Looks good! Started with slub_debug and not seeing any Oopses when uplugging usb3 storage.

$ uname -rsov
Linux 3.13.0-87-generic #133-Ubuntu SMP Tue May 24 18:32:09 UTC 2016 GNU/Linux

$ dmesg
...
[   79.103213] usb 4-3: new SuperSpeed USB device number 2 using xhci_hcd
[   79.121274] usb 4-3: Parent hub missing LPM exit latency info.  Power management will be impacted.
[   79.124995] usb 4-3: New USB device found, idVendor=090c, idProduct=1000
[   79.124997] usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   79.124998] usb 4-3: Product: USB Flash Disk
[   79.124999] usb 4-3: Manufacturer: General
[   79.125000] usb 4-3: SerialNumber: 0411200000013498
[   79.133013] usb-storage 4-3:1.0: USB Mass Storage device detected
[   79.133058] scsi9 : usb-storage 4-3:1.0
[   79.133100] usbcore: registered new interface driver usb-storage
[   80.467553] scsi 9:0:0:0: Direct-Access     General  USB Flash Disk   1100 PQ: 0 ANSI: 6
[   80.467749] sd 9:0:0:0: Attached scsi generic sg1 type 0
[   80.468294] sd 9:0:0:0: [sdb] 125960192 512-byte logical blocks: (64.4 GB/60.0 GiB)
[   80.468733] sd 9:0:0:0: [sdb] Write Protect is off
[   80.468735] sd 9:0:0:0: [sdb] Mode Sense: 43 00 00 00
[   80.469164] sd 9:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   80.476633]  sdb: sdb1 sdb2
[   80.478409] sd 9:0:0:0: [sdb] Attached SCSI removable disk
[   84.533954] usb 4-3: USB disconnect, device number 2
[   84.534205] sd 9:0:0:0: [sdb] Synchronizing SCSI cache
[   84.534243] sd 9:0:0:0: [sdb]  
[   84.534246] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[   92.110736] usb 4-3: new SuperSpeed USB device number 3 using xhci_hcd
[   92.128888] usb 4-3: Parent hub missing LPM exit latency info.  Power management will be impacted.
[   92.132571] usb 4-3: New USB device found, idVendor=090c, idProduct=1000
[   92.132573] usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   92.132574] usb 4-3: Product: USB Flash Disk
[   92.132575] usb 4-3: Manufacturer: General
[   92.132576] usb 4-3: SerialNumber: 0411200000013498
[   92.133446] usb-storage 4-3:1.0: USB Mass Storage device detected
[   92.133507] scsi10 : usb-storage 4-3:1.0
[   93.393578] usb 4-3: reset SuperSpeed USB device number 3 using xhci_hcd
[   93.411644] usb 4-3: Parent hub missing LPM exit latency info.  Power management will be impacted.
[   93.412809] xhci_hcd 0000:08:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807a239f400
[   93.412811] xhci_hcd 0000:08:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807a239f440
[   93.751289] scsi 10:0:0:0: Direct-Access     General  USB Flash Disk   1100 PQ: 0 ANSI: 6
[   93.751502] sd 10:0:0:0: Attached scsi generic sg1 type 0
[   93.752012] sd 10:0:0:0: [sdb] 125960192 512-byte logical blocks: (64.4 GB/60.0 GiB)
[   93.752456] sd 10:0:0:0: [sdb] Write Protect is off
[   93.752459] sd 10:0:0:0: [sdb] Mode Sense: 43 00 00 00
[   93.752888] sd 10:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   93.760680]  sdb: sdb1 sdb2
[   93.762441] sd 10:0:0:0: [sdb] Attached SCSI removable disk
[   98.704248] usb 4-3: USB disconnect, device number 3
...