass Storage device detected
scsi22 : usb-storage 1-2:1.0
scsi 22:0:0:0: Direct-Access Generic USB SD Reader 1.00 PQ: 0
ANSI: 0
scsi 22:0:0:1: Direct-Access Generic USB CF Reader 1.01 PQ: 0
ANSI: 0
scsi 22:0:0:2: Direct-Access Generic USB SM Reader 1.02 PQ: 0
ANSI: 0
scsi 22:0:0:3: Direct-Access Generic USB MS Reader 1.03 PQ: 0
ANSI: 0
sd 22:0:0:0: [sdb] 15646720 512-byte logical blocks: (8.01 GB/7.46 GiB)
sd 22:0:0:0: [sdb] Write Protect is off
sd 22:0:0:0: [sdb] Mode Sense: 03 00 00 00
sd 22:0:0:0: [sdb] No Caching mode page found
sd 22:0:0:0: [sdb] Assuming drive cache: write through
sd 22:0:0:1: [sdc] Attached SCSI removable disk
sd 22:0:0:2: [sdd] Attached SCSI removable disk
sd 22:0:0:3: [sde] Attached SCSI removable disk
sd 22:0:0:0: [sdb] No Caching mode page found
sd 22:0:0:0: [sdb] Assuming drive cache: write through
sdb: unknown partition table
sd 22:0:0:0: [sdb] No Caching mode page found
sd 22:0:0:0: [sdb] Assuming drive cache: write through
sd 22:0:0:0: [sdb] Attached SCSI removable disk
usb 1-2: reset high-speed USB device number 19 using xhci_hcd
xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep
ffff8801b6837600
xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep
ffff8801b6837640
sd 22:0:0:0: [sdb] Media Changed
sd 22:0:0:0: [sdb]
Result: hostbyte=0x00 driverbyte=0x08
sd 22:0:0:0: [sdb]
Sense Key : 0x6 [current]
Info fld=0x0
sd 22:0:0:0: [sdb]
ASC=0x28 ASCQ=0x0
sd 22:0:0:0: [sdb] CDB:
cdb[0]=0x28: 28 00 00 00 1d 20 00 00 08 00
end_request: I/O error, dev sdb, sector 7456
sd 22:0:0:0: [sdb] No Caching mode page found
sd 22:0:0:0: [sdb] Assuming drive cache: write through
sd 22:0:0:0: [sdb] No Caching mode page found
sd 22:0:0:0: [sdb] Assuming drive cache: write through
sdb: unknown partition table
$ uname -r
3.13.5-1-ARCH
$ lspci -nn|grep USB
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
# lsusb -d 058f:6362 -v
Bus 001 Device 020: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x058f Alcor Micro Corp.
idProduct 0x6362 Flash Card Reader/Writer
bcdDevice 1.29
iManufacturer 1 Generic
iProduct 2 Mass Storage Device
iSerial 3 058F312D81B
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 250mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
usbmon trace (writing /dev/zero to card with dd triggering the issue):
http://pastebin.com/raw.php?i=dNbtUeJY
--
Regards,
Richard Schütz
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