Hello, I performed several tests on the subject of this bug and I found out that it happens only if a use a specific USB disk. It doesn't show if I use another USB device such as a pen drive or a different disk and it doesn't show if I don't run X11.
When I use the USB disk responsible for the kernel oops, while not using X11, this is what I find in /var/log/syslog: Mar 18 18:05:02 gretux kernel: [31132.186145] usb 4-2.4: new SuperSpeed USB device number 3 using xhci_hcd Mar 18 18:05:02 gretux kernel: [31132.217142] usb 4-2.4: New USB device found, idVendor=1058, idProduct=10b8 Mar 18 18:05:02 gretux kernel: [31132.225409] usb 4-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=5 Mar 18 18:05:02 gretux kernel: [31132.233653] usb 4-2.4: Product: Elements 10B8 Mar 18 18:05:02 gretux kernel: [31132.241893] usb 4-2.4: Manufacturer: Western Digital Mar 18 18:05:02 gretux kernel: [31132.241895] usb 4-2.4: SerialNumber: 575850314537345735433741 Mar 18 18:05:02 gretux mtp-probe: checking bus 4, device 3: "/sys/devices/pci0000:00/0000:00:1c.6/0000:06:00.0/usb4/4-2/4-2.4" Mar 18 18:05:02 gretux mtp-probe: bus: 4, device: 3 was not an MTP device Mar 18 18:05:02 gretux kernel: [31132.242436] usb-storage 4-2.4:1.0: USB Mass Storage device detected Mar 18 18:05:02 gretux kernel: [31132.242866] scsi host7: usb-storage 4-2.4:1.0 Mar 18 18:05:03 gretux kernel: [31133.243079] scsi 7:0:0:0: Direct-Access WD Elements 10B8 1012 PQ: 0 ANSI: 6 Mar 18 18:05:03 gretux kernel: [31133.253656] sd 7:0:0:0: Attached scsi generic sg4 type 0 Mar 18 18:05:03 gretux kernel: [31133.255625] sd 7:0:0:0: [sdd] Spinning up disk... Mar 18 18:05:10 gretux kernel: [31134.258094] .......ready Mar 18 18:05:10 gretux kernel: [31140.293441] sd 7:0:0:0: [sdd] 3906963456 512-byte logical blocks: (2.00 TB/1.82 TiB) Mar 18 18:05:10 gretux kernel: [31140.305016] sd 7:0:0:0: [sdd] Write Protect is off Mar 18 18:05:10 gretux kernel: [31140.305019] sd 7:0:0:0: [sdd] Mode Sense: 47 00 10 08 Mar 18 18:05:10 gretux kernel: [31140.305485] sd 7:0:0:0: [sdd] No Caching mode page found Mar 18 18:05:10 gretux kernel: [31140.305487] sd 7:0:0:0: [sdd] Assuming drive cache: write through Mar 18 18:05:10 gretux kernel: [31140.368350] sdd: sdd1 Mar 18 18:05:10 gretux kernel: [31140.369729] sd 7:0:0:0: [sdd] Attached SCSI disk Mar 18 18:06:43 gretux kernel: [31233.150733] EXT4-fs (sdd1): mounted filesystem with ordered data mode. Opts: (null) I'm using an nvidia driver for my GeForce GTS 450. I hope this might help. -- Fernando Santagata
