This issue affects me also.
My PC attach a USB-3 2TB*2 Raid0 storage. It disconnect every several hours
when the disk is in idle.
julien@julien-htpc:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 54
model name : Intel(R) Atom(TM) CPU D2550 @ 1.86GHz
stepping : 1
microcode : 0x106
cpu MHz : 1861.956
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm
constant_tsc arch_perfmon pebs bts nopl nonstop_tsc aperfmperf pni dtes64
monitor ds_cpl tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm arat dtherm
bugs :
bogomips : 3723.91
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
julien@julien-htpc:~$ uname -a
Linux julien-htpc 3.19.0-31-generic #36-Ubuntu SMP Wed Oct 7 15:04:02 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
julien@julien-htpc:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 15.04
Release: 15.04
Codename: vivid
[Mon Nov 2 08:01:37 2015] sd 15:0:0:0: [sdc] Attached SCSI disk
[Mon Nov 2 21:41:23 2015] usb 2-2: USB disconnect, device number 13
[Mon Nov 2 21:41:23 2015] scsi 15:0:0:0: rejecting I/O to offline device
[Mon Nov 2 21:41:23 2015] scsi 15:0:0:0: [sdc] killing request
[Mon Nov 2 21:41:23 2015] scsi 15:0:0:0: [sdc] FAILED Result:
hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[Mon Nov 2 21:41:23 2015] scsi 15:0:0:0: [sdc] CDB:
[Mon Nov 2 21:41:23 2015] Read(16): 88 00 00 00 00 00 00 00 00 00 00 00 00 08
00 00
[Mon Nov 2 21:41:23 2015] blk_update_request: I/O error, dev sdc, sector 0
[Mon Nov 2 21:41:23 2015] Buffer I/O error on dev sdc, logical block 0, async
page read
[Mon Nov 2 21:41:23 2015] Buffer I/O error on dev sdc, logical block 0, async
page read
[Mon Nov 2 21:41:36 2015] usb 1-2: new high-speed USB device number 15 using
xhci_hcd
[Mon Nov 2 21:41:36 2015] usb 2-2: new SuperSpeed USB device number 14 using
xhci_hcd
[Mon Nov 2 21:41:36 2015] usb 2-2: New USB device found, idVendor=152d,
idProduct=0539
[Mon Nov 2 21:41:36 2015] usb 2-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=5
[Mon Nov 2 21:41:36 2015] usb 2-2: Product: USB to ATA/ATAPI Bridge
[Mon Nov 2 21:41:36 2015] usb 2-2: Manufacturer: JMicron
[Mon Nov 2 21:41:36 2015] usb 2-2: SerialNumber: CEE983BFFFFF
[Mon Nov 2 21:41:36 2015] usb-storage 2-2:1.0: USB Mass Storage device detected
[Mon Nov 2 21:41:36 2015] usb-storage 2-2:1.0: Quirks match for vid 152d pid
0539: 4000000
[Mon Nov 2 21:41:36 2015] scsi host16: usb-storage 2-2:1.0
[Mon Nov 2 21:41:37 2015] scsi 16:0:0:0: Direct-Access ORICO H/ W RAID0
PQ: 0 ANSI: 5
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: Attached scsi generic sg1 type 0
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: [sdc] Very big device. Trying to use
READ CAPACITY(16).
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: [sdc] 7813857280 512-byte logical
blocks: (4.00 TB/3.63 TiB)
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: [sdc] Write Protect is off
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: [sdc] Mode Sense: 28 00 00 00
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: [sdc] No Caching mode page found
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: [sdc] Assuming drive cache: write
through
[Mon Nov 2 21:41:37 2015] sd 16:0:0:0: [sdc] Very big device. Trying to use
READ CAPACITY(16).
[Mon Nov 2 21:41:38 2015] sdc: sdc1
[Mon Nov 2 21:41:38 2015] sd 16:0:0:0: [sdc] Very big device. Trying to use
READ CAPACITY(16).
[Mon Nov 2 21:41:38 2015] sd 16:0:0:0: [sdc] Attached SCSI disk
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https://bugs.launchpad.net/bugs/1012291
Title:
USB disconnect
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