Good morning wolfi323
Not sure if I understand this correctly: does that mean it only works on the USB2 connector in Debian too?
But your original post suggested that in Debian USB3 works as well.
Yes, you are right, its pretty much confusing, and not all seems to be stable reproducible
I started again for a more clear reportis posting.here. Removed all so far done blacklist-stuff.
Trying blacklist again with “mkinitrd” after this post.
Does “mkinitrd” not need any parameters and /or options ?
Just (root) “mkinitrd” ?
I noticed, that I get much better results when the usb3 stick is plugged in before plug in the usb3 hdd on the same bus, see lsusb outputs
Here is what I did this morning:
on Debian Jessie:
$ uname -a
Linux pc1 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-1 (2016-03-06) x86_64 GNU/Linux
plug USB3 Stick:
~$ dmesg
791.240337] usb 2-2: new SuperSpeed USB device number 15 using xhci_hcd
791.256621] usb 2-2: New USB device found, idVendor=2537, idProduct=1081
791.256629] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
791.256634] usb 2-2: Product: USB Flash Disk
791.256639] usb 2-2: Manufacturer: General
791.256644] usb 2-2: SerialNumber: 0122111900000270
791.257384] usb-storage 2-2:1.0: USB Mass Storage device detected
791.258220] scsi17 : usb-storage 2-2:1.0
793.510364] scsi 17:0:0:0: Direct-Access General USB Flash Disk PQ: 0 ANSI: 6
793.511441] sd 17:0:0:0: Attached scsi generic sg7 type 0
793.515018] sd 17:0:0:0: [sdg] 62521088 512-byte logical blocks: (32.0 GB/29.8 GiB)
793.517795] sd 17:0:0:0: [sdg] Write Protect is off
793.517808] sd 17:0:0:0: [sdg] Mode Sense: 43 00 00 00
793.518452] sd 17:0:0:0: [sdg] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
793.523295] sdg: sdg1
793.528339] sd 17:0:0:0: [sdg] Attached SCSI removable disk
~$ lsusb
Bus 002 Device 015: ID 2537:1081
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 2109:0811
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 05e3:070e Genesys Logic, Inc. USB 2.0 Card Reader
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
op@pc1:~$
plug USB3 Seagate external USB3 hdd:
connect notification pops up
~$ dmesg
1027.328446] usb 2-1: new SuperSpeed USB device number 16 using xhci_hcd
1027.344934] usb 2-1: New USB device found, idVendor=0bc2, idProduct=ab34
1027.344941] usb 2-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1
1027.344947] usb 2-1: Product: Backup+ Desk
1027.344952] usb 2-1: Manufacturer: Seagate
1027.344956] usb 2-1: SerialNumber: NA7DG1QR
1027.345701] usb-storage 2-1:1.0: USB Mass Storage device detected
1027.346562] scsi18 : usb-storage 2-1:1.0
1028.344570] scsi 18:0:0:0: Direct-Access Seagate Backup+ Desk 0406 PQ: 0 ANSI: 6
1028.345436] sd 18:0:0:0: Attached scsi generic sg8 type 0
1028.347876] sd 18:0:0:0: [sdi] Spinning up disk...
1029.348060] ...........ready
1039.388483] sd 18:0:0:0: [sdi] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB)
1039.437548] sd 18:0:0:0: [sdi] Write Protect is off
1039.437556] sd 18:0:0:0: [sdi] Mode Sense: 4f 00 00 00
1039.438112] sd 18:0:0:0: [sdi] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
1039.439560] sd 18:0:0:0: [sdi] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB)
1039.464137] sdi: sdi1
1039.465140] sd 18:0:0:0: [sdi] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB)
1039.466201] sd 18:0:0:0: [sdi] Attached SCSI disk
1040.074477] EXT4-fs (sdi1): recovery complete
1040.111790] EXT4-fs (sdi1): mounted filesystem with ordered data mode. Opts: (null)
~$ lsusb
Bus 002 Device 015: ID 2537:1081
Bus 002 Device 016: ID 0bc2:ab34 Seagate RSS LLC
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 2109:0811
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 05e3:070e Genesys Logic, Inc. USB 2.0 Card Reader
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
I can mount and read/write to both USB3 devices. All as I need.
###########################################################################
OpenSuse 13.1
> uname -a
Linux linux-aqo3 3.12.53-40-desktop #1 SMP PREEMPT Thu Feb 25 06:26:23 UTC 2016 (b2ce64e) x86_64 x86_64 x86_64 GNU/Linux
usb3 stick and usb3 hadd plugged already in on startup
> lsusb
Bus 001 Device 002: ID 05e3:070e Genesys Logic, Inc. USB 2.0 Card Reader
Bus 002 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 002: ID 2109:0811
Bus 004 Device 002: ID 0bc2:ab34 Seagate RSS LLC
Bus 004 Device 003: ID 2537:1081
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
found this in dmesg, maybe contains some hints (?)
> dmesg
13.001448] fuse init (API version 7.22)
66.896706] usb 4-2: reset SuperSpeed USB device number 3 using xhci_hcd
66.907360] usb 4-2: Parent hub missing LPM exit latency info. Power management will be impacted.
66.907485] xhci_hcd 0000:03:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800abbd5080
66.907492] xhci_hcd 0000:03:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800abbd50c8
69.101936] SFW2-INext-DROP-DEFLT IN=enp0s7 OUT= MAC= SRC=fe80:0000:0000:0000:be5f:f4ff:fe05:49b5 D
only the usb3 stick is notified and accessible
#################################################################################
disconnect usb3 hdd, leave usb3 stick plugged in.
462.293320] usb 4-2: new SuperSpeed USB device number 4 using xhci_hcd
462.304350] usb 4-2: Parent hub missing LPM exit latency info. Power management will be impacted.
462.304679] usb 4-2: New USB device found, idVendor=2537, idProduct=1081
462.304686] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
462.304692] usb 4-2: Product: USB Flash Disk
462.304697] usb 4-2: Manufacturer: General
462.304702] usb 4-2: SerialNumber: 0122111900000270
462.305696] usb-storage 4-2:1.0: USB Mass Storage device detected
462.307349] scsi5 : usb-storage 4-2:1.0
463.203417] usb 4-1: new SuperSpeed USB device number 5 using xhci_hcd
463.214359] usb 4-1: Parent hub missing LPM exit latency info. Power management will be impacted.
463.214903] usb 4-1: New USB device found, idVendor=0bc2, idProduct=ab34
463.214911] usb 4-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1
463.214917] usb 4-1: Product: Backup+ Desk
463.214922] usb 4-1: Manufacturer: Seagate
463.214927] usb 4-1: SerialNumber: NA7DG1QR
463.308645] scsi 5:0:0:0: Direct-Access General USB Flash Disk PQ: 0 ANSI: 6
463.310335] sd 5:0:0:0: Attached scsi generic sg7 type 0
463.310667] sd 5:0:0:0: [sdg] 62521088 512-byte logical blocks: (32.0 GB/29.8 GiB)
463.311491] sd 5:0:0:0: [sdg] Write Protect is off
463.311501] sd 5:0:0:0: [sdg] Mode Sense: 43 00 00 00
463.312087] sd 5:0:0:0: [sdg] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
463.315640] sdg: sdg1
463.318723] sd 5:0:0:0: [sdg] Attached SCSI removable disk
op@linux-aqo3:~>
> lsusb
Bus 001 Device 002: ID 05e3:070e Genesys Logic, Inc. USB 2.0 Card Reader
Bus 002 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 002: ID 2109:0811
Bus 004 Device 005: ID 0bc2:ab34 Seagate RSS LLC
Bus 004 Device 004: ID 2537:1081
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
still the usb3 stick only is notified and accessible
Now I will try the blacklist again but with regenerarting init-ram disk.
Please let me know if it is really sufficient to run “mkinitrd” somewhere as root .
And thank you for your patience 
wally